JPH05197375A - Touch generator - Google Patents

Abstract

(57) [Summary] [Purpose] Touch generation that allows unprecedented performance touch parameters to be extracted and allows the performer to freely set the degree to which the extracted performance touch parameters are reflected as a touch response effect in a musical sound. Provide the device. In a touch generation device that uses a performance input device that inputs continuously variable performance operation states, and extracts performance touch parameters for controlling musical tones from the performance operation state provided by the performance input device, A sensitivity setting device that variably sets sensitivity to operation, a peak evaluation device that evaluates the peak of the playing operation state, and a changing device that changes the evaluated peak according to the set sensitivity to obtain the playing touch parameter. Provided.

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, and more particularly to a touch generation device used in an electronic musical instrument having a touch response function.

[0002]

2. Description of the Related Art An electronic keyboard instrument with a touch response function, which evaluates an initial touch by pressing a key and uses the evaluated touch data to control a sound source, is already known. Generally, in this type of electronic keyboard musical instrument, one or more contact switches are arranged corresponding to each key of the keyboard. For example, in a model using a two-contact switch as a contact switch, the state of the two-contact switch changes as follows according to the key operation state. First, in the normal state where the key is released, the movable piece of the two-contact switch is in contact with the first fixed contact. As the key is pressed, the movable piece of the two-contact switch separates from the first fixed contact. When the key is further pushed and the displacement of the key exceeds a certain level, the movable piece of the two-contact switch comes into contact with the second fixed contact. The touch data generating device measures the time until the movable piece of the two-contact switch moves away from the first fixed contact and moves to the second fixed contact. This measurement result represents the key pressing speed, and is used as the initial touch data for controlling the sound source. Due to the structure of the contact switch, the key displacement when the movable piece of the two-contact switch starts to separate from the first fixed contact is almost constant, and the magnitude of the displacement is different, but the movable piece is the second.
The displacement of the key when it comes into contact with the fixed contact is almost constant.

[0003]

As described above, in the conventional touch data generating device, only the key pressing speed is measured as the initial performance touch. However, it is clear that key depression speed is not the only performance touch. In other words, the key depression speed only represents one aspect or feature of the key depression touch. Therefore, by measuring data representing other aspects and controlling the sound source by using the data as a play touch or one parameter of the play touch, a musical tone with a touch response effect which has not been existent can be obtained. Is possible. In this case, it is more preferable that the size of this type of playing touch parameter, in other words, the degree to which the playing touch is reflected in the musical sound can be freely selected according to the performer's preference and music. Therefore, an object of the present invention is to provide a touch generation device capable of extracting an unprecedented performance touch parameter and allowing a player to freely set the degree to which the extracted performance touch parameter is reflected as a touch response effect in a musical sound. Is to provide.

[0004]

In order to achieve the above-mentioned object, the present invention uses performance input means for inputting continuously variable performance operation status, and from the performance operation status given from this performance input means, In a touch generation device for extracting performance touch parameters for controlling musical tones, sensitivity setting means for variably setting sensitivity to performance operation, peak evaluation means for evaluating the peak of the performance operation state, and evaluated peaks. A changing means for changing the sensitivity according to the set sensitivity to obtain the performance touch parameter is provided.

[0005]

[Operation] According to the above arrangement, the peak evaluation means evaluates continuously variable peaks of the performance operation state. This parameter is a new performance touch parameter that has never existed before. Further, the evaluated peak is changed by the changing means at the sensitivity set by the sensitivity setting means, and becomes the final performance touch parameter. Therefore, when the sensitivity is set high, a highly sensitive touch response effect can be obtained, and when the sensitivity is set low, a suppressed touch response effect can be obtained. As a result, it becomes possible for the performer to perform with a touch response effect that suits their taste and feelings.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram when the present invention is applied to an electronic keyboard instrument. This electronic keyboard instrument is provided as a performance input means corresponding to each key of the keyboard and the keyboard, and has an input device 1 for detecting the displacement of each key. The analog key displacement signal AS from the input device 1 is time-divisionally A / D scanned by the A / D converter 2 to be converted into a corresponding digital signal DS, and further averaged by the data converter 3 to output the digital output. The TD is input to the microprocessor 6 as the touch data generation device and the musical sound control means.

On the other hand, the memory 4 stores programs, parameters, etc. necessary for the generation of performance touch parameters and the control of musical tones generated by the tone generator 7. The selection of a desired parameter is a selection signal from the switch / display unit 5. It is performed according to SS. Further, according to the present invention, the switch / display unit 5 includes means for setting a degree (touch sensitivity) in which a touch of a key operation is reflected in a musical sound.

The microprocessor 6 extracts performance touch parameters from the data TD representing the key displacement from the data converter 3 and corrects them according to the set touch sensitivity. Further, the microprocessor 6 generates musical tone control data TS based on the performance touch parameter and the musical tone parameter TA from the memory 4 and transfers the musical tone control data TS to the tone generator device 7, thereby controlling the tone generator device 7. The tone generator 7 generates MD of a tone signal according to the sent tone control data TS and outputs it to the output device 8 including an amplifier, a speaker and the like. The output device 8 amplifies the sent musical tone signal MD,
The sound MT is output to the outside.

The mechanism and circuit configuration of the input device 1 are shown in FIGS. 2 and 3, respectively. In FIG. 2, the key 2-1 of the keyboard
Can swing up and down about the fulcrum 2-2. A rack 2-3 is attached to the key 2-1 and a pinion 2-4 having teeth that mesh with the teeth of the rack 2-3 is provided as illustrated. A variable resistor 2-5 as a key displacement sensor is attached to the shaft 2-4a of the pinion 2-4.
Is attached, and the displacement of the key 2-1 is detected as the resistance value of the variable resistor 2-5.
That is, the variable resistor 2-5 for each key 2-1 is shown in FIG.
They are connected in a matrix as shown in, and time division A
During the / D scan, a constant power source is sequentially connected to each row 1 of this matrix circuit and added to one end of the variable resistor 2-5. As a result, an analog voltage corresponding to the key displacement is generated at the other end of each variable resistor 2-5. The analog voltage for one row is multiplexed through an analog multiplexer (not shown) and then input to the A / D converter 2 and converted into a digital value.

FIG. 4A illustrates the profile of the key displacement signal AS detected by the variable resistor 2-5. As shown, the displacement of the key changes continuously with time. A profile of the output TD of the data conversion unit 3 with respect to the key displacement signal shown in FIG. 4A is shown in FIG. 4B. In the figure, xl represents a threshold for identifying whether or not an operation on the key has started, and xh represents a peak displacement of the key displacement profile.

FIG. 5 shows a configuration example of a touch sensitivity setting device provided in the switch / display unit 5 (FIG. 1). Setting (T
The touch sensitivity setting mode is set by pressing the S) key 5-1. In this mode, operating the up (UP) key 5-2 increases the touch sensitivity and presses the down (DOWN) key 5-3. And touch sensitivity becomes low. The set touch sensitivity data is displayed on the display panel 5-4.

FIG. 6 shows a flow of touch sensitivity setting processing executed by the microprocessor 6. This processing is one of the processing routines for the switch change of the switch / display unit 5.

At step S-1, it is checked whether or not the touch sensitivity setting mode is selected by the setting key 5-1. In this mode, steps S-2 and S-
As shown by S and S-3, each time the up key 5-2 is pressed, the touch sensitivity data K is incremented and the result is displayed on the display panel 5-4. However, when the sensitivity reaches the upper limit of 100, it is fixed to that value. Similarly, as shown in steps S-5 to S-7, each time the down key 5-3 is pressed, unless the lower limit 0 is reached, the touch sensitivity data K is decremented and the result is displayed. The flow of FIG. 6 is also executed during the performance of the keyboard.

Next, with reference to FIG. 7, a process of extracting the playing touch parameter from the key displacement data of the data converting section 3 will be described. The microprocessor 6 substitutes zero for S for any one key 2-1 when shifting to the key pressing start detection mode (A-1). Then, the key displacement data DATA relating to the key is read and stored in D _i (A-2), and it is checked whether or not the value D _{i of} this data exceeds the threshold xl for starting the key depression (see FIG. 4). (A-3),
If the threshold value xl is not reached, the process returns to A-2.

At A-3, the key displacement data D _i is the threshold value xl.
When the above is detected, the microprocessor 6 shifts to the initial performance touch parameter generation mode. That is, as shown by A-4, every time the key displacement data DATA of interest is read, the counter S is incremented and the read key displacement data DATA is stored in D _{i + 1} . Then, this key displacement data D _{i + 1}
Is compared with the previous key displacement data D _i, and it is determined whether or not the key displacement has reached the peak by determining whether or not D _{i + 1} ≦ D _i is established. Since the displacement of the key is increasing and the peak xh is not reached while D _{i + 1} > D _i holds, D _i
The contents of _{i + 1} are moved to D _i (A-5), and the process returns to step A-4.

In step A-6, when D _{i + 1} ≤D _i holds, it means that D _i is the peak key displacement data. At this point, the counter S has a key displacement of a threshold value xl.
It contains the data of the time from when it crosses to the peak.

Then, the microprocessor 6 proceeds to step A-7 to obtain the performance touch parameter, and sets the contents of the counter S as the first initial performance parameter R.
Peak data D of key displacement while storing in ATE
The second initial performance parameter is calculated from _i and the touch sensitivity data K obtained in the flow of FIG.
Store at E. Therefore, RATE represents the key pressing speed, and VALUE represents a value obtained by converting the magnitude of the key pressing displacement according to the touch sensitivity data.

The RATE and VALUE data are sent from the microprocessor 6 to the sound source device 7 with the corresponding key 2
-1 is directly or indirectly used in a sound generation processing routine (not shown) for instructing the start of sound generation of a musical sound, and as a result, extracted performance touch RATE, VA
A musical sound reflecting the LUE is generated in the sound source device 7,
Expressive touch response effect is produced. Furthermore, V
With regard to ALUE, the touch response effect will be provided with the size adjusted by the sensitivity data.

Two initial performance touch parameters R
ATE and VALUE can be used in various forms for tone control. For example, in the application to volume control, the key depression peak displacement data VALUE can be used as the change data of the arrival level of the attack of the amplitude envelope of the musical sound, and the key depression speed data RATE can be used as the change data of the time to the arrival level of the attack. ..

Further, in the application to the tone color control, the key depression peak displacement data VALUE can be used as the mixture ratio of the musical tone spectrum. When applied to pitch control, VALUE can be used as the vibrato depth and RATE can be used as the vibrato speed parameter. Although the description of the embodiment has been completed, the present invention is not limited to the above embodiment, and various modifications and timbres can be easily made.

For example, in the above embodiment, the keyboard and the sensor 2-5 for detecting the displacement of each key of the keyboard are used as the performance input means, but in the case of being applied to the electronic wind instrument, the mouthpiece and the breath passing through the mouthpiece are used. Alternatively, a breath sensor that detects inhalation can be used as a performance input means, and if applied to an electronic stringed instrument, a transducer that picks up the strings and the vibration of the strings, or a choking sensor or a tremolo arm that detects choking to the strings. It can be configured with a tremolo sensor that detects the displacement of the tremolo arm. In short, the performance input means may be any means for inputting or detecting a continuously variable performance operation state.

In the above embodiment, the speed parameter RA
Although TE is not changed by the sensitivity data K, it can be also changed. In general, when a plurality of performance parameters are obtained from a continuously variable performance operation state, sensitivity data may be set independently for each performance touch parameter, or sensitivity data common to all performance touch parameters may be set. It may be set, and the change for this can be easily realized.

[0023]

As is apparent from the above description, according to the present invention, a continuously variable performance operation state is input from the performance input means, and the peak of the performance operation state is evaluated by the peak evaluation means. , The sensitivity to the performance operation can be variably set by the sensitivity setting means, and the performance touch operation parameter of the evaluated peak is changed according to the set sensitivity by the changing means to obtain the performance touch parameter. There is an advantage that the musical tone controlled by the performance touch parameter that cannot be obtained can be obtained, and the player can freely adjust the degree reflected on the musical tone as a response effect. As a result, it is possible to perform a musical performance with a touch response effect that is expressive and unprecedented, as the player desires.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram when the present invention is applied to an electronic keyboard instrument.

FIG. 2 is a diagram showing a key mechanism.

FIG. 3 is a diagram showing a matrix circuit of a variable resistor as a key displacement sensor.

FIG. 4 is a diagram showing a profile of a key displacement signal input from an input device.

FIG. 5 is a layout diagram of a setting device that sets sensitivity to key operation.

FIG. 6 is a flowchart of sensitivity setting processing executed by a microprocessor.

FIG. 7 is a flowchart of touch data generation executed by a microprocessor.

[Explanation of symbols]

 1 Input Device 2-1 Key 2-5 Variable Resistor 5-1 Setting Key 5-2 Up Key 5-3 Down Key 6 Microprocessor

Claims (1)

[Claims] 1. Based on a continuously variable performance operation state,
In a touch generation device for generating performance touch parameters for controlling the characteristics of musical sounds, peak evaluation means for evaluating the peak of the performance operation state, sensitivity setting means for variably setting sensitivity to performance operation, and the peak evaluation A touch generation device comprising: changing means for changing the peak evaluated by the means according to the sensitivity set by the sensitivity setting means to obtain the performance touch parameter.