JPH056181A - Continuous hit processing device for electronic musical instruments - Google Patents

Abstract

PURPOSE:To prevent occurrence of incongruous playing expression during sound issuance of musical notes which are inputted by beating, by synthesizing one of two musical note generating channels detected by a detection means, with a sound from the other one of the two musical notes generating channels while stopping the sound generation of the other musical note generating channel. CONSTITUTION:In a beat processing device for processing a beat input to an electronic musical instrument having a plurality of musical notes generating channels, one of two sound generating channels detected by a detecting means 20 is synthesized with a sound from the other one of the channels. In this synthesis, the values or envelope levels of sounds generated from the sound generation channels are added together. That is, the sound generating channels interpolate envelope levels in accordance with a desired value indicating an envelope level to be attained by the next time, and a rate indicating a variation in the envelope level per predetermined time, which are given by a CPU 22, so as to generate a smooth envelope in order to control the amplitude of a music node signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument having a plurality of musical tone generating channels, and more particularly to a continuous tapping processing device for performing a so-called continuous tapping operation such as continuous tapping of the same key. Is.

[0002]

2. Description of the Related Art Generally, an electronic musical instrument has a plurality of musical tone generating channels, and when new musical tone information is input by key operation or the like, the musical tone generating channels are selected according to a predetermined selection rule and the new musical tone generating channels are selected. Information is allotted and a new musical sound is generated by the musical sound generation channel.

In such an electronic musical instrument, if there are repeated taps of the same key (in the case of a sequencer or the like, musical tones of the same note are continuously input), all of the musical tones input continuously Although it is possible to sound on different musical tone generation channels, in this case, by repeatedly striking a large number of musical tone generation channels for musical tones of the same key, the musical tones of other keys are alienated. , It is not preferable for performance expression. Therefore, it is necessary to perform some special processing for the continuous hit input, and conventionally, for example, the following processing is performed.

No new tone generation channel is assigned to continuous hits. The tone generation channel to which the tone information is assigned by the previous key depression is assigned the tone information by a new key depression having a continuous hitting relationship with the tone generation channel. The musical tone information generated by a new key depression is assigned to another musical tone generation channel, and the musical tone generation channel to which the musical tone information based on the previous key depression, which has a continuous hitting relationship with that, is forcibly muted. As proposed in Japanese Patent Laid-Open No. Hei 1-1198798, the number of tone generation channels used with the same key is limited to one by giving priority to the one having a larger sound generation amount. As proposed in Japanese Unexamined Patent Publication No. 62-91996, the number of tone generation channels used for consecutive hits is substantially limited by limiting the number of tone generation channels used with the same key to a predetermined number. As proposed in Japanese Patent Laid-Open No. 1-235998, one tone generation channel is synthesized by combining the tone generation amount of the tone information by a new key depression and the tone generation amount of the tone generation channel that is already sounding and is in continuous hitting relation with it. To pronounce.

[0005]

In each of the above-described consecutive hitting processing methods, the number of musical tone generation channels for producing musical tones of the same key by consecutive hits is substantially limited to a specific number or less. However, if the number of tone generation channels to be used for consecutive hits is simply limited in this way, when the number of used tone generation channels for the consecutive hits reaches the limited number, the musical tone in the empty state that can be allocated to other strikes is limited. Even when there is a generation channel, it is not preferable because it may cause an uncomfortable feeling in performance expression, such as stopping the tone generation channel that is already being sounded and is in the continuous hitting relationship.

On the other hand, if the number of musical tone generation channels used for continuous hits is not limited at all, many musical sound generation channels are occupied by the repeated hits and the pronunciation of other musical sounds is alienated as described above. There is a feeling of strangeness, which is not preferable.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a sense of incongruity in performance expression from being generated when a tone that is repeatedly input is pronounced.

[0008]

In order to solve the above-mentioned problems, the electronic musical instrument continuous tap processing apparatus according to the present invention has a continuous tapping relationship among the tone generation channels being sounded, and their pronunciations are integrated. Detection means for detecting two or more tone generation channels in a possible state, and integrating one of the two or more tone generation channels detected by this detection means with another tone generation channel And an integrated means for stopping the sound generation of the tone generation channel. Here, the above-mentioned detection means determines the state that can be integrated by checking the tone generation amount of the tone generation channel, the value corresponding to the tone generation amount (for example, the envelope level, the remaining tone generation amount, the pseudo envelope level, etc.) or the elapsed time from the tone generation. Can be configured to determine

[0009]

The detecting means detects two or more tone generation channels that are in a continuous hitting relationship and are in a state in which their tones can be integrated from the tone generation channels that are being sounded. Here, the two or more tone generation channels that are in a continuous hit relationship are two or more tone generation channels that are generating tone information of the same key (or the same note number), and the state in which pronunciations can be integrated is It means that there is no discomfort in the sense of hearing even if the tone color change is reduced by terminating the state of attack etc., and the pronunciation amount of the tone generation channel,
It can be determined by observing a value corresponding to the amount of sound generation such as the envelope level or the elapsed time from the start of sound generation.

Next, the integration means integrates the sound of the other remaining tone generation channels into one of the two or more tone generation channels detected by the detection means. As a method of integration, the tone generation amount or envelope level of each tone generation channel may be added as it is, or some calculation may be performed and added. Then, the sound generation of the other remaining tone generation channels is stopped and opened, and the newly input tone information is used.

As a result, the number of tone generation channels to be assigned to new consecutive tone information to be inputted one after another is not limited, and the tone generation channels which are currently in sound and which are in a tone relation can be integrated. Since the number of musical sound generation channels occupied for continuous hits is substantially reduced by integrating the above, the uncomfortable feeling in performance expression with respect to the continuous hit input as described above is reduced.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an electronic musical instrument assigning device according to the present invention will be described.
A specific embodiment in the case of being applied to an electronic musical instrument that generates a musical sound of a damped sound system will be described with reference to the drawings. First,
In FIG. 1, the keyboard unit 20 is composed of a keyboard and a key operation detection circuit, detects a key operated on the keyboard by the key operation detection circuit, and generates key data corresponding to the detected key to generate a bus. The CPU 22 is interrupted via 21. The operator group 23 is composed of a plurality of operators for selecting a tone color, and the pedal group 24 is composed of a damper pedal, a sostenuto pedal and the like. Further, the ROM 25 has a CPU 22.
The programs to be executed by the computer, data and tables necessary for each process are stored in advance, and the RAM 26
A working area including various registers necessary for executing the program is set in the. The timer 27 issues a timer interrupt to the CPU 22 at a predetermined time interval (1 mSec).

The CPU 22 executes a predetermined program, receives key data from the keyboard unit 20 in response to an interrupt from the keyboard unit 20, and writes this key data in a corresponding register of the RAM 26. Also, based on a timer interrupt from the timer 27, the operation setting state of the operator group 23 and the operation state of the pedal group 24 are detected at predetermined time intervals by each operator detection circuit 2.
8 and the pedal detection circuit 29 are controlled and detected, and are written in the corresponding registers of the RAM 26 as operator data and pedal data. Further, the tone generation circuit 30 having 16 tone generation channels is controlled by executing a predetermined program based on the written key data. The tone generation circuit 30 generates a desired tone signal under the control of the CPU 22 and sends it to the speaker 32 via the amplifier 31 to generate a tone.

The tone generation channel generates a tone signal based on a tone generation instruction from the CPU 22 and a tone generation parameter given at that time, and changes the generated tone signal according to the passage of time. Further, the musical tone generation channel interpolates the envelope level based on the target value given by the CPU 22 indicating the envelope level to be reached next and the rate indicating the amount of change of the envelope level per predetermined time to generate a smooth envelope. Control the amplitude of the musical tone signal, attenuate the envelope level in accordance with a predetermined rapid attenuation rate in response to a rapid attenuation instruction, and when the envelope level becomes "0", the rapid attenuation end FIFO provided in the musical tone generation circuit 30 is controlled. Stack the tone generation channel numbers. Next, RAM
Various maps such as a note map set in 26 predetermined areas will be described with reference to FIGS. 2 to 5. 2 to 5 show a part of these maps.

Note map (FIG. 2) "0" to "127" correspond to the note number indicating the pitch of the musical tone, and the following is stored. (1) Note status: With a note-on of "1",
Note-off is indicated by "0". (2) Sostenuto status: Indicates sostenuto on by "1" and sostenuto off by "0".

Task management map (FIG. 4) The following items are stored corresponding to the task numbers indicating the types of tasks by "1" to "7". As for the task numbers, "1" is a key data receiving task, "2" is a main assigner task, "3" is a sounding task, "4" is a pre-assigner task, "5" is an envelope task, and "6" is The pedal task, “7”, is an operator task, and the lower the number, the higher the priority. (1) Timer processing request flag: Indicates that timer processing is necessary with "1". (2) Status: "0" indicates that the task status is run, and "1" indicates that the task status is ready.
The weight is indicated by "2". (3) Waiting event value: Indicates the type of waiting event whose status is wait. (4) Event occurrence flag: The event occurrence is indicated by "1" for each event of the task.

Music tone generation channel management map (FIG. 5) The following are stored corresponding to the tone generation channel numbers indicating 16 tone generation channels by the numbers "0" to "15". (1) Pronunciation amount: The pronunciation amount of the musical sound currently being generated is set to "0000."
It is indicated by "H" to "FFFFH". (2) Truncate prohibition flag: Prohibition of allocation of new musical tone is indicated by "1". Is indicated by “1.” (4) Processing wait flag 1: Waiting for the first processing in the sounding task is indicated by “1.” (5) Processing wait flag 2: Waiting for the second processing in the sounding task. Is indicated by “1.” (6) Processing wait flag 3: Waiting for processing of the third processing in the sounding task is indicated by “1.” (7) Note number: Indicates the pitch of a musical tone. (8) Velocity : Indicates the velocity of a musical sound (9) Musical tone generation parameter group: Indicates the values of various parameters related to musical tone generation (10) Integration prohibition flag: Indicates the integration processing prohibition in the envelope task with "1".

Envelope management map (FIG. 3) The followings are stored corresponding to the envelope channel numbers indicating 16 envelope channels by numbers "0" to "15" corresponding to each tone generation channel . . (1) Envelope level: Envelope level is "00"
00H "to" FFFFH "(2) Target value: The envelope level to be reached next is shown as" 0000H "to" FFFFH "(3) Rate: Envelope level per predetermined time (5 mSec) It indicates the amount of change.Specifically, it is composed of a sign bit indicating positive and negative and a data bit indicating an absolute value from “0000H” to “FFFFH.” (4) Phase number: current phase number (start of tone generation) (5) Truncation prohibition phase number: Indicates the final phase number that prohibits the allocation of new musical tones (6) Envelope generation parameter group: Indicates the values of various parameters related to musical tone envelope generation. (7) Old envelope level: Shows the envelope level before one phase (8) Integration prohibition phase number: In the envelope task Shows the final phase number to prohibit kick integration process.

The operation of the electronic musical instrument constructed as described above will first be outlined. In the electronic musical instrument of this embodiment, various tasks, that is, the key data receiving task, the main assigner task, the sounding task, the pre-assigner task, the envelope task, the pedal task, the operator task, under the management of the monitor program, It is executed by multitasking while performing priority processing between tasks. Here, the monitor program includes a reset routine, an event wait monitor call routine, an event occurrence monitor call routine, a timer interrupt processing routine, and a key data reception interrupt processing routine. The key data reception task (FIG. 11) reads musical tone information (key data) from the keyboard section 20 or the like, performs note-on processing at the time of a note-on message, and activates the main assigner. The main assigner task (FIG. 12) selects a tone generation channel in accordance with the assigned order set based on the preassigned order of the tone generation channel set in the pre-assigner task, and requests the sounding task to sound. The pronunciation task (FIGS. 13 and 14) performs a process of stopping the tone generation channel selected by the main assigner task if the tone generation channel is being sounded, and if the tone generation is stopped, Or when stopped, it calculates various parameters necessary for the tone generation channel to generate the tone information based on the input tone information, and transfers the calculated parameters to the tone generation channel. Instruct to start pronunciation.

The pre-assigner task (FIG. 15) is periodically activated by a timer to read the tone generation amount of each tone generation channel from the tone generation channel management map, and set this as the pre-assigner tone generation amount. By arranging in ascending order, the pre-assignment order of each tone generation channel is set. The tone generation amount of the tone generation channel management map is sequentially updated by the envelope task. In the envelope task (Fig. 16), it is checked whether or not the tone generation channel has finished sounding. For those that have not finished tone generation, in principle, the key-depression state (note status) or pedal state of the tone generation channel is checked. In consideration of the above, the amount of sound generation is updated and the continuous tap sound integration processing is performed. In the continuous tone generation integration processing (FIG. 17), two tone generation channels that are in a continuous tone relationship are detected from the tone generation channels that are being sounded, and it is determined whether or not their tone generation states are in a state where they can be synthesized, and integration is possible. If you are in
A tone generation channel with a small pronunciation is integrated with a tone generation channel with a large tone, and the integrated tone generation channel with a small tone is stopped and released.

Next, the meanings of various variables used in the flowcharts of FIGS. 6 to 18 will be described. NSTK request source task number: Indicates the task number of the task that made the monitor call. NSET Request source event value: Indicates the type of event to be processed next in the task that made the monitor call. NDTK request destination task number: Shows the task number of the next scheduled task. NDET Request destination event value: Indicates the type of event to be processed in the next scheduled task. IEDF initial setting completion flag: Indicates the completion of initial setting in all tasks with "1". TCTN Timer interrupt processing target number: Indicates the task number of the timer interrupt processing target. TCNE [N] Nth task timer counter value: Indicates the value of the timer counter for the task whose task number is N. TCND [N] Nth task time interval: Indicates the time interval for issuing a timer event to the task with the task number N. TCNE [TCTN] TCTN task timer counter value: Indicates the value of the timer counter for the task whose task number is the timer interrupt processing target number TCTN. TCND [TCTN] TCTN task time interval: Indicates the time interval for issuing a timer event to the task whose task number is the timer interrupt processing target number TCTN.

[Key Data Reception Task] NTNM Note Number: Indicates the pitch of performance information based on the note-on message and / or the note-off message. NTST note status: "1" indicates performance information based on the note-on message, and "0" indicates performance information based on the note-off message. NTVL velocity: Indicates the velocity of performance information based on the note-on message.

[Main Assigner Task] MASS [N] N-th assigned tone generation channel number:
The musical tone channel number of the musical tone generation channel whose assignment order is the Nth assigned order (Nth assigned order) is shown. TASN Target assignment order: Indicates the assignment order number of the assignment target. MAEF Main assigner processing flag: “1” indicates that new assign processing was performed in the main assigner task
I will show you. MASS [TASN] Musical tone generation channel number of assignment order TASN: Indicates the tone generation channel number of the tone generation channel whose assignment order is the target assignment order TASN. GACN Number of assignable tone generation channels: Indicates the number of assignable tone generation channels.

[Sound Generation Task] GCTN Sound Generation Channel Number for Sound Generation Processing: Indicates the sound generation channel number for processing. TDNF Rapid decay incomplete flag: Indicates by one that one of the tone generation channels is undergoing rapid decay.

[Pre-Assigner Task] GN Musical Sound Generation Channel Number PLEV [GN] Musical Sound Generation Channel Number GN Pre-Assigner Sound Generation Amount N Preassigned PASS [N] Nth Preassigned Musical Sound Generation Channel Number:
The tone generation channel number of the tone generation channel having the pre-assigned rank Nth is shown. PACN Number of assignable tone generation channels for pre-signer: Indicates the number of assignable tone generation channels in the pre-assigner task.

[Envelope task] ECTN Envelope processing target number ENNM Envelope processing target note number FCTN Integration comparison target number FLEV Integration comparison target envelope level ELEV Integration target envelope level TLEV Integration envelope level TDLV integration target value [Pedal task] DMPV damper value Next The flow of each flowchart will be described in detail below. First, the monitor program will be described with reference to the flowcharts shown in FIGS.

Reset Routine (FIG. 6) This routine is executed when a reset is applied when the power is turned on. The processing in each step ZA1 and ZA2 is as follows. [ZA1] The statuses of all task numbers in the task management map are set to "1: ready", and the timer processing request flag, the wait event value, and the event occurrence flag are set to "0". In addition, the initialization completion flag
Make the initial settings such as setting IEDF to “0: Incomplete initial settings”. [ZA2] The request source task number NSTK is updated to "1: key data reception task", and the status of the task number "1: key data reception task" in the task management map is set to "0: run". [ZA3] The key data reception task is executed.

Event wait monitor call routine (Fig.
7) This routine is executed when the task under execution makes an event wait monitor call. The processing in each step ZB1 to ZB5 is as follows. [ZB1] For the task number corresponding to the request source task number NSTK in the task management map, one of the event occurrence flags corresponding to the bit that is “1” in the binary representation of the request source event value NSET is “1: event occurrence”. It is determined whether or not it is ". If any of the corresponding event generation flags is "1: event generation", the process returns to the task that made the event wait monitor call. In determining the event occurrence flag, for example, if the request source event value NSET is “1”, the first event occurrence flag, if the request source event value NSET is “2”, the second event occurrence flag, Request source event value NS
When ET is "3", the first and second event occurrence flags are determined. [ZB2] In the determination in step ZB1, when none of the determination target event occurrence flags is “1” and does not indicate the occurrence of an event, the task number corresponding to the request source task number NSTK in the task management map Set the status to "2: wait" and set the wait event value to the request source event value NSET. In addition, interruption processing such as saving the contents of registers in use in the request source task to the stack area in preparation for resumption of processing (hereinafter simply referred to as request source task interruption processing)
I do. [ZB3] Examine the task management map and have a lower priority than the task that made the event wait monitor call, and the corresponding status indicates "1: ready""ready"
Search for tasks in task number order. This status is "1:
If there is no "ready" task indicating "ready", the request source task number NSTK is set to "8" indicating sleep, and sleeps from the timer 27 or a hardware interrupt from the key operation detection circuit. A timer interrupt processing routine or a key data reception interrupt processing routine, which will be described later, is started based on the above [ZB4] When the highest priority "ready" task is found in step ZB3, the request source task number NSTK is assigned the highest priority. The task number of the “ready” task is updated, and the status of the task number of the highest priority “ready” task in the task management map is set to “0: run.” [ZB5] Corresponding to the request source task number NSTK Executes the task.When executing the task, save it in the stack area during task suspension processing. The restart processing (hereinafter simply referred to as the restart processing) such as returning the data etc. to the original register is performed.

Event occurrence monitor call routine (Fig.
8) This routine is executed when the task under execution makes an event occurrence monitor call. The processing in each step ZC1 to ZC7 is as follows. [ZC1] For the task number corresponding to the requested task number NDTK in the task management map, the event occurrence flag corresponding to the bit that is "1" in the binary representation of the requested event value NDET is set to "1". For example,
When the requested event value NDET is "1", the first event occurrence flag is set, and when the requested event value NDET is "2", the second event occurrence flag is set to "1". [ZC2] It is determined whether or not the status of the task number corresponding to the requested task number NDTK in the task management map is "2: wait" and the wait event value corresponds to the requested event value NDET. If the status is not “2: wait” or the wait event value does not correspond to the request destination event value NDET, the task that made this monitor call is returned to. It should be noted that whether or not the wait event value corresponds to the request destination event value NDET is determined by the bit in the binary representation of the request destination event value NDET corresponding to the bit that is "1" in the binary representation of the wait event value. This is performed depending on whether or not any one of the bits is "1". For example, when the wait event value is "1", the first bit of the request destination event value NDET is "1", and when the wait event value is "2", the request destination event value NDET
If the second bit of "1" is "1" and the wait event value is "3", it is determined that the request destination event value NDET corresponds to the first or second bit "1".

[ZC3] In the determination in step ZC2, when the status of the determination target is "2: wait" and the waiting event value corresponds to the requested event value NDET, this status is set to "1: ready". To do. [ZC4] Request destination task number NDTK is the request source task number
Whether or not the priority of the requested task is higher than that of the requested task is determined by whether or not it is less than NSTK. If the request destination task number NDTK is not less than the request source task number NSTK and the priority of the request destination task is not high, the task that made this monitor call is returned to. [ZC5] If it is determined in step ZC4 that the requested task number NDTK is less than the requested task number NSTK and the requested task has a high priority, the status of the task number corresponding to the requested task number NSTK in the task management map. Is set to “1: ready”, and the request source task is interrupted in preparation for the resumption of processing. [ZC6] Request source task number NSTK to request destination task number
While updating to NDTK, the status of the task number corresponding to the requested task number NDTK in the task management map is set to "0: run". [ZC7] The task having the task number corresponding to the requested task number NDTK is executed. When executing a task, the task is restarted.

Timer Interrupt Processing Routine (FIG. 9) When a timer interrupt is issued from the timer 27, the timer counter corresponding to each task is checked first, and if the value of this timer counter exceeds "1", that timer counter is processed. The value of is decremented by "1", and if it does not exceed "1", the first event occurrence flag of the task number of the task in the task management map is set to "1: event occurrence" and this task number When the status of the task is "2: wait", the status is set to "1: ready", and the task with the next highest priority is judged sequentially to determine whether the task should be executed or not. It is a routine that executes the tasks to be satisfied. The processing in each of the steps ZD1 to ZD16 is as follows. [ZD1] It is determined whether or not the initialization completion flag IEDF is "1: initialization completed". If the initialization completion flag IEDF is not "1", the initialization of all tasks has not been completed yet, so the timer interrupt processing is terminated and the processing before the timer interrupt is returned to "1". In this case, since the initial setting of each task, which will be described later, has been completed, the process proceeds to the next step ZD2. [ZD2] The timer interrupt processing target number TCTN indicating the task number of the timer interrupt processing target is set to "7". [ZD3] It is determined whether or not the timer process request flag of the task number corresponding to the timer interrupt process target number TCTN in the task management map is "1: request". If the timer processing request flag is not "1", the process proceeds to step ZD8. [ZD4] In the determination in step ZD3, if the timer processing request flag to be determined is “1: request”, the TCTN task timer counter value TCNE [TCTN]
It is determined whether or not exceeds "1". When the TCTN task timer counter value TCNE [TCTN] exceeds "1", the process proceeds to step ZD10.

[ZD5] If it is determined in step ZD4 that the TCTN task timer counter value TCNE [TCTN] does not exceed "1", first the TCTN task timer counter value TCNE [TCTN] is set to the TCTN task time. Interval TCND [T
CTN] is added, and the added value is set as a new TCTN task timer counter value TCNE [TCTN]. Next, the first event generation flag of the task number corresponding to the timer interrupt processing target number TCTN in the task management map is set to "1: event generation". [ZD6] The status of the task number corresponding to the timer interrupt processing target number TCTN in the task management map is "2: wait", and the first bit in the binary representation of the wait event value of that task number is "1" (for example,
It is determined whether or not the wait event value is "1", "3"). If the status is not "2: wait" or the first bit in the binary representation of the wait event value is not "1", the process proceeds to step ZD8. [ZD7] In the determination in step ZD6, when the status of the determination target is “2: wait” and the first bit in the binary representation of the wait event value of the determination target is “1”, the timer in the task management map Set the status of the task number corresponding to the interrupt processing target number TCTN to "1: ready". [ZD8] It is determined whether the timer interrupt processing target number TCTN exceeds "1". If the timer interrupt processing target number TCTN does not exceed "1", the process of setting the event occurrence flag is completed, and the process proceeds to step ZD11. [ZD9] In the determination in step ZD8, if the timer interrupt processing target number TCTN exceeds "1", the timer interrupt processing target number TCTN is decremented by "1" and the process returns to step ZD3. [ZD10] In the determination in step ZD4,
If the TCTN task timer counter value TCNE [TCTN] exceeds "1", the TCTN task timer counter value TCNE
Decrement [TCTN] by "1" and proceed to step ZD8. [ZD11] It is determined whether or not the timer interrupt processing target number TCTN is less than the request source task number NSTK indicating the processing before the timer interrupt is generated in the routine. If the timer interrupt processing target number TCTN is not less than the request source task number NSTK, the priority of the task being executed when the timer interrupt occurred is not lower than the priority of the task corresponding to the processing target number TCTN. Terminates interrupt processing and returns to the task.

[ZD12] If it is determined in step ZD11 that the timer interrupt processing target number TCTN is less than the request source task number NSTK, the status of the task number corresponding to the timer interrupt processing target number TCTN in the task management map is " 1: determine whether or not it is “ready”. If the status is not "1", the process proceeds to step ZD16. [ZD13] In the determination in step ZD12, if the determination target status is “1: ready”, the request source task number NSTK in the task management map
The status of the task number corresponding to is set to "1: ready", and the task corresponding to the request source task number NSTK is interrupted in preparation for restarting the processing. [ZD14] The request source task number NSTK is updated to the timer interrupt processing target number TCTN, and the status of the task number corresponding to the timer interrupt processing target number TCTN in the task management map is set to "0: run". [ZD15] A timer event is generated. In other words, the task with the task number corresponding to the timer interrupt processing target number TCTN is executed. When executing a task, the task is restarted. [ZD16] In the determination in step ZD12, if the determination target status is not "1: ready", the timer interrupt processing target number TCTN is incremented by "1" and the process returns to step ZD11.

Key data reception interrupt processing routine (see FIG. 1)
0) This routine is executed when a key operation detection circuit is interrupted to generate a key data reception event. The processing in each step ZE1 to ZE6 is as follows. [ZE1] It is determined whether or not the initialization completion flag IEDF is "1: complete". If the initialization completion flag IEDF is not "1", the initialization of all the tasks has not been completed yet, so the key data reception interrupt process is terminated and the process returns to the process before the generation of the key data reception interrupt. [ZE2] If the initial setting completion flag IEDF is "1: complete" in the determination at step ZE1, the first event occurrence flag of the task number "1: key data reception task" in the task management map is "1: occurred". Set to ". [ZE3] It is determined whether or not the status of the task number "1: key data reception task" in the task management map is "2: wait" and the wait event value is "1: wait for key data reception event". If this status is not "2: wait" or the wait event value is not "1: wait for key data reception event",
The key data reception interrupt process is terminated and the process returns to the process before the key data reception interrupt occurred. [ZE4] In the determination in step ZE3, when the determination target status is “2”, the waiting event value is “1”, and the key data reception event is waiting,
In the routine, it is determined whether the request source task number NSTK indicating the processing before the key data reception interrupt is generated is less than “8”. If the request source task number NSTK is less than "8", the status of the task number corresponding to the request source task number NSTK in the task management map is set to "1: ready" and a timer is provided in preparation for restarting the process. Performs interrupt processing of the task before the interrupt occurred. In addition, "8"
If it is not less than, no special processing is required.

[ZE5] The request source task number NSTK is updated to the task number "1: key data receiving task", and the status of the task number "1: key data receiving task" in the task management map is changed to "0: run". Set. [ZE6] Generate a key data reception event. In other words, the key data reception task is executed. When executing the task, the key data receiving task is restarted. Next, each task is a key data receiving task, a main assigner task, a pronunciation task, a pre-assigner task,
The envelope task, the pedal task, and the operator task will be described in this order. In addition, at the time of the first processing in each task after the reset is applied at the time of turning on the power, etc., it starts from the first step, for example, the key data receiving task described below from step A1. Further, when interrupting the processing of a certain task and restarting the processing thereafter, the interrupted processing is restarted so that the processing at the time of interruption in this task is continued. For example, if an event wait monitor call is made in step A2 of the key data reception task and interrupt processing is performed instead of an event occurrence in the judgment in the event wait monitor call routine, then key data reception interrupt occurs and the key data reception When the restart processing is performed in the interrupt routine, the processing is restarted from step A3 following the event waiting monitor call in step A2.

Key data receiving task (FIG. 11) When a key data receiving event occurs, the key data is read from the key operation detecting circuit and an assignment request event is generated. The processing in each of the steps A1 to A7 is as follows. [A1] Clear the note map and set variables and the like occupied by the key data receiving task to initial values. [A2] The request source event value NSET is set to "1" and an event wait monitor call is made. When the key data reception event occurs, the process proceeds to the next step A3. [A3] Task number “1:” in the task management map
The first event occurrence flag and the wait event value of the "key data reception task" are set to "0". [A4] The key data is read from the key operation detection circuit,
The note number, note status and note velocity of this key data corresponds to the note number NTN
M, note status NTST and velocity NTVL. [A5] It is determined whether or not the note status NTST is "1: key depression". This note status NTST is "1"
If not, the process proceeds to the next step A6, and if it is "1", the process proceeds to step A7. [A6] Key Release Process First, the note status of the note number corresponding to the note number NTNM in the note map is set to "0", and the process returns to step A2. [A7] Key Depressing Process First, the note status of the note number corresponding to the note number NTNM in the note map is set to "1". Next, an assign request event is generated. In other words,
Requested task number NDTK is "2: Main assigner task"
Then, the requested event value NDET is set to "1" and an event occurrence monitor call is made. Then, the process returns to step A2.

Main assigner task (Fig. 12) When an assign request event occurs, note number NTNM is written in a predetermined area of the tone generation channel management map based on the assign order set in the pre-assigner task, which will be described later. It is a task that generates a request event. The processing in each of the steps B1 to B7 is as follows. [B1] Clear the tone generation channel management map and set the variables occupied by this main assigner task to initial values. Further, the N-th assigned musical tone generation channel number MASS [N] (N is 0, 1, to 15) is set to each corresponding "N (= 0, 1, to 15)". In addition, the target assignment order TASN is set to "0", and the number of assignable tone generation channels GA
Set CN to the maximum number of "16". [B2] The request source event value NSET is set to "1" and an event wait monitor call is made. When an assign request event occurs, the process proceeds to the next step B3. [B3] Task number “2: in task management map”
The wait event value of the "main assign task" and the first event occurrence flag are set to "0". [B4] It is determined whether or not the target assign order TASN is less than the number of allocatable tone generation channels GACN. Assign order TASN can be assigned Number of tone generation channels GACN
If it is not less than this, the tone generation channel to be assigned is no longer present, and the process returns to step B2. [B5] If the target assignment order TASN is less than the allocatable tone generation channel number GACN in the determination in step B4, the tone generation channel number corresponding to the tone generation channel number MASS [TASN] of the assignment order TASN in the tone generation channel management map. The processing wait flag 1, the processing wait flag 2, and the processing wait flag 3 are set to "1: waiting for processing", the note number to the note number NTNM, the note status to "1", and the velocity to the velocity NTVL. Further, the main assigner processing flag MAEF is set to "1: main assigner processing". [B6] A sounding request event is generated. In other words, the request generation task number NDTK is set to "3: sounding task" and the request destination event value NDET is set to "2" to make an event occurrence monitor call. [B7] The target assignment order TASN is incremented by "1" and the process returns to step B2.

Pronunciation task (FIGS. 13 and 14) A new tone is generated when a tone generation request event occurs. If the previous tone generation is not finished in the tone generation channel, the start of rapid attenuation is instructed (first process). ), And calculates and sets the tone generation parameter based on the note number NTNM and the like (second process), and when the tone generation is completed, or when it is terminated, a new tone generation is instructed to the tone generation channel. (Third processing) This is a task. The processing in steps C1 to C27 is as follows. [C1] The variables occupied by the task are set to initial values, the rapid decay end FIFO storing the tone generation channel number for which rapid decay is finished is cleared, and the tone generation circuit 30 is initialized. Also,
The third task timer counter value TCNE [3] and the third task time interval TCND [3] are set to "0", and the timer processing request flag of the task number "3: sounding task" in the task management map is set to " 1: Requested ”is set. [C2] The request source event value NSET is set to "2" and an event wait monitor call is performed. When a sound generation request event occurs, the process proceeds to the next step C3. [C3] First, the waiting event value of the task number “3: Sounding task” and the second event occurrence flag in the task management map are set to “0”, and then the tone generation target tone generation channel number GCTN is set to “0”. Set to ". [C4] It is determined whether or not the processing wait flag 1 of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is "1: waiting for processing". This processing wait flag 1 is "1"
If it is, the process proceeds to the next step C5, and if it is not "1" and the first process (steps C5 to C7) is unnecessary, the process proceeds to step C8. [C5] It is determined whether or not the envelope level of the envelope channel number corresponding to the tone generation target tone generation channel number GCTN in the envelope management map is "0". If the envelope level is not "0", the process proceeds to the next step C6, and if "0" does not require the rapid attenuation process, the process proceeds to step C7.

[C6] The rapid decay flag of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is set to "1: rapid decay" to indicate that the tone generation amount is rapidly decayed. "FFFF
Set to H "and instruct the corresponding tone generation channel to perform rapid attenuation. When instructing rapid attenuation, set the target value to" 0 "and set the rate to the rapid attenuation rate to generate the corresponding tone. Transfer to the channel [C7] Set the processing wait flag 1 of the tone generation channel number corresponding to the tone generation channel number GCTN of the tone generation channel management map to "0" [C8] Generate the tone processing target tone It is determined whether or not the channel number GCTN is less than “15.” If this tone generation channel number GCTN for musical tone processing is less than “15”, the process proceeds to the next step C9, and is not less than “15”. If the first processing has been completed for all tone generation channels, the process proceeds to step C10 [C9] The tone generation target tone generation channel number GCTN is set to "1". And then returns to step C4 [C10] Sets tone generation target tone generation channel number GCTN to "0" [C11] Sound generation process in tone generation channel management map The processing wait flag 2 of the tone generation channel number corresponding to the target tone generation channel number GCTN is "1: waiting for processing"
Or not. If the processing wait flag 2 is "1", the process proceeds to the next step C12,
If it is not "1" and the second process (step C12) is unnecessary, the process proceeds to step C13. [C12] The values of various parameters relating to the generation of musical tones and the envelope generation of musical tones of the musical tone generation channel corresponding to the musical tone generation channel number GCTN to be pronounced are set to the musical tone generation channel number GCTN to be pronounced in the musical tone generation channel management map The note number and velocity of the corresponding tone generation channel number and the tone color parameter group set in step G4 of the operator data reception task described later are calculated, and the values of the various calculated parameters are set in the tone generation channel management map. Corresponding to the tone generation parameter group of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN and the envelope generation parameter group of the envelope channel number corresponding to the tone generation target tone generation channel number GCTN in the envelope management map To set the parameters. At the same time, the processing wait flag 2 is set to "0".

[C13] It is determined whether or not the tone generation target tone generation channel number GCTN is less than "15". If the tone generation channel number GCTN to be sounded is less than "15", the process proceeds to the next step C14, and is "15".
If it is not less than, it proceeds to step C15. [C14] The tone generation channel number GCTN to be sounded is incremented by "1" and the process returns to step C11. [C15] The rapid-decay incomplete flag TDNF and the tone-generation target tone generation channel number GCTN are set to "0". [C16] The processing wait flag 3 of the tone generation channel number corresponding to the tone generation channel number GCTN to be sounded in the tone generation channel management map is set to "1: waiting for processing".
Or not. When the processing wait flag 3 is "1", the process proceeds to the next step C17,
Not the "1" but the third process (steps C17, C18, C
If step 21) is unnecessary, the process proceeds to step C19. [C17] The rapid decay flag of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is set to "1: rapid decay"
Or not. When the rapid decay flag is not "1", the process proceeds to the next step C18,
If the value is "1", the tone generation of the tone previously assigned in the tone generation channel to be assigned has not been finished yet, so the routine proceeds to step C21.

[C18] Target value, rate, truncation prohibition phase number and integration prohibition phase number of the first phase based on the envelope generation parameter group of the envelope channel number corresponding to the tone generation channel number GCTN to be sounded in the envelope management map Is calculated to set the target value, rate, truncation prohibition phase number and integrated prohibition phase number of the envelope management map to these values, the phase number is set to "1", and the envelope level is set to "0".
Note that the truncate prohibition phase number is set to a period that has a great influence on the performance expression immediately after the start of sounding, for example, the phase number that ends the attack, and the integrated prohibition phase number reduces the change in tone color after that, resulting in a continuous hit-related musical tone. When integrating with the generation channel, set it to the phase number that starts to improve when only the volume is considered. Note that the pronunciation amount of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is set to a value obtained by adding “8000H” to the upper 15 bits of the attack level included in the envelope generation parameter group. Set the truncate prohibition flag to "1: truncate prohibition" and the integration prohibition flag to "1: integration prohibition". Also, the tone generation parameter group of the tone generation channel number GCTN corresponding to the tone generation target tone generation channel number in the tone generation channel management map and the tone generation target tone generation channel number GCTN in the envelope management map
The target value and rate of the envelope channel number corresponding to are transferred to the tone generation channel corresponding to the tone generation target tone generation channel number GCTN in the tone generation circuit 30. In addition, the processing wait flag 3 is set to "0", and the corresponding tone generation channel is instructed to start tone generation. [C19] It is determined whether or not the tone generation channel number GCTN to be sounded is less than "15". If the tone generation target tone generation channel number GCTN is less than "15", the process proceeds to the next step C20, and if it is not less than "15", the process proceeds to step C22. [C20] The tone generation channel number GCTN to be sounded is incremented by "1" and the process returns to step C16. [C21] The rapid decay incomplete flag TDNF is set to "1: incomplete", and the process proceeds to step C19.

[C22] It is determined whether or not the rapid decay incomplete flag TDNF is "1: incomplete". When the rapid decay incomplete flag TDNF is "1", the next step C2
If it is not "1" and all tone generation processing has been completed, the procedure returns to step C2. [C23] The request source event value NSET is set to "3" and an event wait monitor call is performed. When either the sound generation request event or the timer event for the sound generation task occurs, the process proceeds to the next step C24. [C24] The second event occurrence flag of the task number "3: Sounding task" in the task management map is "1".
Or not. When the second event occurrence flag is not "1", the process proceeds to the next step C25,
If it is "1", it means that a sound generation request event has occurred, and therefore the process returns to step C3. [C25] The first event occurrence flag of the task number “3: Sounding task” in the task management map is “1”
Therefore, the wait event value of the task number “3: sounding task” and the first event occurrence flag in the task management map are set to “0”. [C26] It is determined whether or not the rapid attenuation end FIFO provided in the musical sound generating circuit 30 is “empty”. If this rapid decay end FIFO is "empty", step C
23, and if it is not "empty", the next step C27
Proceed to. [C27] The tone generation channel numbers of the tone generation channels whose envelope levels have become “0” by the rapid decay processing are sequentially lowered from the rapid decay end FIFO, and the tone generation channel management map corresponding to the lowered tone generation channel management map The rapid decay flag of the tone generation channel number is set to "0". Then, the process returns to step C15.

Pre-assigner task (FIG. 15) This task starts execution when a timer event corresponding to the pre-assigner task occurs, and updates the assignment order based on the tone generation amount. The processing in each step D1 to D12 is as follows. [D1] The envelope management map is cleared and the variables occupied by this pre-assigner task are set to initial values. Also, the fourth task timer counter value TCNE
[4] is set to “5” and the fourth task time interval TCND [4] is set to “4”
Set to. Further, the timer processing request flag of the task number “4: pre-assigner task” in the task management map is set to “1: request”. [D2] The request source event value NSET is set to "1" and an event wait monitor call is made. When a timer event for the pre-assigner task occurs, the process proceeds to the next step D3. [D3] Task number “4: in task management map”
The wait event value of the "pre-signer task" and the first event occurrence flag are set to "0". [D4] N-th pre-assigned order musical tone generation channel number
Set PASS [N] to the corresponding "N (= 0,1, ... 15)". Here, the Nth preassigned musical tone generation channel number PASS [N] indicates the musical tone generation channel number of the Nth preassigned musical tone generation channel. [D5] The main assigner processing flag MAEF is set to "0". [D6] The tone generation amount of each tone generation channel number of the envelope management map, which is set in steps C6 and C18 of the tone generation task and is updated in step E15 of the envelope task described later, is defined as the tone generation channel number.
GN pre-assigner sound volume PLEV [GN] and sound volume less than "8000H" (in other words, sound sound generation channel that ends attack in so-called ADSR expression and is not in rapid decay)
The number of musical sound generation channels that can be assigned to pre-assigners is defined as PACN.

[D7] The N-th pre-assigned order tone generation channel number PASS [N] is rearranged in the ascending order of the pre-assigner tone generation amount PLEV [GN] of the tone generation channel number GN. For example, the pre-acina pronunciation amount PLEV [GN] is PLEV [3] <PLEV [5]
If the order is <PLEV [2] ..., Nth preassigned musical tone generation channel number PASS [N] is PASS [0] = 3, PASS
[1] = 5, PASS [2] = 2 ... [D8] Lock the task. In other words, the interrupt from the key operation detection circuit and the timer circuit 27 is prohibited.
Execution of other tasks is prohibited until the task lock is released, and the continuation of execution of the task is guaranteed. [D9] It is determined whether or not the main assigner processing flag MAEF is "0: not processing". If this main assigner processing flag MAEF is "0", step D11
Proceed to. [D10] If the main assigner processing flag MAEF is not “0” in the determination of step D9, in other words, the main assigner task is executed by a series of processing based on a new key operation on the keyboard during the processing of steps D6 to D8. Then, since the tone generation mode of the tone generation channel is different from that at the start of step D6, the process returns to step D4 to release the task lock and reset. [D11] First, the N-th pre-assigned tone generation channel number PASS [N] is set to the corresponding N-th assigned tone generation channel number MASS [N], and the target assignment order TASN is set to "0". Also, the number PACN of musical tone generation channels that can be assigned by pre-assigner is the number GACN of musical tone generation channels that can be assigned. [D12] The task lock is released and the process returns to step D2. An interrupt that occurs during task lock is executed after task lock is released.

Envelope task (FIG. 16) Execution starts when a timer event for the task occurs, and the envelope level and sound level of each envelope channel are updated in sequence, and note status, sostenuto status, damper value, and envelope generation parameter are also set. Is a task of calculating a new target value and rate based on the above, and transferring the new target value and rate to the tone generation channel of the tone generation circuit 30. Steps E1 to E16
The processing in is as follows. [E1] A variable occupied by the task is set to an initial value. Further, the fifth task timer counter value TCNE [5] is set to "4" and the fifth task time interval TCND [5] is set to "4". Further, the timer processing request flag of the task number “5: envelope task” in the task management map is set to “1: request”. [E2] Set the request source event value NSET to "1" and make an event wait monitor call. When the envelope task timer event occurs, the process proceeds to the next step E3. [E3] Task number “5: in task management map”
The waiting event value of the "envelope task" and the first event occurrence flag are set to "0" and the envelope processing target number ECTN is set to "0". [E4] Task lock is applied. [E5] Envelope management map It is determined whether the target value of the envelope channel number corresponding to the envelope processing target number ECTN in "0" is "0" and the envelope level is "0". Is "0", the sound generation has ended, so the process proceeds to step E16, and if either is not "0", the process proceeds to step E6. [E6] Envelope processing target number in the tone generation channel management map Determines whether the rapid decay flag of the tone generation channel number corresponding to ECTN is "1: Rapid decay" That. This rapid when the damping flag is not "1", the process proceeds to the next step E7, "1" if it is for an envelope processing is not necessary according to the task, the process proceeds to step E16.

[E7] The envelope level of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map is set to the old envelope level, the envelope level and the rate are added to form a new envelope level, and the phase number is set to "1". ”
And the note number of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map is read as the envelope processing target note number ENNM. [E8] It is determined whether or not the note status of the note number corresponding to the envelope processing target note number ENNM in the note map is "1: key depression". If this note status is not "1", the next step E9
If it is "1", the process proceeds to step E11. [E9] It is determined whether the sostenuto status of the note number corresponding to the envelope processing target note number ENNM in the note map is “1: sostenuto on”. If the sostenuto status is "1", the process proceeds to step E11. [E10] If the sostenuto status is not "1" in the determination at step E9, the key has already been released and the sostenuto pedal has not been depressed as described in step F4 of the pedal task described later, or the sostenuto pedal has not been depressed. Even if the key is depressed, the key is already released when the pedal is depressed, so the envelope process corresponding to the key release is performed. In other words, the target value and rate of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map is calculated and updated based on the damper value DMPV and the envelope generation parameter, and the target value and rate are generated by the tone generation circuit. Transfer to 30 corresponding tone generation channels. Further, when the processing is completed, step E12
Proceed to. [E11] If the note status is "1: key depression" in the judgment of step E8, or if the sostenuto status is "1: sostenuto on" in the judgment of step E9, is it still being depressed? Alternatively, since the sostenuto pedal is depressed even when the key is released and the key is being depressed when the pedal is depressed, the envelope processing corresponding to the key depression is performed. In other words, the target value and rate of the envelope channel number corresponding to the target number ECTN of the envelope processing in the envelope management map are calculated and updated based on the damper value and the envelope generation parameter that have the maximum value. It is transferred to the corresponding tone generation channel of the tone generation circuit 30.

[E12] It is determined whether the phase number of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map exceeds the truncation prohibition phase number. If this phase number does not exceed the truncate prohibition phase number, the process proceeds to step E16, and the tone generation amount is not updated. If the phase number exceeds the truncate prohibition phase number, the process proceeds to step E13. [E13], [E14] It is determined whether or not the phase number of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map exceeds the integrated prohibition phase number, and this phase number indicates the integrated prohibition phase number. If it exceeds, the envelope processing target number EC in the tone generation channel management map
The integration prohibition flag of the tone generation channel number corresponding to TN is set to "0". [E15] The tone generation amount of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map is set to the upper 15 bits of the envelope level, and the truncation prohibition flag is set to "0". [E16] The task lock is released. [E17] Envelope processing target number ECTN is "15"
It is determined whether it is less than. If the envelope processing target number ECTN is not less than "15", step E
Proceed to 17. [E18] The envelope processing target number ECTN is incremented by "1" and the process returns to step E4. [E19] Perform continuous tap sound integration processing. The details of this processing will be described later in detail with reference to the flowchart of FIG. When the process is completed, the process returns to step E2.

Sequential Striking Sound Integration Process (FIG. 17) This process integrates sounds that have a continuous striking relationship. The processing in steps E1901 to E1919 is as follows. [E1901] The envelope processing target number ECTN is set to "0" and the task is locked. [E1902] Envelope processing target number ECTN is "1"
It is determined whether or not it is less than 4 ". If it is not less than" 14 ", the envelope integration processing has ended, so the task lock is released and the process returns to step E2. [E1903] Envelope processing target number ECTN in the envelope management map It is determined whether the target value of the corresponding envelope channel number is “0” and the envelope level is “0.” When the target value is “0” and the envelope level is “0”, The process proceeds to step E1904, and if either is not "0", the sound generation has not ended, so the process proceeds to step E1905. [E1904] The envelope processing target number ECTN is incremented by "1" and the process returns to step E1902. E1905] The music corresponding to the envelope processing target number ECTN in the tone generation channel management map Rapid decay flag generation channel number.: Determines whether or not "1 during a fast decay""1" when it is being rapidly attenuated in order envelope integration processing is not required step E190
4. If it is not "1", go to the next step E190.
Go to 6.

[E1906] It is determined whether or not the integration inhibition flag of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map is “1: integration inhibition”. If the value is "1", the integration is prohibited, so the process proceeds to step E1904. If the value is not "1", the process proceeds to step E1907. [E1907] The integrated comparison target number FCTN is set to a value obtained by adding “1” to the envelope processing target number ECTN. [E1908] The note number of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map and the note number in the tone generation channel number of the tone generation channel management map corresponding to the integrated comparison target number FCTN are the same. Determine if there is.
If they are not the same, the process proceeds to the next step E1909, and if they are the same, the process proceeds to step E1911. [E1909] It is determined whether the integrated comparison target number FCTN is less than “15”. If it is less than "15", the process proceeds to the next step E1910, and if it is not less than "15", the process proceeds to step E1904. [E1910] The integrated comparison number FCTN is incremented by "1", and the process returns to step E1908. [E1911] It is determined whether the target value of the envelope channel number corresponding to the integrated comparison target number FCTN in the envelope management map is “0” and the envelope level is “0”. When the target value is "0" and the envelope level is "0", the sound generation has ended, so the process proceeds to step E1909, and if either is not "0", the process proceeds to next step E1912.

[E1912] The rapid decay flag of the tone generation channel number corresponding to the integrated comparison target number FCTN in the tone generation channel management map is set to “1: rapid decay”.
Or not. If it is "1", the process proceeds to step E1909, and if it is not "1", the process proceeds to next step E1913. [E1913] It is determined whether the integration inhibition flag of the tone generation channel number corresponding to the integrated comparison target number FCTN in the tone generation channel management map is “1: integration prohibited”. If it is "1", the integration is still prohibited, so the process proceeds to step E1909, and if it is not "1", the process proceeds to next step E1914. [E1914] The target value of the envelope channel number corresponding to the envelope processing target number ECTN and the target value of the envelope channel number corresponding to the integrated comparison target number FCTN in the envelope management map are read out and added to obtain the integrated target value TDLV. That is, the volume is set so as not to change due to the integration. [E1915] It is determined whether the integrated target value TDLV exceeds “FFFFH”. If not exceeded, the process proceeds to the next step E1916, and if it is exceeded, the integration cannot be performed, so the process proceeds to step E1904. [E1916] The envelope level of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map is set as the integration target envelope level ELEV, and the envelope level of the envelope channel number corresponding to the integration comparison target number FCTN is integrated comparison target envelope level FLEV. At the same time, the integration target envelope level ELEV and the integration comparison target envelope level FLEV are added to obtain the integration envelope level TLEV. [E1917] It is determined whether the integration target envelope level ELEV is less than the integration comparison target envelope level FLEV. If it is less than, it proceeds to step E1919, and if it is not less, it proceeds to next step E1918.

[E1918] The envelope level of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map is changed to the integrated envelope level TLEV, and the target value is set to the integrated target value TDLV.
, The envelope generation parameter is also changed correspondingly, the rate is set to a value obtained by subtracting the old envelope level from the integrated target value TDLV, and the target value and rate are transferred to the corresponding tone generation channel. Further, the tone generation amount of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map is updated to the upper 15 bits of the integrated envelope level TLEV.
Integrated comparison number FCTN in envelope management map
The rate of the envelope channel number corresponding to is set to the value of the envelope level, the target value is set to "0", and the target value and rate are transferred to the corresponding tone generation channel. The integration inhibition flag of the tone generation channel number corresponding to the integrated comparison target number FCTN in the tone generation channel management map is set to "1: integration prohibited", and the tone generation amount is set to "0". Then, the process proceeds to step E1904. [E1919] The envelope level of the envelope channel number corresponding to the integrated comparison target number FCTN in the envelope management map is changed to the integrated envelope level TLEV, the target value is changed to the integrated target value TDLV, and the envelope generation parameter is also changed correspondingly. Then, the rate is set to a value obtained by subtracting the old envelope level from the integrated target value TDLV, and the target value and rate are transferred to the corresponding tone generation channel. The tone generation amount of the tone generation channel number corresponding to the integrated comparison target number FCTN in the tone generation channel management map is set to the top 15 of the integrated envelope level TLEV.
Update to a bit. The rate of the envelope channel number corresponding to the envelope processing target number ECTN in the envelope management map is set to the value of the envelope level, the target value is set to "0", and the target value and rate are transferred to the corresponding tone generation channel. The integration prohibition flag of the tone generation channel number corresponding to the envelope processing target number ECTN in the tone generation channel management map is set to "1:
The sound generation amount is set to "0" in "integration prohibited", and the process proceeds to step E1904.

Pedal task This task starts execution when a timer event for the task occurs and detects the setting state of pedals such as damper pedals and sostenuto pedals. Since this is a known technique, only the essential points will be described. Each step F1
The processing from F4 to F4 is as follows. [F1] First, a new pedal map that stores a new pedal setting state for each pedal, an old pedal map that stores the previous pedal setting state for each pedal, and variables that are occupied by the task are initialized. Set to. Next, the sixth task timer counter value TCNE [6] is set to "11" and the sixth task time interval TCND [6] is set to "9". Further, the timer processing request flag of the task number “6: Pedal task” in the task management map is set to “1”. [F2] Set the request source event value NSET to "1",
Make an event wait monitor call. When a pedal task timer event occurs, the process proceeds to the next step F3. [F3] Task number “6: in task management map”
The waiting event value of the "pedal task" and the first event occurrence flag are set to "0". [F4] Based on a known technique, each pedal is scanned in a predetermined sequence to read the setting state, and whether the setting state has changed. If there is a change, the corresponding process is performed.For example, if the setting state of the damper pedal has changed, the stepping amount of the new damper is set as the damper value DMPV.
When the sostenuto pedal is depressed, the sostenuto status of each note number in the note map is updated to be the same as the corresponding note status. Further, when the sostenuto pedal is returned, the sostenuto status of each note number in the note map is set to "0". When there is no change or when the corresponding process is completed, the process returns to step F2.

Manipulator task (FIG. 18) This task starts execution when a timer event for the task occurs, and detects the setting state of the manipulator group 23 for selecting a tone color or setting parameters relating to a tone color. Since this is a known technique, only the essential points will be described. The processing in each step G1 to G4 is as follows. [G1] First, a new manipulator map that stores a new manipulator setting state for each manipulator, an old manipulator map that stores the previous manipulator setting state for each manipulator, and an operator manipulator Various parameters that are set correspondingly and variables that are occupied by this operator task are set to initial values. Next, the seventh task timer counter value TCNE [7] is set to “12” and the seventh
Set task time interval TCND [7] to "9". further,
The timer processing request flag of the task number “7: operator task” in the task management map is set to “1”. [G2] The request source event value NSET is set to "1", the initialization completion flag is set to "1", and an event wait monitor call is performed. When an operator task timer event occurs, the process proceeds to the next step G3. [G3] Task number “7: in task management map”
The waiting event value of the "operator task" and the first event occurrence flag are set to "0". [G4] Based on a known technique, each operator is scanned in a predetermined sequence to read the setting state and change to the setting state. If there is a change, the corresponding processing is performed. For example, when the timbre number is changed, the timbre parameter group is changed. When there is no change or when the corresponding processing is finished Returns to step G2.

Next, the overall operation of the above-described embodiment will be described. (1) When the initialization power is turned on, after the processing by the monitor program reset routine ZA (steps ZA1 to ZA3), the key data receiving task (routine A), the main assigner task (routine B), the sounding task (routine C) , Pre-assigner task (routine D), envelope task (routine E), pedal task (routine F) and manipulator task (routine G) are initialized in sequence according to task priority (steps A1, A).
2, steps B1 and B2, steps C1 and C2, steps D1 and D2, steps E1 and E2, steps F1 and F
2, steps G1, G2). (2) Sound Generation Processing by Received Key Data When a key on the keyboard is operated and an interrupt occurs from the key operation detection circuit, the key data reception interrupt processing routine ZE of the monitor program is started. (2-1) Since the key data reception interrupt processing routine ZE is in the state of waiting for the key data reception event (steps ZE1 and ZE3), the status of the task number "1: key data reception task" in the task management map is set. Set to "0: run" (step ZE5).
Next, the key data reception task is executed (step A2
~ A7), read the key data from the key operation detection circuit,
The note map is updated based on this key data, and if the note is on, an event occurrence monitor call is made (step A7). (2-2) In the event generation monitor call routine ZC of the monitor program, the first event generation flag of the task number “2: Main Assigner Task” in the task management map is set to “1” (step Z
C1), the status is set to "1: ready" (steps ZC2 and ZC3). Since the task priority of the key data reception task is higher than the task priority of the main assigner task, the key data reception task is restarted (step ZC4), and an event wait monitor call is made in this key data reception task. (Step A
2). (2-3) In the event waiting monitor call routine ZB of the monitor program, it is checked whether or not a key data reception event has occurred (step ZB1). As a result of this examination, since the next key data reception event has not occurred yet, the status of the task number "1: key data reception task" in the task management map is set to "2: wait" (step ZB2). , Check the task management map (step ZB3). As a result of checking this task management map, since the task number of the highest priority task whose status is "1: ready" is "2: main assigner task", this task number "2: main assigner task" The status is set to "0: run" (step ZB4), and the main assigner task is executed (step ZB5). In this main assigner task, note numbers NTNM and the like are written in the tone generation channel management map (steps B2 to B5). Next, an event occurrence monitor call is made (step B6).

(2-4) In the event generation monitor call routine ZC of the monitor program, the second event generation flag of the task number "3: sounding task" in the task management map is set to "1" and the status is set to "1". : Ready ”. Since the task priority of the main assigner task is higher than the task priority of the pronunciation task, the main assigner task is restarted and the target assign order is incremented by "1" in this main assigner task. (Step B7), and an event waiting monitor call is made (step B2). (2-5) It is checked whether or not an assign request event has occurred in the monitor call event waiting monitor call routine ZB of the monitor program. As a result of this examination, since the next assignment request event has not yet occurred, the task number in the task management map "2: Main assigner task" is set to "2: Wait" and the task management map is examined. . As a result of checking this task management map, the task number of the task number "3: sounding task" is "0: because the task number of the highest priority task whose status is" 1: ready "is" 3: sounding task ". Set to "Run" to perform the pronunciation task. In this tone generation task, various parameters relating to tone generation are calculated and set based on the note number NTNM written in the tone generation channel management map, and the start of tone generation is instructed (steps C2-C27). Next, an event wait monitor call is made (step C2). (2-6) It is checked whether or not a sounding request event has occurred in the monitor call event waiting monitor call routine ZB of the monitor program. As a result of this examination, since the next pronunciation request event has not yet occurred, the task number “3: Sound task” in the task management map is set to “2: Wait” and the task management map is examined. As a result of checking this task management map, if the statuses of all task numbers are "2: wait", the task sleeps.

(3) When the corresponding timer event occurs, the pre-signer task (routine D) updates the assignment order based on the tone generation amount of the tone generation channel management map (steps D2 to D12). Next, an event wait monitor call is made (step D2). (4) When the corresponding timer event occurs, the envelope task (routine E) generates the tone generation amount and envelope management map of the tone generation channel management map based on the note status, pedal data, tone generation channel management map and envelope management map. Update the envelope level etc. (steps E2-E1)
9). Next, an event wait monitor call is made (step E2).

As described above, in the present embodiment, the musical tone generation channels having the continuous hitting relation are integrated so that they can be integrated into almost the same tone color after a predetermined time has elapsed after the start of the sound generation. For example, when two tone generation channels having a continuous hitting relationship can be integrated, the sound generation of the tone generation channel having a smaller sound is terminated and the other tone generation channel having the larger sound is generated. Cause It should be noted that a plurality of integration prohibition conditions may be provided to integrate the tone generation channels within the same or adjacent integration prohibition conditions. When integrating with the tone generation channels of different integration prohibition conditions, weighting may be performed according to the integration prohibition conditions so as to reduce the uncomfortable feeling in hearing. Further, when the tone generation channels for which integration is prohibited are released for allocation of new musical sounds, weighting may be performed according to the integration prohibition condition so as to reduce the feeling of strangeness in hearing. Further, the integration prohibition condition may be changed based on the pronunciation allocation situation, for example, the number of tone generation channels that have finished the tone generation or the number of tone generation channels whose envelope level is below a predetermined level. In the present embodiment, it has been determined that there is a continuous hitting relationship if they have the same pitch, but if one musical tone is composed of a plurality of partial sounds, etc., it may be the same pitch and the same partial sounds. If so, it may be determined that they have a continuous hitting relationship. Further, it may be applied to a multitimba electronic musical instrument. In this case, the judgment condition of the continuous hitting relation includes that it is the same part, but if necessary, the related part may be included.

It is also possible to carry out so-called continuous hitting processing to reduce the assigning order of the tone generation channels that are in a continuous hitting relationship. For example, after the processing of step D6 of the pre-assigner task is completed, a tone-generating channel in a continuous hitting relationship that produces musical tones with the same pitch in the same part is detected, and the pre-assigner pronunciation amount PLEV [GN] of the tone-generating channel number GN is detected. Is changed as follows, and the process proceeds to step D7. Note status is in continuous hit relationship with note-on tone generation channel Note status is in note-off tone generation channel Music tone generation channel Pre-assigner sound volume of channel number GN PLEV [GN] is set to 1/10, all tone sounds If the note status of the generation channel is Note Off, the pre-assigner pronunciation amount PLEV [GN] of the tone generation channel number GN of the tone generation channels of the tone generation channels that are related to repeated hits excluding the pre-assigner pronunciation amount PLEV [GN] of the largest tone generation channel number GN Change to 1/10. In this embodiment, an example of multitask processing is shown, but single task processing may be used. Further, although the assign order is set in advance and the pre-assign process is performed according to the set assign order, the general process of selecting the tone generation channel to which a new tone is assigned each time the note-on information is received may be used. The present invention is, in addition to an electronic musical instrument having a keyboard portion, a so-called musical tone generating device that generates musical tones based on performance information received from another electronic musical instrument having no keyboard portion, such as an automatic musical instrument, or an automatic rhythm. Can also be applied to.

[0067]

As described above, according to the present invention, it is possible to reduce the occurrence of a feeling of strangeness in performance expression when a musical tone that is repeatedly input is pronounced.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an electronic musical instrument to which a continuous striking processing apparatus as an embodiment of the present invention is applied.

FIG. 2 is a diagram showing a note map.

FIG. 3 is a diagram showing an envelope management map.

FIG. 4 is a diagram showing a task management map.

FIG. 5 is a diagram showing a tone generation channel management map.

FIG. 6 is a flowchart showing a reset routine.

FIG. 7 is a flowchart showing an event wait monitor call routine.

FIG. 8 is a flowchart showing an event occurrence monitor call routine.

FIG. 9 is a flowchart showing a timer interrupt processing routine.

FIG. 10 is a flowchart showing a key data reception interrupt processing routine.

FIG. 11 is a flowchart showing a key data reception task.

FIG. 12 is a flowchart showing a main assigner task.

FIG. 13 is a flowchart showing half of the pronunciation task.

FIG. 14 is a flowchart showing the other half of the pronunciation task.

FIG. 15 is a flowchart showing a pre-assigner task.

FIG. 16 is a flowchart showing an envelope task.

FIG. 17 is a flow chart showing a continuous tapping sound integration processing routine.

FIG. 18 is a flowchart showing an operator task.

[Explanation of symbols]

20 keyboard 21 bus 22 Central Processing Unit (CPU) 23 Operator group 24 pedals 25 ROM (read-only memory) 26 RAM (random access memory) 27 timers 28 Operator detection circuit 29 Pedal detection circuit 30 tone generation circuit 31 Amplifier 32 speakers

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[Procedure amendment]

[Submission date] November 5, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

Reset Routine (FIG. 6) This routine is executed when a reset is applied when the power is turned on. The processing in each step ZA1 to ZA3 is as follows. [ZA1] The statuses of all task numbers in the task management map are set to "1: ready", and the timer processing request flag, the wait event value, and the event occurrence flag are set to "0". In addition, the initialization completion flag
Make the initial settings such as setting IEDF to “0: Incomplete initial settings”. [ZA2] The request source task number NSTK is updated to "1: key data reception task", and the status of the task number "1: key data reception task" in the task management map is set to "0: run". [ZA3] The key data reception task is executed.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction content]

Key data receiving task (FIG. 11) When a key data receiving event occurs, the key data is read from the key operation detecting circuit and an assignment request event is generated. The processing in each of the steps A1 to A7 is as follows. [A1] Clear the note map and set variables and the like occupied by the key data receiving task to initial values. [A2] The request source event value NSET is set to "1" and an event wait monitor call is made. When the key data reception event occurs, the process proceeds to the next step A3. [A3] Task number “1:” in the task management map
Set the first event occurrence flag of "Key data reception task"
Set the wait event value to "0" and "0". [A4] Read the key data from the key operation detection circuit,
The note number, note status and note velocity of this key data corresponds to the note number NTN
M, note status NTST and velocity NTVL. [A5] It is determined whether or not the note status NTST is "1: key depression". This note status NTST is "1"
If not, the process proceeds to the next step A6, and if it is "1", the process proceeds to step A7. [A6] Key Release Process First, the note status of the note number corresponding to the note number NTNM in the note map is set to "0", and the process returns to step A2. [A7] Key Depressing Process First, the note status of the note number corresponding to the note number NTNM in the note map is set to "1". Next, an assign request event is generated. In other words,
Requested task number NDTK is "2: Main assigner task"
Then, the requested event value NDET is set to "1" and an event occurrence monitor call is made. Then, the process returns to step A2.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

Main assigner task (Fig. 12) When an assign request event occurs, note number NTNM is written in a predetermined area of the tone generation channel management map based on the assign order set in the pre-assigner task, which will be described later. It is a task that generates a request event. The processing in each of the steps B1 to B7 is as follows. [B1] Clear the tone generation channel management map and set the variables occupied by this main assigner task to initial values. Further, the N-th assigned musical tone generation channel number MASS [N] (N is 0, 1, to 15) is set to each corresponding "N (= 0, 1, to 15)". In addition, the target assignment order TASN is set to "0", and the number of assignable tone generation channels GA
Set CN to the maximum number of "16". [B2] The request source event value NSET is set to "1" and an event wait monitor call is made. When an assign request event occurs, the process proceeds to the next step B3. [B3] Task number “2: in task management map”
Set the wait event value of " main assigned task" to "0",
The first event occurrence flag is set to "0". [B4] It is determined whether or not the target assignment order TASN is less than the number of allocatable musical sound generation channels GACN. This target assignment order TASN can be assigned Number of musical sound generation channels GACN
If it is not less than this, the tone generation channel to be assigned is no longer present, and the process returns to step B2. [B5] If the target assignment order TASN is less than the allocatable tone generation channel number GACN in the determination in step B4, the tone generation channel number corresponding to the tone generation channel number MASS [TASN] of the assignment order TASN in the tone generation channel management map. The processing wait flag 1, the processing wait flag 2, and the processing wait flag 3 are set to "1: waiting for processing", the note number to the note number NTNM, the note status to "1", and the velocity to the velocity NTVL. Further, the main assigner processing flag MAEF is set to "1: main assigner processing". [B6] A sounding request event is generated. In other words, the request generation task number NDTK is set to "3: sounding task" and the request destination event value NDET is set to "2" to make an event occurrence monitor call. [B7] The target assignment order TASN is incremented by "1" and the process returns to step B2.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

Pronunciation task (FIGS. 13 and 14) A new tone is generated when a tone generation request event occurs. If the previous tone generation is not finished in the tone generation channel, the start of rapid attenuation is instructed (first process). ), And calculates and sets the tone generation parameter based on the note number NTNM and the like (second process), and when the tone generation is completed, or when it is terminated, a new tone generation is instructed to the tone generation channel. (Third processing) This is a task. The processing in steps C1 to C27 is as follows. [C1] The variables occupied by the task are set to initial values, the rapid decay end FIFO storing the tone generation channel number for which rapid decay is finished is cleared, and the tone generation circuit 30 is initialized. Also,
The third task timer counter value TCNE [3] and the third task time interval TCND [3] are set to "0", and the timer processing request flag of the task number "3: sounding task" in the task management map is set to " 1: Requested ”is set. [C2] The request source event value NSET is set to "2" and an event wait monitor call is performed. When a sound generation request event occurs, the process proceeds to the next step C3. [C3] First, the wait event value of the task number "3: sounding task" in the task management map is set to "0", and the second
The event generation flag is set to "0", and then the tone generation target tone generation channel number GCTN is set to "0". [C4] It is determined whether or not the processing wait flag 1 of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is "1: waiting for processing". This processing wait flag 1 is "1"
If it is, the process proceeds to the next step C5, and if it is not "1" and the first process (steps C5 to C7) is unnecessary, the process proceeds to step C8. [C5] It is determined whether or not the envelope level of the envelope channel number corresponding to the tone generation target tone generation channel number GCTN in the envelope management map is "0". If the envelope level is not "0", the process proceeds to the next step C6, and if "0" does not require the rapid attenuation process, the process proceeds to step C7.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction content]

[C6] The rapid decay flag of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is set to "1: rapid decay" to indicate that the tone generation amount is rapidly decayed. "FFFF
Set to H "and instruct the corresponding tone generation channel to perform rapid attenuation. When instructing rapid attenuation, set the target value to" 0 "and set the rate to the rapid attenuation rate to generate the corresponding tone. Transfer to the channel [C7] Set the processing wait flag 1 of the tone generation channel number corresponding to the tone generation channel number GCTN of the tone generation channel management map to " 0". It is determined whether or not the channel number GCTN is less than “15.” If this tone generation channel number GCTN for musical tone processing is less than “15”, the process proceeds to the next step C9, and is not less than “15”. If the first processing has been completed for all tone generation channels, the process proceeds to step C10 [C9] The tone generation target tone generation channel number GCTN is set to "1". And prepares for the processing of the next tone generation channel and returns to step C4 [C10] Sets the tone generation target tone generation channel number GCTN to "0" [C11] Sound generation process in the tone generation channel management map The processing wait flag 2 of the tone generation channel number corresponding to the target tone generation channel number GCTN is "1: waiting for processing"
Or not. If the processing wait flag 2 is "1", the process proceeds to the next step C12,
If it is not "1" and the second process (step C12) is unnecessary, the process proceeds to step C13. [C12] The values of various parameters relating to the generation of musical tones and the envelope generation of musical tones of the musical tone generation channel corresponding to the musical tone generation channel number GCTN to be pronounced are set to the musical tone generation channel number GCTN to be pronounced in the musical tone generation channel management map The note number and velocity of the corresponding tone generation channel number and the tone color parameter group set in step G4 of the operator data reception task described later are calculated, and the values of the various calculated parameters are set in the tone generation channel management map. Corresponding to the tone generation parameter group of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN and the envelope generation parameter group of the envelope channel number corresponding to the tone generation target tone generation channel number GCTN in the envelope management map To set the parameters. At the same time, the processing wait flag 2 is set to " 0".

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction content]

[C13] It is determined whether or not the tone generation target tone generation channel number GCTN is less than "15". If the tone generation channel number GCTN to be sounded is less than "15", the process proceeds to the next step C14, and is "15".
If it is not less than, it proceeds to step C15. [C14] The tone generation channel number GCTN to be sounded is incremented by "1" and the process returns to step C11. [C15] The rapid attenuation incomplete flag TDNF is set to "0", and the tone generation target tone generation channel number GCTN is set to "0". [C16] The processing wait flag 3 of the tone generation channel number corresponding to the tone generation channel number GCTN to be sounded in the tone generation channel management map is set to "1: waiting for processing".
Or not. When the processing wait flag 3 is "1", the process proceeds to the next step C17,
Not the "1" but the third process (steps C17, C18, C
If step 21) is unnecessary, the process proceeds to step C19. [C17] The rapid decay flag of the tone generation channel number corresponding to the tone generation target tone generation channel number GCTN in the tone generation channel management map is set to "1: rapid decay"
Or not. When the rapid decay flag is not "1", the process proceeds to the next step C18,
If the value is "1", the tone generation of the tone previously assigned in the tone generation channel to be assigned has not been finished yet, so the routine proceeds to step C21.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

[C22] It is determined whether or not the rapid decay incomplete flag TDNF is "1: incomplete". When the rapid decay incomplete flag TDNF is "1", the next step C2
If it is not "1" and all tone generation processing has been completed, the procedure returns to step C2. [C23] The request source event value NSET is set to "3" and an event wait monitor call is performed. When either the sound generation request event or the timer event for the sound generation task occurs, the process proceeds to the next step C24. [C24] The second event occurrence flag of the task number "3: Sounding task" in the task management map is "1".
Or not. When the second event occurrence flag is not "1", the process proceeds to the next step C25,
If it is "1", it means that a sound generation request event has occurred, and therefore the process returns to step C3. [C25] The first event occurrence flag of the task number “3: Sounding task” in the task management map is “1”
For the occurrence of a timer event is, the task number in task management map: wait event value of "3 pronunciation task""0", the first event occurrence flag "0"
Set to. [C26] It is determined whether or not the rapid attenuation end FIFO provided in the musical sound generating circuit 30 is “empty”. If this rapid decay end FIFO is "empty", step C
23, and if it is not "empty", the next step C27
Proceed to. [C27] The tone generation channel numbers of the tone generation channels whose envelope levels have become “0” by the rapid decay processing are sequentially lowered from the rapid decay end FIFO, and the tone generation channel management map corresponding to the lowered tone generation channel management map The rapid decay flag of the tone generation channel number is set to "0". Then, the process returns to step C15.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction content]

Pre-assigner task (FIG. 15) This task starts execution when a timer event corresponding to the pre-assigner task occurs, and updates the assignment order based on the tone generation amount. The processing in each step D1 to D12 is as follows. [D1] The envelope management map is cleared and the variables occupied by this pre-assigner task are set to initial values. Also, the fourth task timer counter value TCNE
[4] is set to “5” and the fourth task time interval TCND [4] is set to “4”
Set to. Further, the timer processing request flag of the task number “4: pre-assigner task” in the task management map is set to “1: request”. [D2] The request source event value NSET is set to "1" and an event wait monitor call is made. When a timer event for the pre-assigner task occurs, the process proceeds to the next step D3. [D3] Task number “4: in task management map”
Set the waiting event value of “ Prior Signer Task” to “0”
The 1-event occurrence flag is set to "0". [D4] N-th pre-assigned order tone generation channel number
Set PASS [N] to the corresponding "N (= 0,1, ... 15)". Here, the Nth preassigned musical tone generation channel number PASS [N] indicates the musical tone generation channel number of the Nth preassigned musical tone generation channel. [D5] The main assigner processing flag MAEF is set to "0". [D6] musical tone-generating channel management map of where it is set in step C6, C18 pronunciation task is updated in <br/> such step E15 envelope tasks as described
Pronunciation of each musical tone-generating channel number-flop, with the Puriasaina sound volume PLEV tone generating channel number GN [GN], in other words the tone-generating channel sound volume is less than "8000H" (, attack in a so-called ADSR representation The number of musical sound generation channels that have ended and are not being rapidly attenuated) is determined, and the number of musical sound generation channels that can be assigned by the pre-assigner is defined as PACN.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Change

[Correction content]

Envelope task (FIG. 16) Execution starts when a timer event for the task occurs, and the envelope level and sound level of each envelope channel are updated in sequence, and note status, sostenuto status, damper value, and envelope generation parameter are also set. Is a task of calculating a new target value and rate based on the above, and transferring the new target value and rate to the tone generation channel of the tone generation circuit 30. Steps E1 to E16
The processing in is as follows. [E1] A variable occupied by the task is set to an initial value. Further, the fifth task timer counter value TCNE [5] is set to "4" and the fifth task time interval TCND [5] is set to "4". Further, the timer processing request flag of the task number “5: envelope task” in the task management map is set to “1: request”. [E2] Set the request source event value NSET to "1" and make an event wait monitor call. When the envelope task timer event occurs, the process proceeds to the next step E3. [E3] Task number “5: in task management map”
"Wait event value of" envelope task "in the first event occurrence flag" 0 "and sets, the envelope processing target number ECTN" 0 is set to 0 ". [E4] make a task lock. [ E5] Envelope in the tone generation channel management map
The tone generation channel number corresponding to the rope processing target number ECTN
Whether the rapid decay flag of the issue is "1: Rapid decay in progress"
To judge. If this rapid decay flag is not "1"
If it is “1”, go to the next step E6
Since envelope processing by the task is not required,
Continue to Step E16. [E6] Envelope in envelope management map
Envelope channel number corresponding to the processing target number ECTN
The target value of the signal is "0" and its envelope level is
It is determined whether the rule is “0”. This target value is
When the envelope level is "0" and "0"
Is a tone generation channel management
Group corresponding to the target number ECTN for envelope processing
Truncate the sound generation channel number to "0"
Set the prohibition flag to "0" and proceed to step E16.
If the deviation is not "0", proceed to the next step E7.
Mu.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0060

[Correction method] Change

[Correction content]

Pedal task This task starts execution when a timer event for the task occurs and detects the setting state of pedals such as damper pedals and sostenuto pedals. Since this is a known technique, only the essential points will be described. Each step F1
The processing from F4 to F4 is as follows. [F1] First, a new pedal map that stores a new pedal setting state for each pedal, an old pedal map that stores the previous pedal setting state for each pedal, and variables that are occupied by the task are initialized. Set to. Next, the sixth task timer counter value TCNE [6] is set to "11" and the sixth task time interval TCND [6] is set to "9". Further, the timer processing request flag of the task number “6: Pedal task” in the task management map is set to “1”. [F2] Set the request source event value NSET to "1",
Make an event wait monitor call. When a pedal task timer event occurs, the process proceeds to the next step F3. [F3] Task number “6: in task management map”
Set the wait event value of " Pedal task" to "0"
The event generation flag is set to "0". [F4] Based on a known technique, each pedal is scanned in a predetermined sequence to read the setting state, it is determined whether or not there is a change in the setting state, and if there is a change, a corresponding process is performed. For example, if the setting state of the damper pedal has changed, the stepping amount of the new damper is set as the damper value DMPV. Also,
When the sostenuto pedal is depressed, the sostenuto status of each note number in the note map is updated to be the same as the corresponding note status. Further, when the sostenuto pedal is returned, the sostenuto status of each note number in the note map is set to "0". When there is no change or when the corresponding process is completed, the process returns to step F2.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0061

[Correction method] Change

[Correction content]

Manipulator task (FIG. 18) This task starts execution when a timer event for the task occurs, and detects the setting state of the manipulator group 23 for selecting a tone color or setting parameters relating to a tone color. Since this is a known technique, only the essential points will be described. The processing in each step G1 to G4 is as follows. [G1] First, a new manipulator map that stores a new manipulator setting state for each manipulator, an old manipulator map that stores the previous manipulator setting state for each manipulator, and an operator manipulator Various parameters that are set correspondingly and variables that are occupied by this operator task are set to initial values. Next, the seventh task timer counter value TCNE [7] is set to “12” and the seventh
Set task time interval TCND [7] to "9". further,
The timer processing request flag of the task number “7: operator task” in the task management map is set to “1”. [G2] The request source event value NSET is set to "1", the initialization completion flag is set to "1", and an event wait monitor call is performed. When an operator task timer event occurs, the process proceeds to the next step G3. [G3] Task number “7: in task management map”
The wait event value of the " operator task" is set to "0", and the first event
The event generation flag is set to "0". [G4] Based on a known technique, each operator is scanned in a predetermined sequence to read the setting state, it is determined whether or not the setting state has changed, and if there is a change, a corresponding process is performed. For example, when the tone color number is changed, the tone color parameter group is changed. When there is no change or when the corresponding process is completed, the process returns to step G2.

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

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[Figure 9]

[Procedure Amendment 13]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 16

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FIG. 16

Claims (2)

[Claims] 1. A continuous-strike processing device for processing a continuous-stroke input to an electronic musical instrument having a plurality of musical-tone generating channels, which is in a continuous-stroke relationship among the musical-tone generating channels being sounded, and its pronunciations are integrated. Detecting means for detecting two or more tone generation channels in a state in which the above-mentioned other tone generation channels are integrated with one of the two or more tone generation channels detected by the detection means. Continuous processing device for an electronic musical instrument, which comprises an integration means for stopping the sound generation of the musical tone generation channel. 2. The detection means is configured to determine an integrable state by checking a tone generation amount of a tone generation channel, a value corresponding to the tone generation amount, or an elapsed time from the start of tone generation. Electronic musical instrument continuous tap processing device.