JPH0934458A - Musical sound control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a musical sound control device which can specify whether a touch response is given to every key area in which a key area is divided. SOLUTION: When a predetermined key is pressed by operating a split point setting switch 2b under a split mode SP, a key area is divided at the boundary of a key and further, either one of a touch response or a fixed touch is arbitrarily given to every key area in response to the operation of a key velocity setting switch 2d. Therefore, for instance, when a melody performance is made on an upper key area UK side while making a chord performance on a lower key area LK side, a desired fixed touch is set in the lower key area LK, and on the other hand, a touch response can be given on the upper key area UK side, so that a musical performance effect intended by a player may be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone control device suitable for use in a keyboard electronic musical instrument such as an electronic piano.

[0002]

2. Description of the Related Art Conventionally, there has been known a touch response for controlling a volume of a generated musical sound or the like according to a key depression method, that is, a key touch. For touch response, a method to detect the key pressing speed to control the initial touch and a method to control the aftertouch by detecting the operation of pressing the key more strongly (deeply) while the key is being pressed For example, in a tone control device that detects an initial touch, normally, the key pressing speed is detected based on the on-time difference between two key switches provided on each key of the keyboard, and the detected key pressing speed is used as velocity information. Tone control after converting to.

[0003]

In such a conventional musical tone control apparatus, an operation switch for designating whether or not a touch response is given is provided, and when the switch is off, the operation speed depends on the key pressing speed. Instead, a certain velocity is generated, and on the other hand, when the switch is set to ON, a velocity corresponding to a key depression operation is often generated to control a musical sound. By doing this, beginners unfamiliar with keyboard operation can play without touch response, while those with good keyboard operation can play with touch response. .

When performing with accompaniment, the player performs chord performance in the left key range (lower key range) while performing melody in the right key range (upper key range). In this case, the chord performance is performed. It is preferable in terms of music to sound at a constant volume, and to play the melody at a volume accompanying the key pressing speed so as to reflect emotions. However, in the above configuration, when a touch response is added, a touch response is also added to the chord playing operation, and a person unfamiliar with the keyboard operation can perform the chord playing at a constant volume,
There may be a case where the melody performance cannot be performed at a undulating volume, which is not preferable in terms of performance effect.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a musical tone control device capable of designating whether or not a touch response is given to each of the divided key ranges. .

[0006]

In order to achieve the above object, in the invention described in claim 1, the instruction means for instructing to divide the keyboard into a plurality of key ranges and the key range division by this instructing means. For each key range divided by being instructed,
Setting means for respectively setting touch conditions of either outputting touch data according to a key pressing speed when a key pressing operation is performed or outputting specific touch data,
When the key pressing operation is performed in the state where the key range is instructed by the instructing means, it is determined which key range the key belongs to, and the key range including the key is set. And a control means for controlling the characteristics of the musical tone generated based on the touch data output according to the touch condition being set.

According to a second aspect of the present invention, which depends on the first aspect, the setting means individually assigns a tone color to each of the divided key ranges. In the invention according to claim 3 subordinate to claim 1, the instructing means has an operator for instructing key range division, and when the operator is operated, the key pressed is a boundary. It is characterized by instructing key division. Further, according to the invention of claim 4 which depends on claim 1, the setting means has a setting operator for instructing condition setting, and the key is pressed with a speed at which a desired velocity is generated. It is characterized in that the velocity value of the specific touch data is set by releasing the key after the setting operator is turned off.

According to the invention described in claim 5, an instruction means for instructing to divide the keyboard into a plurality of key ranges, and a key range division by the instructing means for each divided key range. A touch condition that either assigns a tone color and outputs touch data corresponding to the key depression speed when a key depression operation is performed according to the type of the assigned tone color, or outputs specific touch data. When the key pressing operation is performed in the state in which the key division operation is instructed by the setting means for respectively setting the key range, the key range is determined, and the key range is determined. It is characterized by comprising control means for controlling the characteristics of the musical tone to be generated according to the type of tone color set for the key range including and the touch condition associated with that tone color.

According to the present invention, when the instructing means instructs the keyboard to be divided into a plurality of key ranges, the setting means causes each key range divided according to the instruction to depress a key when a key is depressed. The touch condition is set to output touch data according to speed or to output specific touch data, and the control unit determines which key range when the key is pressed. Is included in the key range, and the characteristic of the musical sound generated based on the touch data output according to the touch condition set for the key range including the key is controlled. As a result, it becomes possible to specify whether or not to add a touch response to each of the divided key ranges.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A musical tone control apparatus according to an embodiment of the present invention will be described below as an example with reference to the drawings. A. Configuration of Example FIG. 1 is a block diagram showing an overall configuration of a musical tone control apparatus according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a keyboard, which detects a key pressing operation for each key and generates performance information such as a key-on / key-off signal, a key code or a key pressing speed signal corresponding to the detected key pressing operation. . Reference numeral 2 denotes a panel switch section arranged on the operation panel. Here, various switches provided in the panel switch unit 2 will be described with reference to FIG.

In FIG. 2A, reference numeral 2a is a mode switch which turns on / off the power source of the apparatus in response to a slide operation and generates an operation signal for designating an operation mode after the power source is turned on. When the switch 2a is in the "OFF" position, the power supply for the apparatus is turned off. On the other hand, when the switch 2a is in the "NOR" or "SP" position, the device power is turned on, the normal mode is set in the "NOR" state, and the split mode is set in the "SP" state. The normal mode NOR refers to a mode in which the keys are not divided and all keys have the same conditions (timing, whether touch response is given or not). On the other hand, the split mode SP is a mode in which the key range is divided based on a split point, which will be described later, and whether or not a touch response is given for each divided key range. In this embodiment, when the key range is divided under the split mode SP, a desired tone color can be assigned to each key range.

Reference numeral 2b denotes a split point setting switch operated when designating a key range division key under the above-mentioned split mode SP. As will be described later, by pressing a predetermined key after operating this switch 2b,
The keyboard 1 is divided into an upper key range UK and a lower key range LK. For example, when operating the switch 2b while depressed the keyboard C ₃ sounds, or more key ranges C ₃ sound becomes the upper key range UK, B ₂ sounds below is set in the Lower key range LK. Next, in FIG. 2B, 2c is, for example,
A numeric keypad operated when setting a tone number. Two
d is a key velocity setting switch. The switch 2d is an operator for designating whether or not to give a touch response, and whether or not to give a touch response to the upper key range UK and the lower key range LK set under the split mode SP. To set.

Next, returning to FIG. 1 again, the description of the configuration of the embodiment will be continued. In FIG. 1, 3 is an LCD panel 3.
It is a display unit composed of a, LEDs 3b, 3c, etc.,
The operation and operation state of the panel switch unit 2 described above are displayed. On the LCD panel 3a, a mode corresponding to the operation of the panel switch section 2 is displayed. For example, as shown in FIG. 4, while operating the split point setting switch 2b under the split mode SP, the keyboard of the C ₃ note is pressed to divide the keyboard 1 into the keyboard range, and the touch response to the upper keyboard range UK is made. When the touch response is set to OFF and the tone number "06" is assigned to the lower key range LK of the B ₂ note or lower, while the tone color number "01" is assigned to ON, the various settings are shown in FIG. It is displayed on the LCD panel 3a in the illustrated manner.

In FIG. 3, "SP" indicates the split mode, and "C ₃ " indicates the pitch of the key range division key. Further, "TN" represents a tone color number, and indicates that the tone color number "06" is assigned to the lower key range LK side and the tone color number "01" is assigned to the upper key range UK side. Further, “TR” indicates whether or not the touch response is added, and in this case, the lower key range LK side is the “OFF” state in which the touch response is not added, while the upper key range UK side is the “ON” state in which the touch response is added. Is set to. When the upper key range UK is pressed in such a set state, the LED 3b (see FIG. 2B) indicating the touch response addition is lit and displayed, while the LE key is operated when the lower key range LK is pressed.
D3c is lit and displayed, indicating that the velocity is constant without giving a touch response.

Next, in FIG. 1, reference numeral 4 denotes performance information supplied from the keyboard 1 via the bus B and the panel switch section 2.
This is a CPU that instructs musical tone control to a sound source 7 (described later) according to an operation signal supplied from. Further, the CPU 4 is
Display control data is generated based on the above-mentioned performance information and operation signal, and is supplied to the display unit 3 via the bus B to control the display. Reference numeral 5 denotes a ROM, which stores various control programs loaded into the CPU 4 and various data used in these programs, such as a touch curve shown in FIG. The touch curve shown in FIG. 5 is a linear characteristic that produces velocity according to the key pressing speed, but it may be set to an arbitrary nonlinear characteristic instead of this, and when a touch response is given based on this touch curve. The velocity of is determined.

A RAM 6 is used as a work area for the CPU 4, and temporarily stores various calculation results, register / flag data and the like. The sound source 7 is constituted by, for example, a well-known waveform memory reading method, is provided with a plurality of simultaneous tone generation channels for polyphonic sound generation, and synthesizes a musical tone of a tone color according to the performance information supplied from the CPU 4, and makes it a velocity. Output at the appropriate level. Reference numeral 8 denotes a sound system, which amplifies the output of the sound source 7 and outputs the sound from the speaker.

B. Operation of Embodiment Next, the operation of the embodiment having the above configuration will be described with reference to FIGS.
2 will be described. Here, the operation of the main routine will be briefly described, and then each operation of various setting processing routines and performance processing routines called in the main routine will be sequentially described.

(1) Operation of Main Routine First, when the musical tone control apparatus according to this embodiment is powered on, the CPU 4 loads a predetermined control program from the ROM 5 and executes the main routine shown in FIG. The process proceeds to SA1. If you proceed to step SA1, CP
U4 performs an initialization process of resetting or initializing various registers and flags set in the work area of the RAM6. When the switch 2a is operated to turn on the power supply of the apparatus and the switch 2a is set to the split mode SP position, the CPU 4
Stores a preset value in various registers to be described later and transits to the split mode.

Then, in the next step SA2, C
The PU 4 performs mode setting, split point setting, tone color setting, and touch response setting according to the operation of the switches 2a to 2d described above. Then, in step SA3, performance processing is performed in response to a key depression operation performed under the set conditions, and in step SA4, other processing such as displaying the set conditions on the display unit 3 is executed. After that, until the power is turned off, the above steps SA2 to
Repeat SA4.

(2) Operation of Various Setting Processing Routines Here, a mode processing routine, a split point setting processing routine and a tone color setting processing routine which constitute various setting processing routines which are processed according to the operation of the switches 2a to 2d described above. Each operation of the touch response setting processing routine will be described.

Operation of Mode Processing Routine When the mode processing routine shown in FIG. 8 is executed via step SB1 in FIG. 7, the CPU 4 advances the processing to step SC1 to determine the set position of the mode switch 2a.
Here, when the mode switch 2a is set to the position for selecting the normal mode NOR, step SC2
Then, the split mode flag stored in the register SPF is set to "0". This flag indicates whether or not the split mode SP,
When it is "0", it means that it is the normal mode NOR. Then, when proceeding to the next step SC2, the CPU 4 erases the display based on the contents of the registers LTN, LTR and SPR.

The register LTN is a lower key range L.
This is a register for storing the tone color number assigned to K. The register LTR is a touch response state of the lower key range LK (touch response is added when "1",
This is a register that stores a fixed touch when "0". The register SPR is a register in which the split point (key code of the key range division key) is stored. Therefore, in the case of normal mode NOR,
The tone color number assigned to the lower key range LK, the touch response state of the lower key range LK, and the note name of the key range divided key are not displayed from the LCD panel 3a based on the process of step SC2.

On the other hand, when the mode switch 2a is set to the position for selecting the split mode SP, the process proceeds to step SC4, the split mode flag stored in the register SPF is set to "1", and then, At step SC5, the registers LTN, LTR and SPR are registered.
Is displayed on the LCD panel 3a. A prescribed value (factory preset value) is set in these registers LTN, LTR and SPR by an initialization process when the power is turned on. That is, at the time of initialization, the CPU 4 reads the factory preset value from the ROM 5 and sets it in the registers LTN, LTR and SPR. Then, these registers LTN, LTR
The contents of SPR and SPR are appropriately updated by a split point setting processing routine, a tone color setting processing routine, and a touch response setting processing routine, which will be described later, which are executed in response to the operation of the switches 2b to 2d described above.

Split Point Setting Processing Routine When the mode setting processing is performed in this manner, the CPU 4 executes the split point setting processing routine shown in FIG. 9 through step SB2 (see FIG. 7) and advances the processing to step SD1. In step SD1, it is determined whether or not the split point setting switch 2b (see FIG. 2A) has been operated. If not operated, the determination result is "NO", and this routine is completed. On the other hand, when it is operated, the determination result is “YES”, and the process proceeds to the next step SD2. In step SD2, it is determined whether the plit mode flag stored in the register SPF is "1", that is, whether the split mode SP is under the split mode SP. When in normal mode NOR,
Since there is no need to divide the key range, the determination result is "NO", and this routine is completed.

On the other hand, when in the split mode SP, the determination result of the above step SD2 is "YES".
Then, the process proceeds to step SD3. Step SD
When proceeding to 3, the CPU 4 determines whether or not there is a key depression operation for dividing the key range. Here, when the key is not pressed, it is considered that the split point is not set, and the determination result is "NO", and this routine is completed. On the other hand, if there is a key press, the determination result here is "YES", and the process proceeds to step SD4. At step SD4, the key code of the depressed key is stored in the register SPR.
Then, in the next step SD5, this register SPR is
The key code set to is converted into a pitch name and the display on the LCD panel 3a is updated.

Tone Color Setting Processing Routine Next, the CPU 4 executes the tone color setting processing routine shown in FIG. 10 through step SB3 (see FIG. 7) and advances the processing to step SE1. In step SE1, it is determined whether or not the ten key 2c has been operated. If not operated, the determination result is "NO", and this routine is completed. On the other hand, when operated, the judgment result is "Y
ES ”, and the process proceeds to the next step SE2. In step SE2, it is determined whether the split mode flag stored in the register SPF is "1", that is, whether the split mode SP is under the split mode SP. Normal mode NO
When it is R, there is no need to assign a tone color to each key range, so the determination result is "NO", and step S described later is performed.
The process proceeds to E5.

On the other hand, in the split mode SP, the determination result is "YES", and the process proceeds to the next step SE3. When proceeding to step SE3, the CPU 4 determines whether or not a key has been pressed. Here, when the key is not pressed, the determination result is "NO", and the process proceeds to step SE5 described later. On the other hand, when the key is pressed, the determination result is "YES", and the process proceeds to step SE4. At step SE4, it is determined whether the key code KN of the depressed key is less than or equal to the key code of the key range division key stored in the register SPR, that is, whether the key code of the upper key range UK is pressed or the lower key range. It is identified whether the key is pressed by LK.

If it is the key depression of the upper key range UK, the result of the judgment here becomes "YES", and step S
The process proceeds to E5. At step SE5, the register R
Set the tone color number entered on the numeric keypad to TN. Then, in the next step SE6, the display of the LCD panel 3a is updated based on the new tone color number stored in the register RTN. On the other hand, when the key is pressed in the lower key range LK, the determination result of step SE4 is "N".
"O" and the process proceeds to step SE7. In step SE7, the CPU 4 sets the tone color number input by the ten keys in the register LTN. And the next step SE
At 8, the display on the LCD panel 3a is updated based on the new tone color number stored in the register LTN.

Touch Response Setting Processing Routine When the tone color setting processing is performed in this way, the CPU 4 executes the touch response setting processing routine shown in FIG. 11 via step SB4 (see FIG. 7), and step SF
The process proceeds to 1. First, in step SF1, the process branches depending on a switch event that occurs in response to an operation of the key velocity setting switch 2d (see FIG. 2B). Here, when the switch 2d is pressed to generate an ON event, or when the event does not change during the pressing, this routine is completed. On the other hand, switch 2d
When is changed from the on state to the off state and an off event occurs, the process proceeds to the next step SF2.

When the process proceeds to step SF2, the CPU 4 determines whether or not the key depression operation is performed. The key depression operation is performed to set a fixed touch, and the velocity corresponding to the key depression speed at that time is set. Therefore, when the key is pressed, the determination result is “YES”, the process proceeds to step SF3 and thereafter, and the process of setting the fixed touch is performed. On the other hand, when the key depression operation has not been performed, the process proceeds to step SF10 and the subsequent steps for providing a touch response. In the following, the description will be continued by classifying each process.

A. Process of setting fixed touch When a key is pressed to set fixed touch, the CPU
4 determines step SF3 after the determination in step SF2.
Then, it is judged whether the split mode flag stored in the register SPF is "1", that is, whether the split mode SP is under the SP. Here, split mode SP
If YES, the determination result is “YES”, and the process proceeds to the next step SF4. On the other hand, normal mode NO
When it is R, the determination result is “NO”, and the process proceeds to step SF5 described later. Then, proceeding to step SF4, the CPU 4 determines whether or not the key code KN of the previously depressed key is less than or equal to the key code of the key range division key stored in the register SPR, that is, the upper key range UK is depressed. Determine if it is a key. If the key is in the upper key range UK, the determination result is "YES", and the next step SF
Go to 5.

Upper key range U under split mode SP
When the K side is pressed, or when the key is pressed in the normal mode NOR regardless of the key range, the process proceeds to step SF5, where "0" is set in the register RTR and the value of the register VL is set in the register RTD. To do. The register RTR temporarily stores a flag indicating whether or not a touch response is given to all keys under normal mode NOR, and a touch response on the upper key range UK side under split mode SP. When it is "1", the touch response is given, and when it is "0", the fixed touch is given. Therefore, in this case, all keys are set under the normal mode NOR, and a fixed touch is set on the upper key range UK side under the split mode SP.

The register RTD is a register for temporarily storing a constant velocity value given to all keys under the normal mode NOR and to the upper key range UK side under the split mode SP. The value of VL is written. In the register VL, a velocity value corresponding to the key pressing speed when the previous key pressing operation is performed is stored in the performance process described later.

Then, in step SF6, the CPU
4 updates the display of the LCD panel 3a based on the contents stored in the registers RTR and RTD, and subsequently, in step SF7, the LED 3b (see FIG. 2B) is turned off and no touch response is given. While indicating the setting, the LED 3c is turned on to indicate that the constant velocity is set without giving the touch response.
On the other hand, when the result of the determination in step SF4 is "NO", that is, when the key is pressed on the lower key range LK side, the process proceeds to step SF8 and "0" is stored in the register LTR as in step SF5 described above. While the value of the register VL is set in the register LTD.
Next, in step SF9, the registers LTR and LT
The display of the LCD panel 3a is updated based on the contents stored in D, and then the process proceeds to step SF7 described above, where the LED
Only 3c is lit to indicate that a certain velocity has been set.

As described above, when the operator turns off the key velocity setting switch 2d, the upper key range UK side (or the lower key range LK side) is depressed under the split mode SP, or the normal mode NOR. If the key is pressed regardless of the key range, the velocity value corresponding to the key pressing speed is set as a fixed touch for each key in the upper key range UK (or the lower key range LK side). To be done.

B. Processing for giving touch response In this case, the CPU 4 advances the processing to step SF10, and determines whether or not it is under the split mode SP. In the split mode SP, the determination result is “YES”, and the process proceeds to the next step SF11. On the other hand, in the normal mode NOR, the determination result is “NO”, and the process proceeds to step SF12 described later. When the processing proceeds to step SF11, the CPU 4 determines whether or not the key code KF of the finally released key is less than or equal to the key code of the key range division key stored in the register SPR, that is, the release within the upper key range UK. Determine if it is a key. If the key is released within the upper key range UK, the determination result is "YES", and the process proceeds to the next step SF12.

In step SF12, "1" is set in the register RTR to indicate that a touch response has been given. Then, in step SF13, the display on the LCD panel 3a is updated based on the contents stored in the register RTR. Then, in step SF14, the LED 3c is turned off and the LED 3b is turned on to indicate that the touch response is given. On the other hand, the above step SF11
Is “NO”, that is, the lower key range L
When the key release operation is performed on the K side, step SF15
The process proceeds to step S12 and "1" is set in the register LTR as in step SF12 described above. Then, step S
After proceeding to F16, the display of the LCD panel 3a is updated based on the contents stored in the register LTR, and then proceeding to step SF14, the LED 3b is turned on to indicate that the touch response is given.

(3) Operation of Performance Processing Routine Next, the operation of the performance processing routine performed after the above-mentioned various setting processing is completed will be described with reference to FIG. Step S of the main routine (see FIG. 6) described above
When this routine is activated via A3, the CPU 4 advances the process to step SG1 and determines the key state. Here, when the key-on operation is performed and a key-on event occurs, the CPU 4 advances the processing to step SG2, and sets the key code of the key pressed in the register KN. Next, in step SG3, it is determined whether or not the split mode SP is under, and performance processing according to the set mode is performed. The performance processing for each mode will be described below.

In the case of normal mode NOR and the value of register RTR is "0" In this case, the determination result of the above step SG3 is "NO", and the process proceeds to step SG5. Step SG5
Then, it is determined whether the value of the register RTR is "1", that is, whether the touch response is given to the upper key range UK side. The value of register RTR is "0", that is,
When the result of the determination in step SG5 is "NO", the process proceeds to step SG6. In step SG6, the fixed velocity value stored in the register RTD is set in the register VL.

Next, in step SG7, the LED 3c is turned on and the LED 3b is turned off to display the state in which the fixed touch is valid. Then, when proceeding to step SG8, the CPU 4 supplies the performance information consisting of "timbre number", "velocity" and "key code" stored in the registers RTN, VL and KN to the sound source 7, and responds to this performance information. To instruct the pronunciation of the musical sound that is formed. As described above, in the normal mode NOR and when the touch response is not given, the musical tone is formed based on the fixed touch and the tone color assigned to the upper key range UK side.

In the normal mode NOR and the value of the register RTR is "1" In this case, the judgment result of the above-mentioned step SG5 is "YE".
S ”, and the process proceeds to step SG9. In step SG9, in order to give a touch response, the key pressing speed is converted into velocity data by referring to a predetermined touch curve and stored in the register VL. Next, in step SG10, the LED 3c is turned off to display the state in which the touch response is valid,
Turn on 3b. Then, after this, the process proceeds to step SG8 to instruct the generation of a musical sound based on the contents of the registers RTN, VL and KN.

In the split mode SP, a key operation is performed within the upper key range UK and the value of the register RTR is "0". In the split mode SP, the above-described step S is performed.
The determination result of G3 is "YES", and the process proceeds to step SG4. In step SG4, it is determined whether or not the depressed key is within the upper key range UK, and if so, the determination result is "YES", and the flow proceeds to step SG5 described above. In this case, the determination result of step SG5 is "NO".
Then, the process proceeds to step SG6. In step SG6,
The fixed velocity value stored in the register RTD is set in the register VL. Next, when proceeding to step SG7, L is displayed to display the state in which the fixed touch is valid.
The ED 3c is turned on and the LED 3b is turned off. Then, when proceeding to step SG8, the CPU 4 registers the registers RTN and VL.
Performance information consisting of "tone color number", "velocity" and "key code" stored in KN and KN is supplied to the sound source 7 to instruct the generation of a musical tone formed according to this performance information.

When the key is depressed in the upper key range UK in the split mode SP and the value of the register RTR is "1". If the value of the register RTR is "1", the above step SG is performed.
The determination result of 5 is "YES", the process proceeds to step SG9, and in order to give a touch response, the key pressing speed is converted into velocity data by referring to a predetermined touch curve and stored in the register VL. Next, in step SG10, the LED 3c is turned off and the LED 3b is turned on to display the state in which the touch response is valid. Then, after this, the process proceeds to step SG8 to instruct the generation of a musical sound based on the contents of the registers RTN, VL and KN.

In the split mode SP, when the key operation is performed within the lower key range LK and the value of the register LTR is "1". Now, when the key operation is performed on the lower key range LK side under the split mode SP. , The above-mentioned judgment result of step SG4 becomes “NO”, and the CPU 4 makes a decision at step SG11.
And the value of the register LTR is “1”, that is,
It is determined whether or not the touch response is provided. Here, when the touch is valid, the determination result is “NO”, and the process proceeds to the next Step SG12.

In step SG12, in order to give a touch response, the key pressing speed is converted into velocity data by referring to a predetermined touch curve, and the register V is added.
Store in L, and then, in step SG13, LED3
c is turned off and LED 3b is turned on to display that the touch response is valid. Then, after that, the process proceeds to step SG14, where performance information including "timbre number", "velocity" and "key code" stored in the registers LTN, VL and KN is supplied to the sound source 7, and in response to this performance information. To instruct the pronunciation of the musical sound that is formed.

In the split mode SP, when the key is pressed within the lower key range LK and the value of the register LTR is "0", on the other hand, the judgment result in the step SG11 is "N".
In the case of “O”, that is, when the touch response is not given to the lower key range LK, the process proceeds to step SG15 as in the normal mode NOR described above, and the register L
The fixed velocity value stored in TD is set in register VL. Next, in step SG16, the LED 3c is turned on and the LED 3b is turned off to display the state in which the fixed touch is valid. Then, step SG14
Then, instruction is made to generate a musical tone based on the contents of the registers LTN, VL and KN.

When the key is released and a key-off event occurs, the result of the determination in step SG1 is "NO", and the CPU 4 advances the process to step SG17 to store the key code of the released key in the register KF. Store. Next, at step SG18, the tone generator 7 is instructed to mute the musical tone corresponding to the key code set in the register KF, and this routine is completed.

As described above, in this embodiment, the split point setting switch 2 is operated under the split mode SP.
When a predetermined key is pressed by operating b, the key area is divided at that key, and further, according to the operation of the key velocity setting switch 2d, either touch response or fixed touch can be arbitrarily performed for each key area. It can be granted.
Thus, for example, when a person unfamiliar with keyboard operation plays a melody on the upper key range UK side while playing a chord on the lower key range LK side, a desired fixed touch is set on the lower key range LK, while By giving a touch response to the upper key range UK side, it is possible to perform without worrying about the balance of key touches between the lower key range LK and the upper key range UK, and to achieve the performance effect intended by the performer. Can be realized. Moreover, in the present embodiment, since the tone color can be independently assigned to each key range, it is possible to further enhance the playing effect.

In the above-described embodiment, when a fixed touch is given, the velocity corresponding to the key pressing speed can be set, but not limited to this, for example,
A predetermined fixed velocity may be uniquely given, and by doing so, the device function can be simplified. Further, in the present embodiment, the tone color is assigned to each divided key range, but instead of this, for example, a touch response is given or a fixed touch is given according to the type of tone color assigned to each key range. You can That is, depending on the tone color, it may be musically preferable to produce a tone with a constant velocity without attaching the touch response. Therefore, a method of setting the tone color number and the touch content in association with each other is also effective. Further, in the present embodiment, the key range is divided into the lower key range LK and the upper key range UK, but the present invention is not limited to this, and may be divided into three or more key ranges.

[0050]

According to the present invention, when the instructing means instructs the keyboard to be divided into a plurality of key ranges, the setting means performs the key depression operation for each of the divided key ranges. The touch condition is set to output touch data according to the key pressing speed or output specific touch data, and when the key pressing operation is performed, the control unit outputs the key. Since it is determined which key range is included and the characteristic of the musical sound generated based on the touch data output according to the touch condition set for the key range including the key is controlled, the key range is divided. Whether or not a touch response is given can be designated for each key range, and a performance effect intended by the performer can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment according to the present invention.

FIG. 2 is a diagram showing an outer appearance of a panel switch unit 2 in the embodiment.

FIG. 3 is a diagram showing a display example of a display unit 3 in the embodiment.

FIG. 4 is a diagram for explaining an example of key range division according to the embodiment.

FIG. 5 is a diagram showing an example of a touch curve.

FIG. 6 is a flowchart for explaining the operation of the main routine in the embodiment.

FIG. 7 is a flowchart for explaining the operation of various setting processing routines in the embodiment.

FIG. 8 is a flowchart for explaining the operation of a mode processing routine in the same embodiment.

FIG. 9 is a flowchart for explaining the operation of a split point setting processing routine in the same embodiment.

FIG. 10 is a flowchart for explaining the operation of a tone color setting processing routine in the embodiment.

FIG. 11 is a flowchart for explaining an operation of a touch response setting processing routine in the embodiment.

FIG. 12 is a flowchart for explaining the operation of a performance processing routine in the embodiment.

[Explanation of symbols]

1 keyboard 2 panel switch section (operator) 3 display section 4 CPU (key range dividing means, touch condition setting means, musical sound forming means) 5 ROM 6 RAM 7 sound source (musical sound forming means) 8 sound system

Claims (5)

[Claims] 1. An instruction means for instructing to divide a keyboard into a plurality of key ranges, and a key depression operation is performed for each divided key range by instructing the key range division by this instructing means. Setting means for setting touch conditions for outputting touch data according to the key pressing speed or outputting specific touch data, and an instruction for key range division by the above-mentioned instructing means. Touch data that is output according to the touch condition set for the key range including the key when the key is pressed in the state where the key is pressed. And a control means for controlling the characteristic of the musical sound generated based on the above. 2. The musical tone control apparatus according to claim 1, wherein the setting means individually assigns a tone color to each of the divided key ranges. 3. The instructing means has a manipulator for instructing a key range division, and when the manipulator is operated, the instructing means instructs a key range division with a key pressed as a boundary. Claim 1
Musical tone control device described 4. The setting means has a setting manipulator for instructing a condition setting, and is operated by turning off the setting manipulator while releasing the key while the key is pressed at a speed at which a desired velocity is generated. The musical tone control apparatus according to claim 1, wherein a velocity value of the specific touch data is set. 5. An instruction means for instructing to divide the keyboard into a plurality of key ranges, and a tone color is assigned to each of the divided key ranges by the instruction of the key range division by the instructing means. Setting means for respectively setting touch conditions of either outputting touch data according to the key pressing speed when a key pressing operation is performed according to the type of tone color or outputting specific touch data, , When the key area is instructed by the instructing means, when the key operation is performed, it is determined which key area the key belongs to, and the key area including the key is determined. A musical tone control apparatus comprising: a control unit that controls the characteristics of a musical tone to be generated according to the set tone color type and a touch condition associated with the tone color.