JPH06236179A - Musical sound control data processor - Google Patents

Abstract

PURPOSE:To eliminate unnaturalness in musical performance by preventing characteristics of a musical sound such as a timbre from varying while the musical sound is held. CONSTITUTION:The musical sound control data processor of an electronic musical instrument can generate a musical sound having different characteristics on the basis of musical sound control data for varying the characteristics of the musical sound and also hold the musical sound being generated; when the musical sound being generate are held, the musical sound control data on the musical sound being generated are also held and the sound generation of the musical sound being held is controlled according to the characteristics of the musical sound based upon the held musical sound control data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tone control data processing apparatus, and more particularly to a tone control data processing apparatus suitable for use in an electronic musical instrument capable of holding a tone being sounded.

[0002]

2. Description of the Related Art Generally, in the field of electronic musical instruments, when each key of a keyboard device is pressed from a released state, the pressing pressure of the pressed key (hereinafter referred to as an after-press).・ It is known that an electronic musical instrument has a function of detecting the "touch") and generating a signal (after touch signal) corresponding to the after touch, and controlling the characteristic of the musical sound being sounded by this after touch signal. Has been.

That is, in accordance with such an after-touch signal, various characteristics of the sounded tone are produced, such as changing the tone color, volume or pitch of the tone, changing the amplitude or speed of the vibrato. Was added to give the performance a facial expression.

In addition, an on signal based on an on operation (depression operation) of a performance operator such as a pedal continues (holds) the musical tone being sounded without attenuating even after the key is released, and an off operation of the performance operator ( An electronic musical instrument having a function of canceling a hold by an off signal based on a depression operation) and muting the held musical tone is also realized.

At present, an electronic musical instrument having the above-mentioned two functions has been put into practical use, and it is possible to control a musical tone by an after touch signal and hold the musical tone. .

[0006]

However, in the conventional electronic musical instrument having the above-mentioned two functions,
When the key is released after the performance operator for instructing the hold is turned on, the released tone is held, but the pressing pressure (after touch) of the released key disappears (“0 : It becomes "zero"), so the tone is not controlled by after-touch, and the characteristics of the held tone (tone, volume, pitch, etc.)
However, there is a problem in that the pressed key is different from that after the key is pressed.

That is, the tone color of the held musical tone is different before and after releasing the key, which gives a very unnatural feel to the performance of the music.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is not only to hold musical tones but also characteristics of musical tones held at that time. Musical tone control data such as after touch signals for controlling is also held at the same time, and the characteristic of the musical tone being held is controlled by the held musical tone control data so that the characteristic of the musical tone such as tone color changes during holding. It is an object of the present invention to provide a musical tone control data processing device that prevents the above-mentioned problems and eliminates unnaturalness in music performance.

[0009]

In order to achieve the above object, a tone control data processing apparatus according to the present invention produces musical tones having different characteristics based on the tone control data for changing the characteristics of musical tones, and produces a sound during tone generation. In the tone control data processing device in the electronic musical instrument that can hold the tone of
When the musical tone being sounded is held, the musical tone control data of the musical tone being sounded is also held, and the characteristic of the musical tone based on the held musical tone control data is used to control the pronunciation of the musical tone being held.

[0010]

When the tone being sounded is held, the tone control data of the tone being sounded is also held. Therefore,
The characteristics of the musical tone being sounded do not change during the holding of the musical tone.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A musical tone control data processing apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram of an electronic musical instrument having a tone control data processing device according to an embodiment of the present invention.

This electronic musical instrument is constructed so that its entire operation is controlled by using a central processing unit (CPU) 10. In order to perform a 10 msec interrupt process, which will be described later, the CPU 10 receives C at a time interval of 10 msec.
10 msec to apply timer interrupt to PU10
A timer 12 and a keyboard section 14 for the player to perform a performance by depressing and releasing keys are connected.

Further, the CPU 10 has a read-only memory (ROM) 16 in which a predetermined program for controlling the overall operation is stored via the bus, and is necessary for execution of the program by the CPU 10 described later. Random access memory (RAM) 18 as a working area in which various buffers and registers are set
And a panel 20 equipped with a peak switch (PEAKSW) and a mode switch (MODESW) which will be described later.
And a tone generation unit 22 that generates / stops a tone signal corresponding to a key depression operation / key release operation of the keyboard unit 14 under the control of the CPU 10.

The tone generation section 22 uses the after-touch value, etc., which will be described later, to characterize the tone (timbre, volume, pitch, etc.).
Until it is instructed to change, the previously stored characteristics are retained. Then, D
A sound emitting unit 24 including an A / A converter and an amplifier is connected to the sound emitting unit 24, and a speaker 26 is connected to the sound emitting unit 24. In this way, the musical sound signal output from the musical sound generating unit 22 is emitted to the space as a musical sound through the sound emitting unit 24 and the speaker 26.

Further, the CPU 10 is connected with a pedal 28 as a performance operator for performing an operation for holding a musical tone.

The above-mentioned components will be described in detail below.

The keyboard portion 14 is a CPU when a key is pressed.
10 is interrupted, and a key-on signal including a key number corresponding to the depressed key is output to the CPU 10. Also, when the key is released, the CPU 10 is interrupted and a key-off signal including the key number corresponding to the released key is output to the CPU 10.

On the other hand, when the key is further pressed and pressed after the key is pressed, a value (after touch value) corresponding to the pressed depth is output as an after touch signal. The after-touch value takes a value of "0" to "127", "127" is output when the key is pressed to the maximum, and the after-touch value becomes smaller as the key is weakened. When the key is not pressed at all, the after touch value is "0".

The after touch value is common to all the keys of the keyboard section 14, and is read by the CPU 10 by the 10 msec interrupt process.

The panel 20 is provided with PEAKSW as a switch for selecting whether or not to hold (peak hold) the maximum value of the after touch value output by the after touch signal. . When “PEAKSW = 0” is selected by operating PEAKSW,
If “PEAKSW = 1” is selected by operating PEAKSW without performing peak hold, peak hold is performed.

Further, the panel 20 is provided with MODESW as a switch for selecting the peak hold mode when "PEAKSW = 1" is selected by the operation of PEAKSW. When “MODESW = 0” is selected by the MODESW operation, the “attenuation mode” is set, and when the MODESW is operated, the “MOD mode” is selected.
When "ESW = 1" is selected, the "hold mode" is entered. By the operation of PEAKSW, "PEAKSW =
When "0" is selected, MODESW is invalid.

The above-mentioned attenuation mode is a mode in which the peak hold is performed regardless of the value (pedal value) corresponding to the operation amount of the pedal 28 described later. However, when the after-touch current value falls below the held after-touch value, the after-touch value held with a predetermined time constant is maintained until the held after-touch value reaches the current value. The touch value is gradually attenuated. On the other hand, when the current after touch value exceeds the held after touch value,
It follows without any time constant.

Further, the damping speed is set so that it can be controlled by the pedal value. That is, the deeper the pedal 28 is, the faster the damping is, and the shallower the pedal 28 is, the slower the damping is. Then, when the pedal 28 is fully depressed, it is instantaneously attenuated (follows as it is without having a time constant at all), and when the pedal 28 is not fully depressed, it is not attenuated (attenuation speed = 0). It is designed to keep holding the after-touch value that is being held.

The setting of the operation of the pedal 28 for controlling the damping speed described above may be reversed.
That is, the pedal 28 may be set so that the damping becomes faster when the pedal 28 is depressed shallowly and becomes slower when the pedal 28 is depressed deeply.

The hold mode is a mode for performing peak hold when the pedal value is 64 or more (the pedal value can take a value of "0" to "127" as will be described later). . Therefore, when the pedal value is less than 64, peak hold is not performed and the after
The current touch value is reflected in the performance. In the hold mode, the held after touch value does not change at all until an after touch value larger than the held after touch value is input.

The pedal 28 is a performance operator for holding a musical sound as described above, and is operated by depressing it. When "PEAKSW = 1",
It also functions as an operator for controlling the peak hold of the after touch value.

The pedal 28 outputs a pedal value, which is a value corresponding to the depression depth, as a pedal signal. The pedal value takes a value of "0" to "127", "127" is output when the pedal is fully depressed, the pedal value becomes smaller as the pedaling becomes shallower, and when the pedal is not depressed at all, The pedal value is "0".

The tone is set to be held when the pedal value is "64" or more. Such a pedal value is C by 10 msec interruption processing.
It is read by the PU 10.

The ROM 16 stores a predetermined program for controlling the overall operation as described above, as well as preset parameters for controlling a musical tone.

In the RAM 18, as described above, C
In addition to the buffers and registers required for the PU 10 to execute the programs stored in the ROM 16,
The parameters used to control the characteristics of the musical tone (timbre, volume, pitch, etc.) when the musical tone is generated are stored.

The buffers and registers related to the implementation of the present invention include the following. Further, in the following description, the contents (data, etc.) of each buffer and register are represented by the same label name unless otherwise specified.

(1) PEAK This register stores the peak-touched after touch value. Based on the contents of this PEAK, the characteristics of the musical tone being sounded are controlled. That is, when the after-touch value is peak-held, the maximum value is always stored in PEAK. It is initialized to “0” when the power is turned on.

(2) AFTER This register temporarily stores the after-touch value by the after-touch signal from the keyboard section 14 read by the CPU 10 as it is.

(3) PEDAL This register temporarily stores the pedal value based on the pedal signal from the pedal 28 read by the CPU 10.

The operation of the electronic musical instrument having the musical tone control data processing device according to the present invention will be described with reference to the flowcharts shown in FIGS.

When the power of the electronic musical instrument is turned on, the initialization routine shown in FIG. 2 is started, and PEAK is initialized to "0" in step S202.

When the process of step S202 is completed, the process proceeds to step S204, and the CPU 10 is set to the sleep state. The sleep state is a state in which the CPU 10 suspends its operation and waits until the CPU 10 is interrupted. When the CPU 10 is interrupted in the sleep state, the CPU 10 executes interrupt processing corresponding to the interrupt. When the execution of the interrupt process is completed, the process returns to step S204 to enter the sleep state, and waits until the next interrupt process is performed.

Then, in this electronic musical instrument, when a key of the keyboard section 14 is pressed, the CPU section 10 moves from the keyboard section 14 to the CPU 10.
Is interrupted, and the key depression interrupt process is executed. In this key-depression interrupt process, the CPU 10 reads the key-on signal simultaneously output from the keyboard section 14, and based on the key number corresponding to the key-depressed key included in the key-on signal, the tone generation section. A tone generation start signal is output to 22. Then, the musical sound generation unit 22 uses C
When the tone generation start signal is received from the PU 10, the CPU 10
Under the control of, the tone signal corresponding to the key number is generated. The musical tone signal thus generated is output to the sound emitting unit 24 and converted into an audio signal, and the musical tone is emitted from the speaker 26 into the space.

On the other hand, when the key of the keyboard section 14 is released,
The keyboard unit 14 interrupts the CPU 10 to execute the key release interrupt process. In the key release interrupt processing, the CPU 10 reads the key-off signal simultaneously output from the keyboard section 14, and based on the key number corresponding to the key-release key included in the key-off signal,
A tone generation stop signal is output to the tone generator 22.
When the tone generation section 22 receives a tone generation stop signal from the CPU 10, the tone signal being generated corresponding to the key number is zero (= 0) in amplitude under the control of the CPU 10. The state is gradually reduced until it reaches (release state). That is, when the key is released, the musical tone being sounded is silenced with a lingering sound.

However, when the pedal value is "64" or more, even when the key of the keyboard section 14 is released, the transition of the tone signal to the release state is stopped and the tone signal is held (hold state). ). This hold state is released when the pedal value becomes less than "64", and the tone signal that has stopped shifting to the release state is shifted to the release state.

Also, 1 is set by the 10 msec timer 12.
An interrupt is issued to the CPU 10 at a time interval of 0 msec, and a 10 msec interrupt processing routine (FIG. 3)
Is executed. The CPU 10 determines the after-touch value output from the keyboard unit 14 and the pedal value output from the pedal 28 by the 10 msec interrupt process.
In addition, PEAKSW and MO set on the panel 20
Determine the operating state of DESW. Then, based on these determination results, the characteristics (tone color, volume, pitch, etc.) of the musical sound being generated in the musical sound generation unit 22 are changed. The 10 msec interrupt processing routine will be described in detail below.

When the 10 msec interrupt processing routine is started, first, in step S302, the after-touch value is read and stored in AFTER, and in step S302.
Proceed to 304.

In step S304, the pedal value is read and stored in PEDAL, and the flow advances to step S306.

In step S306, the operation state of PEAKSW is detected, and it is determined whether PEAKSW is "1". When the determination result of step S306 is negative (N), that is, when PEAKSW is "0" (when peak hold is not performed), step S308.
Go to.

In step S308, the value of AFTER is stored in PEAK. When the process of step S308 ends, the process proceeds to step S310.

In step S310, the characteristics of the musical tone being sounded are controlled based on the value of PEAK. Since step S310 is processed based on a known technique, detailed description thereof will be omitted. When the process of step S310 is completed, the process returns to step S204 to enter the sleep state.

On the other hand, if the determination result of step S306 is affirmative (Y), that is, if PEAKSW is "1" (when performing peak hold), the process proceeds to step S312.

In step S312, the operating state of MODESW is detected, and it is determined whether MODESW is "1". If the determination result of step S312 is positive, that is, if "MODESW" is "1" (in the holding mode), the process proceeds to step S314.

In step S314, the pedal value is "6".
4 ”or more, it is determined whether or not. Step S314
If the determination result of No is negative, that is, if the pedal value is less than “64”, the peak hold is not performed even in the holding mode, so the process proceeds to step S308 described above, and A
Store the value of FTER in PEAK.

When the process of step S308 is completed, the process proceeds to step S310, the above process is performed, and the process returns to step S204.

On the other hand, if the determination result of step S314 is affirmative, that is, if the pedal value is "64" or more, peak hold is performed and the process proceeds to step S316.

In step S316, it is determined whether or not the AFTER value is larger than the currently held PEAK value. The determination result of step S316 is negative, that is,
If the AFTER value is less than or equal to the currently held PEAK value, the peak hold after
Since the touch value is more than the current after touch value,
The process is terminated without changing the peak-held after-touch value, and the process returns to step S204.

That is, the musical tone generating section 22 retains the previously stored characteristic until the change of the characteristic of the musical tone is instructed. Therefore, if the determination result in step S316 is negative, You may return to step S204 as it is.

On the other hand, the determination result of step S316 is affirmative, that is, the PEA currently holding the value of AFTER.
If it is larger than the value of K, the current after-touch value is larger than the peak-held after-touch value. Therefore, the peak-held after-touch value is changed to the current after-touch value. -It is necessary to update the touch value. Therefore, in this case, the process proceeds to step S308, and the value of AFTER is stored in PEAK. As a result, the new after-touch value is stored in PEAK. Then, when the process of step S308 ends, the process of step S310 is performed in the same manner as above, and the process returns to step S204.

If the result of the determination in step S312 is negative, that is, if "MODESW" is "0" (in the attenuation mode), the process proceeds to step S318.

In step S318, it is determined whether or not the value of AFTER is larger than the value of PEAK currently held. The determination result of step S318 is positive, that is,
If the AFTER value is greater than the currently held PEAK value, the current after-touch value is greater than the peak-held after-touch value, so the peak-hold value is set. The after-touch value needs to be updated to the current after-touch value.
Therefore, in this case, the process proceeds to step S320 and the AF
Store the value of TER in PEAK. As a result, the new after-touch value is stored in PEAK. When the processing of step S320 is completed, step S
The process proceeds to step 310, the process is performed, and the process returns to step S204.

On the other hand, the determination result of step S318 is negative, that is, the value of AFTER is the PEA currently held.
If it is less than or equal to the value of K, the process proceeds to step S322.

In step S322, it is determined whether the value of AFTER is equal to the value of PEAK currently held. The determination result of step S322 is positive, that is, A
When the value of FTER is equal to the value of PEAK currently held, the after-touch value held by the peak and the current after-touch value are the same, and the tone generator 22 changes the characteristic of the tone. Since the previously stored characteristic is retained until is instructed, the process directly returns to step S204.

On the other hand, the determination result of step S322 is negative, that is, the value of AFTER is the PEA currently held.
If it is less than the value of K, the process proceeds to step S324.

In step S324, the pedal value stored in PEDAL is calculated by referring to the pedal value-rate conversion table in which the rate converted according to the pedal value-rate conversion curve (FIG. 4) is stored in association with the pedal value. Convert to. Then, the value is stored in PEDAL. Here, "rate" means when the after-touch value held by PEAK is attenuated toward the after-touch value stored in AFTER that is lower than the after-touch value held by PEAK. It shows the rate of attenuation of. This attenuation is performed by sequentially subtracting the rate value stored in PEDAL from the after-touch value stored in PEAK, as will be understood from steps S326 and S328 described later. When the process of step S324 ends, the process proceeds to step S326.

In step S326, it is determined whether or not the result of subtracting the value of PEDAL from the value of PEAK is less than the value of AFTER. If the determination result of step S326 is negative, that is, if the result of subtracting the value of PEDAL from the value of PEAK is less than the value of AFTER, the process proceeds to step S328.

In step S328, the result of subtracting the value of PEDAL from the value of PEAK is stored in PEAK, and the after-touch value stored in PEAK and held in peak is updated and attenuated. Thus, P
According to the value of the rate stored in EDAL, the peak-held after-touch value will be gradually attenuated. When the process of step S328 ends, the process of step S310 is performed, and the process returns to step S204.

On the other hand, if the determination result of step S326 is affirmative, that is, if the result of subtracting the value of PEDAL from the value of PEAK is less than the value of AFTER, the process proceeds to step S320, and the value of AFTER is stored in PEAK. Then
Proceed to step S310 to perform processing, and then step S20.
Return to 4.

That is, as described above, when the after-touch value held by PEAK is attenuated, PEAK
The after-touch value held in step A is attenuated according to the rate toward the after-touch value stored in AFTER. At this time, after-sales stored in PEAK
In order to prevent the value obtained by subtracting the rate value stored in PEDAL from the touch value from falling below the after-touch value stored in AFTER, the determination in step S326 is performed. And PEA
AFTE is the result of subtracting the value of PEDAL from the value of K.
If it is less than the after touch value stored in R,
In step S320, the value of AFTER is PEAK.
The after-touch value that is peak-held is prevented from becoming less than the after-touch value stored in AFTER.

FIG. 5 shows the AFTE in the decay mode.
An example of the change in the after-touch value stored in R and the peak-held after-touch value stored in PEAK is shown, and the solid line shows the change in the after-touch value stored in AFTER. There is. PEAK
The change in the peak-and-hold after-touch value stored in is only for the attenuation part indicated by the one-dot chain line AFTE.
Other than the change in the after-touch value stored in R, the others are the same.

As shown in FIG. 5, as the after-touch value of AFTER increases, the after-touch value of PEAK also increases. And AFTE
As the after-touch value of R decays, the after-touch value of PEAK also gradually decays according to the rate, but when the after-touch value of PEAK matches the after-touch value of AFTER, the after-touch value of AFTER -It does not fall below the touch value and decay further. When the after-touch value of AFTER increases, the after-touch value of PEAK also follows and increases.

Note that the above-described embodiments have the following modifications.

(1) In the above embodiment, the after-touch value based on the after-touch is processed.
However, the present invention is not limited to this, and it may be possible to process musical tone control data other than after touch, which basically takes a continuous value and changes with time. Further, such tone control data may be assigned to an operator operated during performance.

As an example of the above-mentioned tone control data,
As defined by the MIDI standard, "pitch bend", "modulation depth", "portamento time", "breath control",
"Expression", "Main Volume",
"Panpot", "External Effect Depth", "Tremolo Depth", "Chorus Depth", "Celeste Depth"
Depth, Feather Depth and control
There is a message for every number in the change.

It is also possible to simultaneously perform peak hold on a plurality of types of the tone control data described above, or to select the type of tone control data to perform peak hold. Good.

(2) After touch value is "0" to "1"
However, in the case of musical tone control data that takes a value in both positive and negative directions such as pitch bend, the maximum value of peak hold may be compared by an absolute value. In that case, the peak value held by the peak hold (PEA in the above embodiment)
Corresponds to the value recorded in K. ) Is negative,
In the subsequent processing, those having a positive sign may be ignored. Further, the state of ignoring the positive value may be released when the pedal value becomes less than "64" (when the hold of the musical tone is released).

(3) In this embodiment, the value of the tone control data (after touch value in this embodiment) is peak-held, but the value of the tone control data is not peak-held. You may make it hold | maintain simply. That is, the value of the musical tone control data at the time when the pedal value becomes "64" or more (at the time when the musical tone is held) may be maintained as it is. In that case, when the pedal value becomes less than "64" (when the hold of the musical tone is released), the hold of the musical tone control data is ended, and the current value of the musical tone control data is set to the characteristic of the musical tone being sounded. Although it is reflected, in that case, the held value may be instantaneously changed to the current value,
It may be gradually attenuated and then transferred.

Even when the value of the musical tone control data is peak-held as in this embodiment, the musical tone control data holding is terminated when the pedal value becomes less than "64", and the musical tone control data is held. When the current value of is reflected in the characteristics of the musical tone being sounded, the held value is instantly changed to the current value (in the case of the present embodiment: step S314 →
(Step S308), or may be gradually attenuated and transferred.

(4) In the holding mode of the above-mentioned embodiment, when the pedal value becomes less than "64", the musical tone being held shifts to the release state, and at the same time, the after-touch value is released from the holding state and becomes the present value. However, without being limited to this, the held after touch value may be held until the musical sound is released and completely muted.

Further, in the electronic musical instrument having a plurality of musical tone generating means (voices), the pedal is held even after the voice being held is shifted to the released state when the pedal value becomes less than "64" as described above. The after-touch value may be maintained. Furthermore, in such a case, regarding the voice that has been released,
Aftertouch value is kept, but pedal value is "6".
For voices that have newly started to be sounded after the time point of less than "4", the hold state may be invalidated so that the current value of the after touch is reflected in the characteristics of the sounded sound.

(5) In this embodiment, the switches (PEAKSW and MODESW) arranged on the panel 20 are used to set whether or not to perform peak hold and to set the peak hold mode. However, these settings may be stored as tone color parameters for each tone color. Further, in that case, those settings may be changed by an operator provided on the panel, and the changed contents may be stored.

(6) In this embodiment, the electronic musical instrument provided with the musical tone generating section 22 as the musical tone generating means has been described, but the musical tone generating means is not provided, and the key depression / key release operation of the keyboard portion is concerned. The present invention may be applied to an electronic musical instrument that outputs information to an external sound source device by a MIDI signal or the like.

In the electronic musical instrument as described above, the after-touch value is transmitted to the outside by a MIDI signal or the like. However, in the external sound source device, when the transmission signal from the electronic musical instrument is received. Only when the signal is not sent from the electronic musical instrument, the value of the sending signal received immediately before is received, and then the new sending signal is received. It is designed to be held until you do.

Therefore, in the above-described electronic musical instrument, when the peak hold operation is performed, the after-effect is applied to the sound source device only when the held value by the peak hold is updated by a larger after-touch value. The touch signal may be transmitted, and in other cases, the after-touch signal may be stopped. That is, even if such processing is performed, the value of the transmitted signal is held in the external sound source device, so that no problem occurs.

(7) In this embodiment, the electronic musical instrument in which one tone color is composed of only one element tone has been described, but the electronic musical instrument in which one tone color is composed of a plurality of element tones In addition, the present invention may be implemented. In that case, it may be possible to select whether or not to perform peak hold for each of a plurality of element sounds, or to set the peak hold mode independently for each element sound. May be.

(8) In the present embodiment, the values that the pedal value can take are "0" to "127", and the pedal value is judged to be "64" or more or less than "64". However, the possible values of the pedal value may be only two values of "0" or "1". In that case, a stepped state may correspond to "1", and a non-depressed state may correspond to "0". Then, the criterion for determining whether to perform the peak hold may be whether the pedal value is "1" or "0".

In this case, the MODES for selecting the peak hold mode may not be provided, and the attenuation mode may not be executed and only the holding mode may be executed.

(9) In this embodiment, the musical tone is held when the pedal value is "64" or more, and the musical tone control data is peak-held in the holding mode. The peak of
You may make it hold only.

The present invention may be carried out by appropriately combining the present embodiment described above and the modifications described in the above (1) to (9).

[0086]

Since the present invention is constructed as described above, it has the following effects.

When the musical tone control data processing device in the electronic musical instrument which can generate musical tones having different characteristics and hold the musical tone being sounded based on the musical tone control data for changing the characteristic of the musical tone is held. , The tone control data of the tone being sounded is also held, and due to the characteristics of the tone based on the held tone control data,
Since the pronunciation of the musical sound being held is controlled, the characteristic of the musical sound being sounded does not change while the musical sound is being held, so that unnaturalness in playing music can be eliminated.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electronic musical instrument provided with a musical tone control data processing device according to an embodiment of the present invention.

FIG. 2 is a flowchart of an initialization routine.

FIG. 3 is a flowchart of a 10 msec interrupt processing routine.

FIG. 4 is an explanatory diagram showing a pedal value-rate conversion curve for creating a pedal value-rate conversion table.

FIG. 5 is an explanatory diagram showing a change in after-touch value in the attenuation mode.

[Explanation of symbols]

 10 CPU 12 10 msec Timer 14 Keyboard 16 ROM 18 RAM 20 Panel 22 Musical Sound Generator 24 Sound Emitting Unit 26 Speaker 28 Pedal

Claims (1)

[Claims] 1. A musical tone control data processing device in an electronic musical instrument, which can generate musical tones having different characteristics based on musical tone control data for changing the characteristic of musical tone and hold the musical tone being sounded, hold the musical tone being sounded. A tone control data processing device characterized in that at the same time, the tone control data of a tone being sounded is also held, and the tone generation of the held tone is controlled by the characteristics of the tone based on the held tone control data.