JPH06208382A - Assigning device of electronic musical instrument - Google Patents

Abstract

PURPOSE:To easily obtain musical effect by properly selecting an assigning method matching each musical sound corresponding to the timbre of a musical sound generated by a musical sound generating means. CONSTITUTION:The assigning device performs an interruption processing corresponding to detection once the operation of each switch of a panel 18 or a keyboard part 12 is detected. A CPU 10 is interrupted at time intervals of 10msec to perform 10msec timer interruption processes. Here, a switch interruption routine can optionally select history assignment or level assignment by operating a switch SWAS. When keying operation on a keyboard part 12 is performed, a keying interruption routine is performed, a voice buffer is retrieved to judged whether or not there is a free voice, and the free voice is used to generate a musical sound corresponding to the keying. When the set contents of the assignment mode are different from an assignment mode that a player sets, an alarm sound is generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assigning device for an electronic musical instrument, and more specifically, to generate a new musical tone, a predetermined musical tone generator is selected from among a plurality of musical tone generators being sounded. The present invention relates to an assigning device for an electronic musical instrument used when performing

[0002]

BACKGROUND OF THE INVENTION Many electronic musical instruments are generally provided with a plurality of musical tone generators for generating musical tones. Then, in response to a sounding instruction such as a key depression operation of the keyboard device, one of the plurality of sound generators is selected, and the selected sound generator is based on the sounding instruction. Musical tone control parameters such as pitch, tone color, volume, envelope, etc. are given to perform a process of generating a desired musical tone based on a sounding instruction.

An apparatus for performing the above-described processing assigns a tone control parameter corresponding to a sounding instruction to one of the plurality of tone generators (assig).
n: assign) processing, so "as
It is called "signer: assigner" (assign device).

When assigning a musical tone control parameter to a musical tone generator, if there is a musical tone generator for which no musical tone is generated, that musical tone generator is selected and assigned a musical tone control parameter to generate a musical tone. Just go. However, if all of the musical tone generators are generating musical tones, one of the musical tone generators is selected, the musical tone being generated by the selected musical tone generator is deleted, and then a new musical tone generator is created. Musical sounds are generated. In this case, since the musical tone being generated by the musical tone generator will be erased, which musical tone generator should be selected as the musical tone generator for assigning musical tone control parameters becomes a musically important problem. Was there.

Conventionally, in order to generate a new musical tone, various methods have been proposed as a selection processing method for selecting which musical tone generator is selected from the musical tone generators being generated. However, there are two main methods described below.

(1) History assignment This method is a method of selecting a musical tone generator based on a history of musical tone generation, such as selecting a musical tone generator that has started generating musical tones the earliest in time. is there.

(2) Level Assignment This method is a method of comparing the levels of the musical tones generated by the musical tone generators and selecting the musical tone generator that is producing the musical tone of the lowest level.

Of the above-mentioned methods, history assignment is suitable for assigning musical tones of a tone color such as an organ having a continuous tone envelope shown in FIG. 2 (a). It is difficult to evaluate the musical tone of the continuous tone type envelope because the musical tone is not completely attenuated during the key depression, so that there can be a plurality of musical tones of the same level regardless of the age of the key depression. For this reason, it is suitable to assign the tone of the continuous tone type envelope by history assignment such as selecting the tone generator that started to generate the tone with the oldest time.

The level assignment is suitable for assigning musical tones of a tone color such as a piano having the attenuated tone type envelope shown in FIG. 2 (b). In other words, the tone of the decay sound type envelope is attenuated even during key depression, and if the key is released during the decay, the decay speed corresponds to the key release.
It is suitable to assign by assignment.

[0010]

In the conventional electronic musical instruments, the assigning method as described above is fixedly set at the time of designing each electronic musical instrument. For example, if it is an electronic organ that produces a musical tone of an organ tone, history assign is set, and if it is an electronic piano that produces a musical tone of a piano tone, level assign is set. .

However, at present, in such electronic organs and electronic pianos, not only the tone color of the organ or only the tone color of the piano tone is generated, but also the tone color setting operation of the performer causes other tone colors to be generated. Musical sounds can be generated. That is, it is possible to generate a musical tone of a piano tone color with the electronic organ, and to generate a musical tone of an organ tone color with the electronic piano.

However, since the assigning method is fixedly set in each electronic musical instrument at the time of design, it is not possible to select the assigning method suitable for each musical tone corresponding to the tone color of the generated musical tone. There was a problem that it was not musically satisfying.

The present invention has been made in view of the above problems of the prior art, and its object is to correspond to the tone color of a musical tone generated by a musical tone generator,
It is an object of the present invention to provide an assigning device for an electronic musical instrument in which an assigning method suitable for each musical sound can be appropriately selected and a musical effect is improved.

[0014]

In order to achieve the above object, an assigning device for an electronic musical instrument according to the present invention has a plurality of musical tone generating means and a selection for designating one of a plurality of selection modes. When both the mode designating means and the plurality of tone generating means are producing a tone, a sounding instruction is issued from the plurality of tone generating means based on the selection mode designated by the selection mode designating means. There is provided a selecting means for selecting a musical sound generating means to be allocated, and an allocating means for generating a musical sound corresponding to the sounding instruction by allocating the sounding instruction to the musical sound generating means selected by the selecting means.

[0015]

With the selection mode designating means, the selection mode for selecting the tone generation means to which the sounding instruction is assigned is designated from the plurality of selection modes. The selection means is a tone generation means for allocating a sounding instruction from among the plurality of tone generation means when all of the plurality of tone generation means are generating a tone based on the selection mode designated by the selection mode designation means. Select.
The assigning unit assigns a sounding instruction to the musical tone generating unit selected by the selecting unit to generate a musical tone.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An assigning device for an electronic musical instrument 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 an assigning device for an electronic musical instrument according to an embodiment of the present invention.

The electronic musical instrument is constructed so that its entire operation is controlled by using a central processing unit (CPU) 10. This CPU 10 has a 10 mse
It has a built-in timer for issuing a timer interrupt at a time interval of c, and is connected to a keyboard section 12 for the player to perform a key press / release operation via a bus.

Further, the CPU 10 is connected to the CPU 10 via a bus.
A read-only memory (ROM) 14 in which a predetermined program for the whole operation is stored, and a C described later.
A random access memory (RAM) 16 as a working area in which various buffers and registers necessary for execution of a program by the PU 10 are set, a panel 18 including various switch groups described later, and a CPU 1
A tone generation unit 20 that generates / stops a tone signal corresponding to a key depression / key release of the keyboard unit 12 based on the control of 0 is connected.

Further, the tone generating section 20 is connected to a sound emitting section 22 composed of a D / A converter and an amplifier, and the sound emitting section 22 is connected to a speaker 24. In this way, the musical tone signal output from the musical tone generating unit 20 is emitted to the space as a musical tone through the sound emitting unit 22 and the speaker 24.

Further, a damper pedal 26 is connected to the CPU 10 as an operator for imparting a musical sound with an effect similar to that of a damper pedal of an acoustic piano.

The above-mentioned musical tone generating section 20 generates a musical tone signal corresponding to a parameter (note number, volume data, etc.) for controlling the characteristic of the musical tone, and 24 tone generation channels (voices) are set. Has been done.

In the RAM 16, the CPU 10 is in the ROM 14
The buffers and registers required for executing the program stored in are set. Some of the buffers and registers related to the implementation of the present invention are shown below. In the following description, the contents (data, etc.) of each buffer and register are unless otherwise specified.
They shall be represented by the same label name.

(1) Voice buffer The voice buffer is a buffer for always storing, for each voice, the characteristics of the voice in question, and the number of voices (in the present embodiment, in this embodiment). , 24 voices), that is, 24 voices are set, and one voice is assigned to each voice. Voice buffers relevant to the practice of the invention include those described below.

[LEVEL [1] to LEVEL [2]
4]] Volume data of each voice is stored for each voice. It is updated by the envelope generator of the musical sound generating unit 20 by "10 msec timer interrupt processing" described later. The range of possible values is set to “0” to “127”, and all voices are cleared to “0” when the power is turned on and initialization is performed. This LEVE
L is referenced at the time of level assignment.

[HOLD [1] to HOLD [24]]
This is a flag indicating that the voice is in the hold state. The hold state is a state in which the musical tone continues by depressing the damper pedal 26 even after the key is released. That is, in an acoustic piano, if you press the key after pressing the damper pedal, or if you press the damper pedal before releasing the key after releasing the key, the tone remains unmuted even if the key is released. ing. The pedal to simulate these effects is a damper
The pedal 26 is a hold state when the damper pedal 26 is stepped on and is turned on, and the tone remains unmuted even when the key is released.

The possible values are only "0" and "1". When HOLD is "1", it indicates that the hold state is set, and when HOLD is "0", it indicates that the hold state is not set. Then, when the power is turned on, all voices are cleared to "0" and initialization is performed.

[STATE [1] to STATE [2]
4]] Indicate which state the envelope is in for each voice. Possible values are "0" to "4".

The state means that the envelope of each voice is attack, decay, sustain and release (see FIG. 2).
(See (a)), or an empty voice that is not sounding. For each value, 0: Empty voice (voice that is not sounding) 1: Attack (part that rises toward the peak level) 2: Decay (part that falls from the peak level toward the continuous sound level) 3: Sustain (the part of the sustained sound level that holds the value that has fallen from the peak level for a while) 4: Release (the part that decays from the continuous sound level to the mute state).

The envelope generator is STAT
By referring to the value of E, processing unique to each state is performed. For example, when the state is attack, the volume level is gradually increased, and when the state is decay, the volume level is gradually decreased. When the power is turned on, all voices are cleared to "0" (empty voice), and initialization is performed.

[STATE '[1] to STATE'
[24] When the release state is entered, the state of the envelope immediately before that is stored for each voice.
This STATE 'is a damper process (release the key with the damper pedal 26 depressed, then release the damper pedal to attenuate the musical sound, and then depress the damper pedal 26 again when the musical sound is not completely attenuated. At the time of processing for obtaining the effect of sustaining the musical tone at.), It is referred to when the envelope is returned to the stored state. It should be noted that the redamper processing is for simulating a change in musical sound due to operation of a damper pedal in an acoustic piano.

(2) Parameter area The parameter area is an area for storing parameters necessary for the generation of musical tones. Parameter areas relevant to the practice of the invention include those described below.

[Tone Color Parameter Area] Parameters necessary for sound generation are stored as a structure for each tone color, and all parameters set by the performer are stored. In this embodiment, since the timbres 1 to 3 are set as the timbres set by the switches SW1 to SW3 arranged on the panel 18 described later, the timbre 1
A structure is set for each tone color of tone color 3 (FIG. 3).

Buffers relevant to the implementation of the present invention include: (a) AS_MODE (assign mode): level
This buffer stores whether to assign or history assign. When "0", the history assign is selected, and when "1", the level assign is selected. (B) REDAMP (redamper ON / OFF): whether the damper process is performed (ON) or not performed (OF)
F) is a buffer for storing therein, the damper OFF is selected when it is “0”, and the damper ON is selected when it is “1”. (C) A_RATE (attack speed): This is for determining the shape of the envelope, and indicates the attack speed, and takes a value of "1" to "127". (D) D_RATE (decay speed): it is for determining the shape of the envelope, and indicates the decay speed, and takes a value of "1" to "127". (E) S_LEVEL (sustain level): This is for determining the shape of the envelope, and indicates the sustain level, and takes a value of "0" to "127". (F) R_RATE (release speed): This is for determining the shape of the envelope, and indicates the release speed, and takes a value of "1" to "127". There is. Each buffer in the tone color parameter area retains the stored contents by the backup battery when the power is cut off.

[Sound Generation Parameter Area] This is an area for copying the tone color parameter from the tone color parameter area when any one of the tone colors 1 to 3 is selected by the switches SW1 to SW3 described later. Therefore, the structure is the same as one tone color of the tone color parameter.

When the power is turned on, the timbre corresponding to the value of the timbre number / buffer CUR_P described later is automatically copied. Further, the value of the buffer in the sound generation parameter area can be changed by the switch provided on the panel 18. Further, the changed value can be rewritten and stored in the tone color parameter area by the switch SWWR provided on the panel 18.

The buffers related to the implementation of the present invention will be described below. (A) AS_MODE (assign mode): level
This buffer stores whether to assign or history assign. When "0", the history assign is selected, and when "1", the level assign is selected. (B) REDAMP (redamper ON / OFF): whether the damper process is performed (ON) or not performed (OF)
F) is a buffer for storing therein, the damper OFF is selected when it is “0”, and the damper ON is selected when it is “1”. (C) A_RATE (attack speed): This is for determining the shape of the envelope, and indicates the attack speed, and takes a value of "1" to "127". (D) D_RATE (decay speed): it is for determining the shape of the envelope, and indicates the decay speed, and takes a value of "1" to "127". (E) S_LEVEL (sustain level): This is for determining the shape of the envelope, and indicates the sustain level, and takes a value of "0" to "127". (F) R_RATE (release speed): This is for determining the shape of the envelope, and indicates the release speed, and takes a value of "1" to "127". (Fig. 4).

[Tone Color Number Buffer] The tone color buffer CUR_P (FIG. 5) stores the number of the tone color currently selected among the tone colors 1 to 3. Therefore, the possible values are "1" to "3", and the stored contents are held by the backup battery when the power is cut off.

(3) Register Register V is a pointer of the voice buffer and indicates the voice number of the voice currently processed. In this embodiment, since 24 voices are set, the possible values are "1" to "24".

Further, the panel 18 is provided with various switches as described above. These switches will be described below.

[Switch SWWR] Switch SWWR
Is a switch operated to write the stored contents of the tone generation parameter area into the tone color parameter area. If you change the settings of the assign mode,
Operate to save the new settings you have changed.

[Switch SWAS] Switch SWAS
Is a switch operated to change the setting of the assign mode. Each time the key is pressed, the value of AS_MODE in the pronunciation parameter area is changed from "0" to "1" (from history assign to level assign) or from "1" to "0" (from level assign). To switch to history assign).

[Switch SW1, Switch SW2, and Switch SW3] Switches SW1 to SW3
Is a tone color selection switch. When the switch SW1 is pressed, the parameters of the tone color 1 area of the tone color parameter area are copied to the tone generation parameter area.
Similarly, when the switch SW2 is pressed, the parameter of the tone color 2 area of the tone color parameter area, the switch S
Tone 3 in the tone parameter area when W3 is pressed
The parameters in the area are copied to the sound parameter area.

Since the actual sound is produced based on the parameters copied to the sounding parameter area, different tones of different tones are sounded according to the parameters copied to the sounding parameter area.

The operation of the assigning device for an electronic musical instrument according to the present invention will be described with reference to the flowcharts shown in FIGS.

The electronic musical instrument assigning device is configured so that each switch on the panel 18 is operated, and the keyboard 12 is pressed.
When the key release operation or the operation of the damper pedal 26 is detected, an interrupt process corresponding to the detection is executed as described below. Also, an interrupt is issued to the CPU 10 at a time interval of 10 msec, and 10 ms
The ec timer interrupt process is executed.

When the execution of the interrupt process is completed, the process returns to the interrupt waiting state.

When each switch of the panel 18 is pressed, an interrupt is issued from the panel 18 to the CPU 10, and a switch interrupt routine (FIG. 6) for executing a switch interrupt process is executed.

In the switch interruption routine, first, in step S602, it is determined whether the pressed switch is the switch SWAS. If the determination result is affirmative (Y), that is, if the switch SWAS is pressed, the process proceeds to step S604, and AS_MODE in the tone generation parameter area is inverted (if it is "0", it is set to "1". If so, set it to "0".)
Then, the process returns to the interrupt waiting state. Therefore, the history assignment and the level assignment can be arbitrarily selected by operating the switch SWAS.

On the other hand, if the determination result in step S602 is negative (N), that is, if any switch other than the switch SWAS is pressed, the process proceeds to step S606, and it is determined whether the pressed switch is the switch SWWR. Is determined.

If the determination result of step S606 is affirmative, that is, if the switch SWWR is pressed, the process proceeds to step S608, where C indicating the currently selected timbre is displayed.
It is determined whether or not "1" is stored in UR_P.

If the result of the determination in step S608 is affirmative, the flow proceeds to step S610, in which the sound parameter /
The stored contents of the area are copied to the tone color parameter area corresponding to tone color 1, and then the process returns to the interrupt wait state.

On the other hand, if the decision result in the step S608 is negative, the process advances to a step S612 to decide whether or not "2" is stored in the CUR_P indicating the currently selected tone color.

If the result of the determination in step S612 is affirmative, the flow proceeds to step S614, in which the tone generation parameter
The stored contents of the area are copied to the tone color parameter area corresponding to tone color 2, and then the process returns to the interrupt wait state.

On the other hand, if the determination result in step S612 is negative (in this case, "3" is stored in CUR_P indicating the currently selected tone color), the flow proceeds to step S616. , The memory contents of the pronunciation parameter area, the tone color parameter corresponding to the tone color 3
Copy to area and then return to interrupt wait state.

Therefore, by operating the switch SWWR, the stored contents of the tone generation parameter area can be copied to the tone color parameter area corresponding to the currently selected tone color.

If the result of the determination in step S606 is negative, that is, if the switch SWAS or the switch SWWR is pressed (in this case, the switches SW1 to SW3 are pressed). .), The process proceeds to step S618.

In step S618, it is determined whether or not the pressed switch is the switch SW1.

If the determination result of step S618 is affirmative, that is, if the pressed switch is the switch SW1, the process proceeds to step S620, and CUR_P is set to "1".
Is stored and the process proceeds to step S622.

In step S622, the tone color parameter
The parameter of tone color 1 of the area is copied from the tone color parameter area to the tone generation parameter area, and then the process returns to the interrupt waiting state.

On the other hand, if the result of the determination in step S618 is negative, that is, if the switch SW1 has not been pressed, the flow advances to step S624 to determine whether the pressed switch is the switch SW2.

If the determination result in step S624 is affirmative, that is, if the pressed switch is the switch SW2, the flow advances to step S626 to set CUR_P to "2".
Is stored and the process proceeds to step S628.

In step S628, the tone color parameter
The parameter of tone color 2 of the area is copied from the tone color parameter area to the tone generation parameter area, and then the process returns to the interrupt waiting state.

On the other hand, if the result of the determination in step S624 is negative, that is, if the switch SW2 has not been pressed (in this case, the switch SW3 has been pressed), the process proceeds to step S630. CUR_P
"3" is stored in and the process proceeds to step S632.

In step S632, the tone color parameter
The parameters of the tone color 3 of the area are copied from the tone color parameter area to the tone generation parameter area, and then the process returns to the interrupt waiting state.

When a key depression operation is performed on the keyboard unit 12, the keyboard unit 12 interrupts the CPU 10 to execute a key depression interrupt routine (FIG. 8) for performing a key depression interrupt process.

When the key depression interrupt routine is activated, first, in step S802, the voice buffer S
By searching TATE [1] to STATE [24], it is determined whether or not there is an empty voice.

If the result of this determination is affirmative, that is, if there is a vacant voice, the vacant voice may be used to generate a musical tone in response to a key depression, so in step S804 the vacant voice number is set to V. Stored in step S
Proceed to 806.

In step S806, "1" is stored in STATE [V] in order to generate a musical tone, the state of the envelope is set to the attack state, and the step S8 is performed.
Go to 08.

In step S808, the voice V is sounded at the pitch and tone color corresponding to the key depression, and the process returns to the interrupt waiting state.

On the other hand, if the determination result in step S802 is negative, that is, if there is no empty voice, step S802 is performed.
In step 810, it is determined whether S_LEVEL is “0”.

If the result of the determination in step S810 is affirmative, that is, if the sustain level is "0" (in this case, there is no continuous sound level portion, and a decay sound type envelope is obtained (FIG. 2 (a) ( b)).) to step S8
Proceed to 12.

In step S812, the LEVEL [1] to LEVE of the voice buffer are added according to a known technique.
Search L [24] to find the most LE among the voices that are sounding.
The number of the voice with a small VEL is stored in V. That is, level assignment will be performed.

When the processing of step S812 is completed, the flow proceeds to step S814, and the voice V is muted to prepare for sounding corresponding to the key depression.

When the process of step S814 is completed, the process proceeds to steps S806 and S808 described above,
"1" is stored in STATE [V], the voice V is sounded at the pitch and tone color corresponding to the key depression, and the process returns to the interrupt waiting state.

On the other hand, when the result of the determination in step S810 is negative, that is, when the sustain level is not "0" (in this case, there is a continuous sound level portion, and a continuous sound type envelope is obtained (FIG. 2 (a)). (B)).), The process proceeds to step S816.

In step S816, it is determined whether REDAMP is "1". If the result of this judgment is affirmative, that is, if the damper is ON, it is judged that the timbre is a piano timbre and has a kind similar to a decaying tone type envelope, and the process proceeds to step S812, where the level assignment is made. I do. Thereafter, similarly to the above, step S812 → step S814 → step S806
→ Proceeds to step S808, performs sound generation processing corresponding to key depression, and returns to the interrupt waiting state.

On the other hand, when the result of the determination in step S816 is negative, that is, when the damper is OFF, the process proceeds to step S818, and it is determined whether or not AS_MODE set by the performer is set to "1". If this determination result is affirmative, that is, if the assign mode is set to level assign, the process proceeds to step S812.
Thereafter, similarly to the above, step S812 → step S8
14-> step S806-> step S808,
The tone generation process corresponding to the key depression is performed, and the process returns to the interrupt waiting state.

If the determination result of step S818 is negative, that is, if the assign mode is set to history assign, the process proceeds to step S820.

In step S820, the oldest voice (the first voiced voice) is selected from the voices being sounded on the basis of a known technique, and the number of the voice is set to V.
To memorize. That is, history assignment is performed.

When the processing of step S820 is completed, the flow proceeds to step S814, and the voice V is muted to prepare for sounding corresponding to the key depression.

When the process of step S814 is completed, the process proceeds to steps S806 and S808 described above,
"1" is stored in STATE [V], the voice V is sounded at the pitch and tone color corresponding to the key depression, and the process returns to the interrupt waiting state.

In this key depression interrupt routine, when the sustain level is "0" (step S8)
When the determination result of 10 is affirmative), the level assignment (the process of step S812 and thereafter) is performed, but when the value is equal to or less than a predetermined value other than “0”, the level assignment may be performed. Moreover, the player may arbitrarily set the predetermined value.

Further, in this key-depression interrupt routine, S_LEVEL (step S810) → REDA
Although the condition determination is performed in the order of NP (step S816) → AS_MODE (step S818), the order of this condition determination may be changed. Also, S_LEVEL
(Step S810), REDAMP (Step S81
It is not necessary to judge the condition 6). In this case, level assignment or history assignment is determined only based on the player's AS_MODE setting.

In this key-depression interrupt routine, the sustain level is "0" regardless of the assign mode setting contents (step S818) by the performer.
Or, when the damper was "ON", the level assignment was always done. Therefore, even if the performer sets AS_MODE to "0" and selects history assignment, level assignment is always performed when the sustain level is "0" or the damper is "ON". In this way, if the setting contents of the assign mode executed in the key press interruption process differ from the assign mode set by the performer, a warning display or a warning sound may be generated. Good.

Furthermore, in this key-depression interrupt routine, processing for determining the AS_MODE condition (step S
818) may be omitted, and the assign mode may be set completely automatically regardless of the performer's assign mode setting.

Further, when the stored contents of the tone generation parameter area are written back to the tone color parameter area by the switch SWWR and stored therein, the player performs AS_MO.
Instead of setting DE arbitrarily, S_LEVEL,
When the REDAMP is automatically set and written back according to the setting state, and when a musical tone is to be sounded by the key depression interrupt process, only the AS_MODE thus written back is referred to and the musical sound is pronounced. May be.

Next, a case where the key release operation of the keyboard section 12 is performed will be described. Also in this case, similarly to the case of the key depression operation, the keyboard section 12 interrupts the CPU 10, and the key release interrupt routine (FIG. 9) for performing the key release interrupt process is executed.

When the key release interrupt routine is started, first, in step S902, the number of the voice that is generating the musical tone of the note number that matches the note number corresponding to the key that has been released is searched. , The number of the voice is stored in V.

When the processing of step S902 is completed, the routine proceeds to step S904, where it is determined whether or not the damper pedal 26 is depressed. If this determination result is affirmative, that is, if the damper pedal 26 is depressed, the process proceeds to step S906.

In step S906, the HOLD flag of the voice buffer of the voice V is set to "1" to indicate that the damper pedal 26 is stepped on and is in the hold state, and then the process returns to the interrupt waiting state.

On the other hand, if the result of the determination in step S904 is negative, that is, if the damper pedal 26 has not been depressed, the release state is entered, and thus step S90 is entered.
Proceed to 8 and change the current STATE [V] to STATE '
Substitute for [V] to prepare for the case where the damper process is performed.

When the process of step S908 is completed, the process proceeds to step S910, "4" indicating release is stored in STATE [V], and the process returns to the interrupt waiting state.

Next, the envelope of the musical tone is processed 10
The msec timer interrupt process will be described. This one
0msec timer interrupt processing is performed by CPU 10m
10msec timer interrupt routine that starts each time a timer interrupt is issued at a time interval of sec (Fig. 10)
Executed by.

Since this 10 msec timer interrupt routine processes all voices 1 to 24, in step S1002,
“1” is stored in V to prepare for processing from voice 1, and the process proceeds to step S1004.

In step S1004, STATE
It is determined whether the value of [V] is “0” to “4”. That is, it is determined in which state the envelope of the current voice V is.

The determination result of step S1004 is "ST
If ATE [V] = 0 ", the voice V is an empty voice that is not sounded, and no envelope processing is required. Therefore, in this case, step S1006
Go to step S10 and increment V by 1
In step 08, it is determined whether V is larger than "24".

If the result of the determination in step S1008 is affirmative, that is, if V is larger than "24", it means that all voices 1 to 24 have been processed. To do.

On the other hand, if the result of the determination in step S1008 is negative, that is, if V is "24" or less, the processing has not been performed on all voices, and the remaining processing has not been performed. In order to process this voice, the process returns to step S1004 and the process is repeated.

If the result of determination in step S1004 is "STATE [V] = 1", the state of the envelope of voice V is in the attack state,
It is necessary to process the envelope. Therefore, in this case, the process proceeds to step S1010.

In step S1010, LEVEL
A new LEVE is obtained by adding A_RATE to [V].
Set as L [V]. That is, LEVEL is A_RA
It will be increased by TE.

When the processing of step S1010 is completed,
In step S1012, LEVEL [V] is set to "12.
It is determined whether it is 7 ”or more.

This judgment result is negative, that is, LEVEL.
When [V] has not reached “127”, LEV
Since the maximum value of EL [V] is not exceeded, the attack state continues. In this case, step S1014
Then, the sound volume of the voice V is controlled based on LEVEL [V]. When the process of step S1014 ends, the process proceeds to step S1006 and step S1008, and the above process is performed.

On the other hand, if the result of the determination in step S1012 is affirmative, that is, if LEVEL [V] is "127" or more, the process proceeds to step S1016 to store the maximum value "127" in LEVEL [V], and step S1018. Go to.

In step S1018, LEVEL
[V] is set to the maximum value "127", and the attack state does not continue any more. Therefore, STATE [V]
Is changed to "2" to indicate that the state of voice V is decay.

When the processing of step S1018 is completed,
In step S1014, the volume of the voice V is controlled based on LEVEL [V]. When the process of step S1014 ends, steps S1006 and S10.
08, the above-mentioned processing is performed.

Next, the determination result of step S1004 is
If "STATE [V] = 2", then voice V
The envelope state of is in the decay state, and it is necessary to process the envelope. Therefore, in this case, the process proceeds to step S1020.

In step S1020, LEVEL
A new LE is obtained by subtracting D_RATE from [V].
Set as VEL [V]. That is, LEVEL is D_
It will be reduced by RATE.

When the processing of step S1020 is completed,
In step S1022, LEVEL [V] is S_L.
It is determined whether it is equal to or less than EVEL.

This determination result is negative, that is, LEVEL.
If [V] has not reached S_LEVEL, the decay state will continue. In this case, the process proceeds to step S1014, and the volume of the voice V is controlled based on LEVEL [V]. When the process of step S1014 ends, the process proceeds to step S1006 and step S1008, and the above process is performed.

On the other hand, if the result of the determination in step S1022 is affirmative, that is, if LEVEL [V] is less than or equal to S_LEVEL, the process proceeds to step S1024, LEVEL [V].
Substitute the value of S_LEVEL for and go to step S1026.

In step S1026, LEVEL
Since [V] is set to S_LEVEL, STA
TE [V] is changed to “3” to indicate that the state of voice V is sustain.

When the processing of step S1026 is completed,
In step S1014, the volume of the voice V is controlled based on LEVEL [V]. When the process of step S1014 ends, steps S1006 and S10.
08, the above-mentioned processing is performed.

If the result of determination in step S1004 is "STATE [V] = 3", the state of the envelope of voice V is in the sustain state. That is, since the envelope is in the continuous sound level state, it is not necessary to process the envelope, so that the process proceeds to step S1006 and step S1008, and the above process is performed.

Further, the determination result of step S1004 is
If "STATE [V] = 4", then voice V
The state of the envelope of is in the released state, and it is necessary to process the envelope. Therefore, in this case, the process proceeds to step S1028.

In step S1028, LEVEL
A new LE is obtained by subtracting R_RATE from [V].
Set as VEL [V]. That is, LEVEL is R_
It will be reduced by RATE.

When the processing of step S1028 is completed,
In step S1030, LEVEL [V] is “0”.
It is determined whether or not

This determination result is negative, that is, LEVEL
If [V] has not reached “0”, LEVEL
Since the minimum value of [V] is not exceeded, the release state continues. In this case, the process proceeds to step S1014, and the volume of the voice V is controlled based on LEVEL [V]. When the process of step S1014 ends, the process proceeds to step S1006 and step S1008, and the above process is performed.

On the other hand, if the determination result of step S1030 is affirmative, that is, if LEVEL [V] is "0" or less,
The process advances to step S1032, the minimum value “0” is stored in LEVEL [V], and the process advances to step S1034.

In step S1034, LEVEL
[V] is set to the minimum value "0", and it is considered as an empty voice that the release state does not continue any more. Therefore, STATE [V] is changed to "0", and step S1 is executed.
At 036, the voice V is made an empty voice.

When the processing of step S1036 is completed,
In step S1014, LEVEL [V] (= 0)
The volume of the voice V is controlled based on Step S10
When the process of 14 is completed, the process proceeds to step S1006 and step S1008, and the above process is performed.

Next, the processing based on the operation of the damper pedal 26 will be described. First, damper pedal 2
When the damper pedal 26 is stepped on, the damper pedal 26 interrupts the CPU 10 to execute the damper pedal on routine (FIG. 11). .

When the damper pedal on routine is started, first, in step S1102, RED
It is determined whether ANP is set to "1". If the result of this determination is negative, that is, if REDAMP is "0" (redamper OFF), the damper process is not performed, and the process returns to the interrupt waiting state without performing any process.

On the other hand, if the result of the determination in step S1102 is affirmative, that is, if REDAMP is "1" (redamper is ON), the damper process is executed, and therefore step S1104.
Go to.

When performing the damper process, all the voices 1 to 24 are processed. Therefore, in step S1104, "1" is stored in V to prepare for performing the processes from voice 1 onward. Then, the process proceeds to step S1106.

In step S1106, STATE
It is determined whether or not [V] is "4". That is, it is determined whether or not the current envelope of the voice V is in the released state.

If the determination result in step S1106 is negative, that is, if the envelope of the current voice V is not in the released state, the damper process is not performed. Therefore, the process proceeds to step S1108 without performing any process, and V is incremented by "1". Then, the process proceeds to step S1110, and V is “24”.
Determine if it is greater than.

If the result of the determination in step S1110 is affirmative, that is, if V is larger than "24", it means that all the voices 1 to 24 have been processed. To do.

On the other hand, if the result of the determination in step S1110 is negative, that is, if V is "24" or less, all voices have not yet been processed, and the remaining processing has not been performed. In order to perform the process for the voice of, the process returns to step S1106 and the process is repeated.

If the result of the determination in step S1106 is affirmative, that is, if the current envelope of the voice V is in the released state, the damper process is performed.
Determine if it is greater than. If the result of this determination is negative, that is, if LEVEL [V] is less than or equal to S_LEVEL, it is sufficient to continue sounding at this LEVEL [V], so in step S1114, STATE.
Change [V] to "3".

When the processing of step S1114 is completed,
The process proceeds to step S1116, "1" is stored in HOLD [V], and the above-described steps S1108 and S1 are performed.
The process proceeds to 110 and processing is performed.

On the other hand, if the result of the determination in step S1112 is affirmative, that is, if LEVEL [V] is larger than S_LEVEL, it is desired to attenuate the sound until the sustain state and then continue the sound generation. For example, attack and decay) ST
ATE '[V] is set as the state of the envelope and ST
Store in ATE [V]. That is, in step S908 of the key release interrupt routine, STATE [V] was stored in STATE '[V] before entering the release state, but STATE' [V] thus stored is stored in S.
It will be returned to TATE [V]. Therefore, the envelope is returned to STATE '[V], and the processing is started.

When the processing of step S1118 is completed,
The process proceeds to step S1116, "1" is stored in HOLD [V], and the above-described steps S1108 and S1 are performed.
The process proceeds to 110 and processing is performed.

Next, the processing when the damper pedal 26 is released will be described. When the damper pedal 26 is released, the damper pedal 26 interrupts the CPU 10 to turn off the damper pedal. The routine (FIG. 12) is executed.

Since the damper pedal off routine processes all voices 1 to 24, in step S1202, "1" is stored in V to prepare for processing from voice 1 on. Then
It proceeds to step S1204.

In step S1204, HOLD [V]
To determine whether "1" is set. If this determination result is negative, that is, if HOLD [V] is "0" and the voice V is not held, even if the damper pedal 26 is released, there is no effect, and the subsequent processing is performed. Without proceeding to step S1206 and setting V to "1"
Increment.

When the processing of step S1206 is completed,
In step S1208, it is determined whether V is larger than "24", and the result of this determination is affirmative, that is, V is "2".
If it is larger than 4 ”, it means that all the voices 1 to 24 have been processed, and the process returns to the interrupt waiting state.

On the other hand, when the result of the determination in step S1208 is negative, that is, when V is "24" or less, all voices have not yet been processed, and the remaining processing has not been performed. In order to process this voice, the process returns to step S1204 and the process is repeated.

If the result of the determination in step S1204 is affirmative, that is, if HOLD [V] is "1" and the voice V is held, release proceeds when the damper pedal 26 is released. Then, the current STATE [V] is saved to STATE '[V] to prepare for the case where the damper process is performed.

When the processing of step S1210 is completed,
In step S1212, "4" indicating release is stored in STATE [V], the current envelope is brought to the release state, and the flow advances to step S1214.

In step S1214, since the damper pedal 26 is released, HOLD [V] is set to "0" to release the hold, and step S1
The process proceeds to 206 and step S1208, and the above-described processing is performed.

In the above, the embodiment in which one tone color musical tone is composed of one voice has been described, but the present invention is not limited to this, and a case where one tone color musical tone is composed of a plurality of voices is also applicable. The present invention can be applied by performing the processing described below. In the following description, each of the plurality of voices forming one tone color tone is referred to as a partial.

(1) All the plurality of partials are assigned by the assign mode set in AS_MODE by the performer.

(2) When the assign mode can be set for each partial, the following processing is performed.

(A) Set priorities among partials,
Assign all partials in the highest priority partial assign mode. At this time, the priority order may be set in advance or may be arbitrarily set by the performer.

(B) The reference tone color parameter may be set arbitrarily, and may be assigned according to the partial assign mode in which the reference tone color parameter is the largest or the smallest.
For example, the partial mode that is heard most often assigns all partials. That is,
By the partial assign mode with the largest setting level, all partials are assigned, or when controlling the tone with a filter etc., the partial assign mode with the highest cutoff frequency of the filter Assign all partials.

(C) Assigning priorities among different assign modes, and assigning selected partials
All partials are assigned according to the assign mode, which has the highest priority among the modes.

(D) The partials are given priority, and the voices being sounded in the assign mode of the partial are searched in order from the partial having the lowest priority, and the voices are muted by the assign mode. Therefore, there are cases where the assignment modes differ between partials. That is, there are cases where a plurality of partials forming a musical tone of one tone color are assigned by level assigning to one partial and history assigning to another partial. The priority order may be set in advance or may be arbitrarily set by the performer. Further, the priority order may be determined according to the priority order of the assign mode.

Further, although the above embodiment has been described with respect to the case where there is only one tone color that is sounded at the same time, the present invention is not limited to this, and for example, in a multi-timbre sound source that can simultaneously generate a plurality of tone colors, Of course, the present invention may be applied. For example, JP-A 64-1939
As shown in Japanese Patent Publication No. 3, when the timbre is determined for each part, the priority of each part is set in advance, and in order to generate a new musical sound, the parts are selected in order of low priority. There are things that can be silenced. In such a case, the present invention may be applied to the selected part and assigned. As for the assign mode, the assignment is performed according to the assign mode of the selected part.

Furthermore, in the above embodiment,
The level assignment and the history assignment have been described as the assigning method, but other assigning methods may be used.

[0151]

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

When all of the plurality of tone generating means, the selection mode designating means for designating any one of the plurality of selection modes, and the plurality of tone generating means are generating the tone, Based on the selection mode designated by the selection mode designating means, a selecting means for selecting a musical sound generating means to which a sounding instruction is assigned from the plurality of musical sound generating means, and the musical sound generating means selected by the selecting means for producing the sound. Since there is provided an assigning means for generating a musical tone corresponding to the pronunciation instruction by assigning the instruction, the selection mode when selecting the musical tone generating means to which the pronunciation instruction is assigned is selected from the plurality of musical tone generating means. It is designated by the mode designation means from a plurality of selection modes.

The selecting means, based on the selection mode designated by the selection mode designating means, issues a sounding instruction from the plurality of tone generation means when all of the plurality of tone generation means are producing a tone. Select the tone generation means to be assigned. Further, the assigning means assigns the sounding instruction to the musical sound generating means selected by the selecting means, and a musical sound is generated.

Therefore, according to the present invention, it becomes possible to appropriately select an assigning method suitable for each musical tone in accordance with the tone color of the musical tone generated by the musical tone generating means, and to remarkably improve the musical effect. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing an electronic musical instrument provided with an assigning device for an electronic musical instrument according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing the shape of an envelope,
(A) shows a continuous sound type envelope, (b) shows a damping sound type envelope.

FIG. 3 is an explanatory diagram schematically showing a tone color parameter area.

FIG. 4 is an explanatory diagram showing a pronunciation parameter area graphically.

FIG. 5 is an explanatory diagram schematically showing a tone color number buffer.

FIG. 6 is a flowchart of a switch interrupt routine.

FIG. 7 is a flowchart of a switch interrupt routine.

FIG. 8 is a flowchart of a key depression interrupt routine.

FIG. 9 is a flowchart of a key release interrupt routine.

FIG. 10 is a flowchart of a 10 msec timer interrupt routine.

FIG. 11 is a flowchart of a damper pedal on routine.

FIG. 12 is a flowchart of a damper pedal off routine.

[Explanation of symbols]

 10 CPU 12 keyboard section 14 ROM 16 RAM 18 panel 20 tone generation section 22 sound emission section 24 speaker 26 damper pedal

Claims (1)

[Claims] 1. A plurality of musical tone generating means, a selection mode designating means for designating any one of a plurality of selection modes, and a plurality of musical tone generating means during musical tone generation. A selection unit that selects a tone generation unit that assigns a pronunciation instruction from the plurality of tone generation units based on the selection mode designated by the selection mode designation unit; and a tone generation unit that is selected by the selection unit. An assigning device for an electronic musical instrument, comprising: assigning means for generating a musical tone corresponding to the pronunciation instruction by assigning the pronunciation instruction.