JPH03225397A - Electronic wind instrument - Google Patents

Abstract

PURPOSE:To enable performance in an invariably normal sound generation state by correcting operation data from a performance operation element with the parameter of a normal sound generation range so that the operation data enters the normal sound generation range, and inputting the corrected data to a sound source. CONSTITUTION:The performance operation element 1 outputs a pressure signal P based upon pen stroke pressure together with X-coordinate and Y-coordinate position data signals X and Y of a pen 2 on a tablet 3. Those signals X and Y and signal P are inputted to a correcting circuit 4. The circuit 4 corrects the position data and pressure data at the start of 1st sound generation so that the data enter the sound generation range, and then converts the data into a breathing pressure parameter and an ambusher parameter, which are inputted to the sound source 6. Pitch information corresponding to a scale is inputted to the sound source 6 by further operation on a keyboard 5. The sound source 6 generates an electronic sound according to those breathing pressure data, ambusher data, and bit data and the sound is outputted through a sound system 7. Consequently, the performance is enabled in the invariably normal sound generation state regardless of the operation state of the operation element 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic wind instrument that simulates a wind instrument, and in particular, a sound source circuit that operates based on input data such as position and pressure corresponding to musical tone parameters from performance operators. This is an improvement to ensure that the pronunciation is always correct.

[Prior Art] An electronic musical instrument that generates the back sound of a wind instrument such as a clarinet is equipped with a physical sound source that generates an electronic sound that physically approximates the sound generated by air vibration inside the mouthpiece of the wind instrument using an electric circuit. are doing. In such electronic wind instruments, the pitch information of pressed keys is input by keyboard operation, and parameter control signals corresponding to the breath pressure and amplifier share of the blowing operation are formed based on the key pressing speed, key pressing pressure, etc., and are sent to the sound source. It creates and generates electronic sounds by inputting information.

In conventional electronic wind instruments, a musical tone control signal based on the operating position and operating pressure of a performance operator is multiplied by a certain coefficient regardless of the speed, pressure, etc., and is substantially directly input to the sound source.

[Problems to be Solved by the Invention] However, when the operation information of the performance controllers is directly input to the sound source, there are cases where no sound is produced in a certain operation area, or an irregular sound such as an unpleasant sound or a so-called inside-out sound is generated. was there. Therefore, it is necessary to operate the performance controls while avoiding the occurrence of such irregular sounds, making it difficult to play the electronic musical instrument.

The reason for the generation of such arrhythmia is that, for example, the parameters of breath pressure and amplifier sure are not within the normal sound production range. The relationship between breath pressure and amplifier sure for wind instruments is the 6th
As shown in the figure, four straight lines define a normal sound generation area A where the sound begins, a sustained area B where the generated sound continues, and an irregular blue area C where the sound disappears or produces an unpleasant sound.
It is roughly divided into Therefore, when the performance operator is operated in a state corresponding to a certain breath pressure, the sound will not start unless the amplifier Sure at that time is too high or too low and falls within the sound generation region A. Moreover, if it enters the irregular blue region C, the sound disappears or an unpleasant sound or turning sound is generated.

In conventional electronic musical instruments, the operating information of the performance controls is directly input into the sound source, so depending on the operating conditions, the sound may fall into the irregular blue region.In such cases, the sound may disappear or unpleasant sounds may occur. It was occurring.

The present invention has been made in view of the above-mentioned shortcomings of the prior art, and is provided with a performance controller that is optimal for driving a physical sound source that approximates a wind instrument, and which always operates normally regardless of the operating state of the performance controller. To provide an electronic wind instrument that simulates a wind instrument that can be played while producing sound.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a performance controller that outputs position information and pressure information of the controller, and a wind instrument sound by inputting musical sound control parameters of the wind instrument. a sound source to be created, and a correction conversion circuit that corrects and converts the position information and pressure information into parameters of a normal sound generation area based on sound generation area characteristics based on the parameters, and the correction conversion circuit is connected to the sound source. ing.

The sound generation area characteristics are expressed by a graph consisting of four-tree curves in a coordinate system with breath pressure and amplifier sure as the vertical and horizontal axes,
The area between the two central curves constitutes the sound generation area, the areas on both sides constitute the sound duration area, and the area outside the two outermost curves constitutes the irregular blue area.

[If the operation data from the action controller is in the irregular blue area, for example, it is corrected to data that falls within the sound generation area, and this corrected data is input to the sound source.

[Examples] Hereinafter, the present invention will be described in more detail based on Examples with reference to the drawings.

FIG. 1 is a block diagram of an electronic wind instrument according to the present invention. The performance operator 1 is composed of a three-dimensional tablet device, and includes a ben 2 and a tablet 3. This performance controller 1
The Ben 2 outputs position data signals X and Y of the X and Y coordinates on the tablet 3, as well as a pressure data signal P based on pen pressure. These position data signals X, Y and pressure data signal P are input to the correction circuit 4.

At the beginning of the first sound, the correction circuit 4
The position data and pressure data are corrected so that they fall within the sound generation region where the sound begins, are converted into breath pressure parameters and amplifier sure parameters, and are input to the sound source 6.

Pitch information (key number) corresponding to a musical scale is further input to the sound source 6 by operating the keyboard 5. Sound source 6
creates an electronic sound based on these breath pressure data, amplifier sure data, and pitch data, and emits the sound via the sound system 7.

Another example of the performance operator is shown in FIG. This example uses a joystick mechanism. Rotary volume 9.1 in the X and Y directions can be adjusted by rotating the operating rod 8 supported on a free rotation bearing (not shown) to any position.
0 rotates and the rotational position in the X and Y directions is detected. Further, the operating pressure is detected by providing a pressure sensor in the grip portion of the operating rod 8.

Still another example of the performance operator is shown in FIG. This example uses a mouse mechanism. A rotatable ball 12 is installed in the main body 11, and by moving it on a flat plate,
The amount of movement in the X and Y directions is rotary volume 14.15
Detected by X.

It is output as position data in the Y direction. Furthermore, by providing a pressure sensor 13 on the top surface of the main body, the pressing force is output as pressure data.

Still another example of a performance operator which is an input device for controlling tone parameters of an electronic wind instrument according to the present invention is shown in FIGS. 4 and 5. Figure 4 is a top view, and Figures 5(a), (
b) is an enlarged side view and a top view of essential parts, respectively. This input device is a slide volume type operator, and an operator 27 slides along a guide groove 26 in the center of a main body 25 that constitutes a first slide volume. The operator 27 is
As shown in FIG. 5, it consists of a slider 28 that slides along the guide groove 26 in the direction of an arrow, and an operating piece 29 mounted on the slider 28. The operating piece 29 is desirably rotatable in the direction of arrow F relative to the slider 28 in order to facilitate sliding operation. In this case, the rotation angle can be detected and used as musical tone control data. The operating piece 29 constitutes a second slide volume.

The slider 31 moves along the guide groove 30 of the operation piece 29 in the direction of arrow E.
It slides like this. The first position data is obtained from the resistance value corresponding to the position of the operator 27, and the position data 'tS2 is obtained from the resistance value corresponding to the position of the operator 31.

A pressure sensor 32 is attached to the side surface of the operator 29 to measure the pressure during operation and obtain pressure data. Musical tone control parameters are calculated based on these two position data and pressure data, and the above-mentioned correction calculation is performed.

Next, an embodiment in which the present invention is applied to control of a sound source for an electronic wind instrument will be described. In the wind instrument algorithm, the pronunciation characteristics based on the relationship between amplifier sure and design are approximated by a straight line as shown in FIG.

Unlike the case of bowed string instruments, the four straight lines do not pass through the origin, but each has an intercept. The range between the two central straight lines S and C is the sound production area A, and the range on both sides is the sustain area B.
, and the range outside the straight lines a and d of the two outer trees is the irregular blue region C. Furthermore, the slope of each straight line differs greatly depending on the pitch.

FIG. 7 shows an example of a control system for correcting the control signal from the performance operator and inputting it to the sound source based on the sound generation area characteristics unique to wind instruments. As an input device, a performance operator 74 consisting of a three-dimensional tablet that draws a trajectory on the XY plane is used. The pen pressure data for pressing the performance operator and the XY coordinate data indicating the X and Y positions are input to the sound production area correction conversion program 76 of the detection circuit 75 . The input data is converted by the conversion program 76 into breath pressure data and amplifier sure data having values that fall within a predetermined normal sound generation range, and are input to the sound source control circuit 77 .

On the other hand, by operating the keyboard 78, the key number is input as pitch information to the sound source control circuit 77.

After the physical sound source that generates the electronic sound generates the -dan sound,
It has a hysteresis characteristic that maintains normal pronunciation of sounds even in the sustaining region B outside the sounding region A. Therefore, after the -dan sound begins to sound, it is desirable to vary the position of the parameter widely, including the sustain region, to provide a range of sound quality.

FIG. 8 shows a flow for determining whether to switch between the start-up process for starting the sound and the sustain process after the start-up. First, the maximum value of amplifier sure is set (step 79).
. Next, four straight lines a and b.

The slopes and intercepts of c and d (FIG. 6) are read from a predetermined table (step 80), and then additional intercepts for the rise and duration are calculated (step 81). Next, in step 82, it is determined whether or not it is start-up processing. This determination is made, for example, by counting the number of times the start-up process is performed, and determining whether or not the count reaches a predetermined set value. If it is a rising process, the parameters are determined by the key code (step 83), the minimum value of amplifier sure is set (step 84), the design at the rising time is calculated (step 85), and the design is corrected. (Step 86). When this design correction is completed, a counter is incremented (step 87). When the count exceeds a predetermined set value, the process is switched to sustain processing, parameters are determined by key code (step 88), the minimum value of amplifier sure is set (step 89), and a design for sustaining the sound is created. The design is calculated (step 90) and the design is corrected (step 91). FIG. 3i89 is a block configuration diagram of a sound source control system for a wind instrument type electronic musical instrument according to the present invention. X position data, Y position data, and pen pressure data are transmitted from a performance operator 74 consisting of a three-dimensional tablet and stored in a register 94. X,
The Y coordinate data is the reference coordinate X stored in the reference point coordinate register 92. , Yo are used to calculate the speed, direction and distance at fixed time intervals by the arithmetic circuit 93, and the calculation results are stored in the register 94. The register 94 is connected to a tone control parameter calculation circuit 95.

On the other hand, key code information representing a musical scale and lateral vibration information for shifting each parameter value in positive and negative directions are transmitted from the keyboard 78 and stored in the register 96. This register 96 is also connected to the tone control parameter calculation circuit 95.

The musical tone control parameter calculation circuit 95 reads data necessary for calculation from the registers 94 and 96, calculates each parameter, that is, design, amplifier sure, delay length, multiplier coefficient, filter coefficient, and other data, and sends it to the sound source 97. . A sound source 97 emits the created electronic sound from a sound system 99 via a D/A converter 98.

The ¥KIO diagram is a block diagram of the control mechanism of the electronic wind instrument according to the present invention. Signals from the performance operator 74 and the keyboard 78 are input to the CPU 18 via a pass line.

The CPU 18 reads necessary data from the ROM 103, which stores data necessary for each routine program and arithmetic processing, and the RAM 104, which stores the results of each calculation during the arithmetic processing, and calculates tone control parameters. A panel switch 105 is used to select tone, vibrato, etc., and to switch various modes. The display 106 displays the selected switch or mode. The timer 1f is used to interrupt the main routine by the CPU 18 at a fixed cycle of about several milliseconds.

FIG. 11 shows the basic main routine. Step 10
At step 7, each arithmetic circuit is initialized, and each sound source parameter is set to a predetermined initial value. Subsequently, the keyboard key switch processing (step 108) and other switch processing (step 109) are repeated. For such a main routine, an interrupt routine (described later) is executed at regular intervals by the timer, and the various control parameters are calculated.

FIG. 12 shows the key-on event routine when the keyboard is pressed in step 1o8 of the main routine. The key code of the pressed key is stored in register KCD (step 110).

FIG. 13 shows a routine when numerical input to the design control device for setting design-related parameters in step 109 of the main routine is turned on.

First, the input numerical value is stored in register BUF (step 111). BUF data is breath pressure device register PD
The information is stored in the EV (step 112). Next, the design control device name is displayed (step 113). In this embodiment, a device (operator data) for controlling a design etc. can be arbitrarily selected.

FIG. 14 shows the routine for the sway effect switch-on event within step 109 of the main routine. In step 114, a flag indicating whether or not a lateral shaking effect is to be applied to a predetermined parameter is switched. Step 11
At step 5, it is determined whether or not this flag is "1", that is, whether or not the lateral vibration is effective. If it is "1", the display indicates that the lateral vibration is on (step 117), and if it is not "1", the display indicates that the lateral vibration is off (step 116). It is now possible to select whether or not to take this into account.

FIG. 15 shows the panel switch processing routine in step 109 of the main routine. When the switch is turned on, the edit screen displaying the parameters to be processed is selected and the screen number is stored in the register PAGE (step 118). This memorized number screen will be displayed (
Step 119). Next, it is determined in order whether or not design, amplifier sure, delay, and other edit processing is to be performed (determination step 12o1122.12).
4). If YES in each determination step, a routine for setting design-related parameters, amplifier sure-related parameters, and delay-related parameters is executed (steps 121, 123, and 125). Furthermore, other switch processing is performed (step 126).

FIG. 16 shows the 'fs1 interrupt routine by the above-mentioned timer. First, XY coordinate data and pressure data are taken from the performance operators and stored in each register (step 127). Based on these stored data, the moving speed, direction, and distance of the performance controller are calculated according to a routine described later, and each is stored in a register (step 128).
. Rough lateral sway information is captured (step 129)
. Based on the above data, amplifier sure and design parameters are calculated according to a routine described later (step 130).

FIG. 17 shows the second interrupt routine using the aforementioned timer. First, delay length parameter processing is performed according to a routine to be described later (step 131). Next, calculate the loop gain of the sound source circuit, which will be described later (step 132).
Further, filter cutoff parameter processing, filter resonance parameter processing, and other parameter processing are performed (steps 133, 134, and 135).

FIG. 18 shows step 1 of the interrupt routine of FIG.
30 shows an example of the parameter processing routine for Ampsure and Design in No. 30. First, in step 136, register E
The amplifier sure device to be processed is determined based on the DEV number. The device number (DEVN) is, for example, 0
is calculated from standard values or other parameters,
1 is the X coordinate (X) of the tablet, 2 is the Y coordinate (Y), 3
is the pressure of the tablet (PR), 4 is the speed of the tablet (
VEL), 5 indicates the distance lit (D I ST).

If the amplifier sure register EDEV is not "o", first read the input data of the device indicated by EDEV and input it to the BUF (step 137). Next, the value of BUF is converted into amplifier sure data using a method compatible with EDEV, and this is input to and stored in EBUF (step 138). Subsequently, in steps 139 and 140, processing regarding lateral sway is performed. Here, KSEF (EN) is a flag indicating whether or not lateral vibration (KSH) is effective on the ENth parameter, and DEP (EN) is a flag indicating the depth of effect when lateral vibration is effective on the ENth parameter. . EN
For example, 1 is amplifier sure, 2 is design, 3 is delay length, 4 is loop gain,
5 indicates filter cutoff, and 6 indicates filter resonance. Next, in step 141, the number of the design register PDEV is determined. If it is 0, in step 146 EB
It is determined whether the value of UF (steps 138 and 140) is greater than a predetermined threshold. If it is smaller than the threshold value, it is ignored as noise, the number of times of processing is cleared to 0, and the processing is terminated (step 147). If it is larger than the threshold, a predetermined operator K1. 2 is obtained (step 155), a predetermined calculation is performed based on this, and the result is input into register PBUF (step 156). Subsequently, the register TIME is rewritten (step 157). If the number is other than 0 in the determination step 141, the input data of the device indicated by PDEV is read out, inputted into the BUF, and stored (step 142). This BUF value is converted into design data using a method compatible with PDEV, and is input and stored in the PBUF (step 143). Subsequently, a design correction calculation routine to be described later is performed (step 145). Next step 13 mentioned above
9. Processing for lateral vibration similar to 140 is performed (
Steps 148 and 149). The Ampsure data EBUF and the design data PBUF obtained in the above manner are sent to the sound source (step 150).

On the other hand, when the amplifier sure device register EDEV is 0 in step 136, the routine shown in FIG. 19 is performed. First, the device is determined based on the number of the design device register PDEV (step 151). PDE
If V is also O, an error is displayed (step 15).
2). When the value is other than 0, the input data of the device indicated by PDEV is read out, inputted into BUF, and stored (step 153). The value of this BUF is converted into design data using a method compatible with PDEV, and this is input into the PBUF and stored (step 154). The PBUF is then compared to a predetermined threshold (step 160) and is ignored as noise if it is less than the threshold. If it is larger than the threshold, calculate 2 for a predetermined operator (step 161), perform a predetermined calculation based on this, and input the result to register EBUF (step 162). Then register TIME
is rewritten (step 163), and then the same lateral vibration processing as in steps 139 and 140 described above is performed (steps 164 and 165).

Data EBU for Ampsure obtained as above
F and design data PBUF are sent to the sound source (step 166).

FIG. 20 shows step 1 of the interrupt routine of FIG.
31 shows the delay length parameter processing routine in No. 31. First, the device is determined based on the number in the delay length register DDE (step 167), and if O, the key code is input into the delay length key code register TGKCD (step 170). If other than 0, DDEV
The input data of the device indicated by is read out, inputted into BUF, and stored (step 168). This BUF value is converted into key code data using a method compatible with DDEV and input to TGKCD (step 169). Next, it is determined whether a lateral wobbling effect is to be applied to the delay length (step 171). If you are not sure, TG
The KCD data is inputted as is into the KBUF (step 172). If there is a lateral shake, a lateral shake correction calculation is performed and input into the KBLIF (step 173). Next, the value of KBUF is converted into a delay length and inputted into the delay length register DBUF (step 174). The delay length data obtained as described above is sent to the sound source (step 175).

FIG. 21 shows the loop gain parameter processing routine in the interrupt routine (FIG. 17). First, in step 176, the number of the gain device register GDEV is determined. If it is 0, set the standard cane 5TGI and 5TG2 as the loop gains G1 and G2 that are input to the sound source circuit (step 177). If it is other than 0, read the input data of the device indicated by GDEV, input it to BUF, and store it. (step 178). This BUF value is converted into a damping coefficient using a method compatible with GDEV, and these are set as 01 and G2. Next, lateral vibration processing is performed on the loop gain (steps 180 and 181), and the finally obtained loop gains G1 and G2 are sent to the sound source (step 182).

FIG. 22 shows the arithmetic routine of step 128 in the constant cycle interrupt routine (FIG. 16) by the timer. In step 183, the amount of movement ΔX and ΔY in each direction is determined from the difference between the previous and current XY coordinate positions. Step 1
84, the distance from the reference position (xo, yo) is 11 L x
, Find L Y. Based on these data, the velocity V of the tablet (performance controller) is determined by the predetermined calculation shown in the diagram.
Obtain EL, rotational equivalent amount LOT, rotational direction DIR, and movement distance DIST (steps 185, 186, and 187).
．． 189). After the calculation is completed, the current position data X and Y are stored in the register for the next calculation (step 19).
0).

FIG. 23 shows a first example of the design correction calculation routine in step 145 of FIG. 18. First, the above-mentioned amplifier sure and design parameter processing routine (Fig. 18,
The EBUF calculated in FIG. 19) is compared with a predetermined threshold (step 191). If it is smaller than the threshold, it is ignored as noise. If it is larger than the threshold, it is determined whether the number of times of processing has reached a predetermined value (step 192).

If the delay length key code register TG has not been reached,
From KCD, predetermined operators Bl, B2. B3. Find Ba and convert it into Kl, K2. 3. 4 (step 193). This all 82. BS+ 84 is the second
The straight lines dividing the sound generation area shown in FIG. 6 correspond to b+, b21 Cx-b+, and G2-bz, respectively, in the graph of c. In a conograph, the straight lines s and c are each y-b+
+b2x, ymcl+c2. It is represented by l. If the input in the X direction is xIn and the input in the Y direction is yIrl, for example, if y is to be made into a straight line by arithmetic correction and placed in the sound generation area between c, then Xln is set to X.

"b2X"((C+-b+)"(Cz-b2)x)'
Calculation is performed using y+n/yan MAX as y.

In step 193, Kl, K2. K3. After finding K4, the number of processing times is intercremented (step 195).
). Next, this K1. K2. A predetermined calculation is performed on Ks based on 4 and stored in PBUF (step 196).
. The calculation in step 196 is J+b2x+((C+-b+)+(C2-bz)X) with the above Xln being X.
This corresponds to the calculation performed with yen/Vtn MAX as y.

On the other hand, if the predetermined set value has been reached in step 192, AI, A2. A3. Find A4 and set it to Kl, 2+ K3+ to 4 (Step 1
94), performs the calculation in step 196 above. This AIl
A2. A3. A4 is the Bll B2.83.
84, the straight lines dividing the sound production areas shown in FIG. 26,
bI+ b2+ c+-b, l in the graph of c
c2-b, respectively.

FIG. 24 shows a second example of the design correction calculation routine.

Similar to the first example ('tS23) described above, EBLIF
is compared with a predetermined threshold (step 197), and the number of processing times is compared with a predetermined set value (step 198). If it is less than the set value, TIME is incremented (step 199).

Next, in step 200, i is set and the illustrated calculation is repeated four times to obtain 1. Calculate 2+, 3+, and 4. On the other hand, when the number of processing reaches the set value in the determination step 198, 1. Find 4 for 2+ K3+ (step 202
). This is how I got it: 1. 2 degrees to 3. PBUF in the same way as step 196 in FIG.
is calculated (step 201).

FIG. 25 shows an example of a sound source circuit for a wind instrument algorithm according to the present invention. The design signal and amplifier sure signal corrected as described above are each input to a subtracter 2 which serves as a circuit input section.
03 and adder 205. The subtracter 203 subtracts the design signal from the input signal of the signal line L2, thereby outputting a differential pressure signal for displacing the reed of the mouthpiece. A low-pass filter 204 is connected to the output side of the subtracter 203 to remove high-frequency components of the differential pressure signal. This is because the lead does not respond to high frequency components. The adder 205 adds the amplifier sure signal and the output of the low-pass filter 204 to create a nonlinear table 2.
Output to 06. This nonlinear table 206 simulates the amount of displacement of the lead with respect to applied pressure, and has predetermined human output characteristics. As a result, the output of the nonlinear table 206 becomes a signal representing the air passage area in the reed of the mouthpiece. This nonlinear table 20
The output of 6 is connected to one input of multiplier 216. The differential pressure signal from the subtracter 203 is input to the other input side of the multiplier 216 via the nonlinear table 207. This nonlinear table 207 simulates that even if the differential pressure increases, the flow rate is saturated in a narrow pipe and the differential pressure and flow rate are not proportional. Based on these two input signals, the output signal of multiplier 216 is a signal representative of the airflow velocity in the mouthpiece reed.

Multiplier 216 is connected to adder 210 via attenuator 209. The attenuator 209 has the aforementioned calculation routine (second
The loop gain G1 obtained in Figure 1) is input. This attenuator 209 is connected to the input side of an adder 210.

Adder 210 and adder 211 constitute a junction. Adder 210 combines the output side signal of delay circuit 215 and attenuator 209 to configure signal line L2.
The output signal is added to the output signal and output to the signal line L1. The other adder 211 adds the signal on the signal line L1 and the signal from the delay circuit 215 and outputs the result to the signal line L2. This loop simulates the combined pressure of the incident wave due to the input flow velocity and the reflected wave from the resonant tube immediately after the gap between the mouthpiece and the reed.

The signal on the signal line L1 is passed through a filter 213 and an attenuator 214.
and is fed back to the signal line L2 via the delay circuit 215. The filter 213 uses a low-pass filter alone or a combination of a low-pass filter and a bypass filter. The filter cutoff parameters and resonance parameters calculated in the aforementioned interrupt routine (FIG. 17) are input to the filters 204 and 213. Reducer 2
14 is the loop gain G obtained by the calculation routine in Figure 21.
2 is input. The delay length parameter obtained in the calculation routine of FIG. 20 is input to the delay circuit 215. Filter 213 simulates the shape of a resonant tube. The delay circuit 215 simulates a state in which an incident wave from the mouthpiece returns to the mouthpiece as a reflected wave, corresponding to the length of the resonance tube and the length from the end of the resonance tube to the tone hole.

The waveform signal of the signal line L1 is extracted as an electronic sound output through a bandpass filter 212 for simulating the radiation characteristics of musical sounds in the air.

FIG. 27 is a relationship graph between design (pr) and amplifier sure (em). The shaded area between the straight lines ■ and ■ indicates the range in which the sound is produced normally. The pen on the 3D tablet mentioned above is
In addition to the Y coordinate, pen pressure is output. Therefore, for example, Ampsure can be calculated from (Y coordinate) x (pen pressure/maximum value of writing pressure), and design can be calculated from Ampsure.

Assume the equations of the lines ■ and ■ as follows.

■: prwem/a+a ■: pr=em/d+d' In this case, the design pr in the shaded area is pr = em
/ d+ 6 ” + ((1/ a -1/ d
) e m + a-d' )x (X coordinate)/(
maximum value of the X coordinate).

In the wind instrument algorithm, pressure and X using a 3D tablet (or mouse, joystick, etc.)
Examples of assignments between Y-coordinate input parameters and musical tone control parameters are listed below.

B. Make the pressure correspond to Ampsure, and make the X coordinate correspond to the design.

B. Make the speed (calculated from the X and Y coordinates) correspond to Ampsure, and the pressure to correspond to the design.

C. Make the Y coordinate correspond to Ampsure, and make the pressure correspond to the design.

2. Adjust the pressure to the degree of rise and fall,
Looking for amp sure from speed, and looking for design instead. Make the sound rise when the pressure changes from O. In this case, the relationship between the time at the rise of the sound and the volume is determined by the 28th
Shown in Figures (a) and (b). (a) shows a case where the pressure change is large, and (b) shows a case where the pressure change is small. Execute when the speed is 0, such as at the start of an operation.

Conversely, when the pressure changes to O, the sound disappears.

The relationship between volume and time in this case is shown in Figure 29 (a) and (b).
Shown below. (a) shows a case where the pressure change is large, and (b) shows a case where the pressure change is small.

Execute when the speed becomes 0, such as at the end of an operation.

E, adjust the pressure to the degree of rise and fall,
The distance from the center coordinates of the operator corresponds to Ampsure, and the speed corresponds to the design.

To, the pressure corresponds to the degree of rise and fall,
Find the amplifier sure from the distance from the center coordinates of the controller,
Furthermore, the design is calculated from Ampsure.

FIG. 30 is an explanatory diagram of a parameter control method when lateral vibration information is taken into account. Applies vibrato when lateral vibration information is input. Normally, the design is controlled so that it moves along the dotted straight line ■ in the figure, where design = pressure x speed. In this case, ampsure is calculated from the design, for example, as ampsure=constant x design. When the lateral vibration information is received, the design is fixed at that point and Ampsure is set to point G on the straight line.
, change within the range of the straight line ■■ according to the lateral sway information. This allows you to easily apply vibrato.

In this embodiment, the sound generation area characteristics are approximated by a four-tree straight line, but this may be any number depending on the physical sound source algorithm used, or may be a curved line.

[Effects of the Invention] As explained above, in this invention, when musical sound control parameters (design, amplifier sure) are sent to a sound source based on operation information of a performance operator, electronic sounds created by musical sound parameters are In order to ensure that the sound generation area falls within the normal sound generation area, the musical tone control parameters are inputted to the sound source after correction is performed based on the sound generation area characteristic diagram based on the musical tone control parameters. Therefore, regardless of the operation state of the performance operator, the sound is reliably produced, and the electronic musical instrument can be easily played.

By switching and controlling the onset and duration of a sound based on the sound production area characteristic diagram, reliable pronunciation can be obtained and the range of sound expression can be expanded.

In particular, by using the sounding region characteristic diagram of the wind instrument algorithm, it becomes possible to play the tones of a wind instrument with an electronic musical instrument. In this case, the power of expression will be richer than when playing only with the keyboard. It is easier to play than an actual wind instrument, and the operator can reliably produce sound by operating the controls, making it easier for the player to breathe.

When playing a wind instrument, the sound is adjusted by adjusting the bite of the reed, the pressure of the breath, etc., but with the controls, you can easily adjust the sound by simply moving your hand. Since you can move your hands freely on the controls, you can have a wide dynamic range. You can easily control the volume and previous page. In addition, it is possible to intuitively match the movement for pronunciation with the sound. Furthermore, the duration of the sound can be extended.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an example of an electronic musical instrument control mechanism equipped with a performance operator according to the present invention, FIG. 2 is an explanatory diagram of another example of a performance operator, and FIG. 3 is an explanatory diagram of yet another example of a performance operator. An explanatory diagram of an example, FIG. 4 is a top view of the slide volume type performance controller, FIGS. Figure 7 is a basic configuration diagram of the sound source control mechanism of an electronic wind instrument using a 3P tablet; Figure 's8 is a flowchart of processing switching operations at the onset and duration of the sound of an electronic wind instrument; Figure 9 Figure 10 is a block configuration diagram of the sound source control mechanism of an electronic wind instrument. Figure 10 is a basic configuration diagram of an electronic wind instrument. Figure 11 is an explanatory diagram of the main flow of the sound source control program. Figure 12 is an illustration of the operation at key-on. Figure 13 is a flowchart when assigning design-related devices, Figure 14 is a flowchart for the swaying effect, Figure 15 is a flowchart for panel switch processing, Figure 16 is a flowchart for the first example of the interrupt routine, Figure 17 is a flowchart of the second example of the interrupt routine, Figures 18 and 19 are flowcharts of the amplifier sure and design parameter processing routine, Figure 20 is a flowchart of the delay length parameter processing routine, and Figure 21 is a flowchart of the delay length parameter processing routine. Figure 22 is a flowchart of the loop gain processing routine, Figure 23 is a flowchart of the first example of the design correction routine, Figure 24 is the flowchart of the second example of the breath pressure routine. Figure 25 is a configuration diagram of the sound source of the wind instrument algorithm, Figure 26 is an explanatory diagram of the design correction calculation, Figure 27 is a graph of the relationship between breath pressure and amplifier sure of the wind instrument algorithm, Figures 28 (a), (b) ) are graphs of the relationship between the time at which the sound rises and the volume when the pressure is high and low, respectively. Figures 29 (a) and (b) are the time at which the sound fades away when the pressure is high and low, respectively. FIG. 30 is an explanatory diagram of the control of the lateral vibration effect in the wind instrument algorithm. 1.27, 74: Performance operator, 4: Correction circuit, 5.78
: Keyboard, 6.97: Sound source, 18: CPU, 76: Conversion program. Fig. Nc P・1. Go1to No. 11 Figure Pawinter SW Place I! Kion'jpe) Y Fig. 2 Fig. 3 Fig. 3 Fig. 6 Haru () 1 - Luo I Fig. 6 V. ] (! ) (0) (1)) Figure 28

Claims (2)

[Claims] (1) A performance operator that outputs the position information and pressure information of the operator, a sound source that creates a wind instrument sound by inputting the musical sound control parameters of the wind instrument, and a sound source that outputs the position information and pressure information based on the sound generation area according to the parameters. 1. An electronic wind instrument, comprising: a correction conversion circuit that corrects and converts pressure information into parameters in a normal sound production area; and the correction conversion circuit is connected to the sound source. (2) The sound generation area characteristics are represented by a graph consisting of four curves in a coordinate system with breath pressure and amplifier sure as the vertical and horizontal axes, and the area between the two central curves substantially constitutes the sound generation area. 2. The electronic wind instrument according to claim 1, wherein the regions on both sides constitute a sound sustaining region, and the region outside the two outermost curves constitutes an irregular tone region.