JPH0823749B2 - Electronic musical instrument - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument of a type that drives a plurality of sound sources for each key pressed on a keyboard to simultaneously generate a plurality of musical tones. .

[Summary of the Invention] In the present invention, in the electronic musical instrument of the type described above, it is possible to enjoy a variety of ensemble performances with a simple operation by automatically setting a plurality of scales in conjunction with the selection of tone colors of a plurality of sound sources. It was done.

[Prior Art] Conventionally, as the electronic musical instrument of the above-mentioned type, there is known an electronic musical instrument that generates musical tones according to the equal tempered scale for any sound source.

[Problems to be Solved by the Invention] In general, when performing ensemble performance using a plurality of types of natural musical instruments, it is rare that the pitch curves of all types of musical instruments are exactly the same, and for example, equal temperament and pure tone are different. Often follows a scale. Therefore, each key has a different frequency shift, and a comfortable beat effect can be obtained.

On the other hand, in the above-described conventional electronic musical instrument, even if a plurality of sound sources are set to different tones and sounded at the same time, a performance effect similar to an ensemble performance of a natural musical instrument cannot be obtained.

In order to obtain such a playing effect, it is possible to set a desired scale for at least one sound source. However, in this case, in addition to the operation of setting the tone color for each scale, the operation of setting the scale for at least one of the sound sources is necessary, which inevitably complicates the operation.

An object of the present invention is to provide a novel electronic musical instrument that allows users to enjoy a variety of ensemble performances with simple operations.

[Means for Solving Problems] The present invention relates to an electronic musical instrument in which a plurality of sound sources are driven for each key pressed on a keyboard to simultaneously generate a plurality of musical tone signals corresponding to the keys. A plurality of storage units respectively corresponding to a plurality of voices (ensemble tones), each storage unit having scale designation information, tone color designation information for the plurality of sound sources, and scale designation availability information for the plurality of sound sources. To remember and [VC in Figure 4
MEM (1) to (10)], a voice selection means [VS in FIG. 2] for selecting any one of the plurality of voices, and a voice selection means of the plurality of storage sections. Tone setting means for reading tone color designation information from the storage unit corresponding to the selected voice and setting the tone color of the tone signal of the plurality of sound sources according to the tone color designation information [routine in FIG. 8]
And read the scale designation information and the scale designation availability information from the storage unit corresponding to the voice selected by the voice selection means among the plurality of storage units, and a predetermined sound source is specified as the scale designation availability information. The tone pitch setting means for setting the tone pitch of the tone signal according to the scale of No. 1 and the tone pitch setting means for setting the tone pitch of the tone signal according to the tone specified by the tone specifying information related to reading for a sound source whose tone specifying possibility information is allowed to specify the tone. 8 and the routine of FIG. 13] are provided.

[Operation] According to the configuration of the present invention, when the desired voice is selected by the voice selecting means, the tone color setting means causes the tone color setting means to generate musical tones of a plurality of sound sources according to the tone color designation information read from the storage section corresponding to the selected voice. Set the tone of the signal. Further, the pitch setting means reads out the scale designation information and the scale designation availability information from the storage unit corresponding to the selected voice, and regarding the sound source whose scale designation availability information does not allow the scale designation, a predetermined scale (for example, equal temperament). The tone pitch of the musical tone signal is set according to the scale), and the tone pitch of the musical tone signal is set according to the scale specified by the scale specifying information related to the reading (for example, a pure articulation scale) for the sound source whose scale specifying availability information specifies the scale. To do.

Therefore, the scales of the plurality of sound sources are automatically set in association with the tone color selection of the plurality of sound sources (selection of the ensemble tone color). In this case, since it is possible to instruct whether or not the scale can be designated for each sound source by the scale designation information, various scale settings are possible. For example, if there are two sound sources, both sound sources can be set to a predetermined scale by not specifying the scale, or the sound sources of FIGS. 1 and 2 can be set to be not and can be set to a predetermined scale and a specified scale, respectively. , The first and second sound sources can be designated sound sources and predetermined sound sources with and without scale designation respectively, and the designated scales can be set with both sound sources designated as scales.

[Embodiment] FIG. 1 shows a circuit configuration of an electronic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, a pitch curve, tone color setting, musical tone generation, etc. are controlled by a microcomputer. It has become.

Circuit configuration (Fig. 1) Bus 10 has keyboard 12, panel operation unit 14, central processing unit (CPU) 16, program memory 18, data working memory 20, data memory 22, tone generator (TG).
24 and 26, an external storage unit 30 and the like are connected.

The keyboard 12 has, for example, 61 keys, and key operation information is detected for each key.

The panel operation unit 14 is a micro tuning operation unit MO.
P, a tone color parameter edit operator group TOP and other operators are included, and operation information is detected for each operator. Micro tuning operation unit MO
P is used to set the pitch curve and tone color,
Details will be described later with reference to FIG.

The CPU 16 executes various processes for pitch curve setting, tone color setting, tone generation, etc. according to a program stored in a program memory 18 including a ROM (Read Only Memory). Figures 13 to 13 will be described later.

The data working memory 22 is composed of a RAM (Random Access Memory), and includes a large number of storage blocks used as registers, flags, etc. in various processes by the CPU 16. Registers related to the implementation of the present invention will be described later with reference to FIG.

The data memory 22 is composed of a ROM, in which frequency control data for all keys and tone color parameter data for 64 tones are stored for each scale such as equal temperament and pure tone. The arrangement of storage blocks in the memory 22 will be described later with reference to FIG.

Each of the TGs 24 and 26 has a plurality of sound generation channels (sound sources), and the tone signal generated from each sound generation channel is supplied to the sound system 28 and converted into sound. The plurality of sound channels in each tone generator may be of a time division configuration or a space division configuration. As an example, if eight tone generation channels are provided for each tone generator, if two tones are generated at the same time for each key, a maximum of eight keys of musical tone (total of 16 tones) will be generated.
Sound) can be pronounced simultaneously.

The external storage unit 30 is composed of a RAM, a floppy disk, or the like, and is used to initially set or store various musical tone control data.

Micro tuning operation part MOP (Fig. 2) Fig. 2 shows the arrangement of operators and indicators in the micro tuning operation part MOP. The operation part MOP includes a mode selection switch group MSS, a voice selection switch group VS, A memory selection switch group MS, a display DP, an increment switch IS, a decrement switch DS, a cursor movement switch CSR, CSL and the like are provided.

The mode selection switch group MSS includes a voice mode selection switch VOICE, a micro tuning mode selection switch MC, a micro tuning edit mode selection switch MCED, and a store mode selection switch STORE.

The voice selection switch group VS includes ten voice selection switches V1 to V10 corresponding to the voice numbers 1 to 10, respectively. When the voice mode is selected by turning on the switch VOICE, any voice number can be selected by turning on any of the switches V1 to V10.
When a desired voice number is selected, a set of voice-related data is read from the voice register corresponding to the selected voice number in the memory 20, and a tone is generated or the read data is read based on the read data. It can be partially modified.

Further, when the switch STORE is turned on to select the store mode, any voice number can be selected by turning on any one of the switches V1 to V10. When the desired voice number is selected, a set of voice related data is written in the voice register in memory 20 corresponding to the selected voice number. The set of voice-related data written in this case is used for generating a tone after being read out as described above, or is appropriately corrected.

One set of voice-related data stored for each voice register is tone color data for the TG24, micro tuning on / off data for the TG24, tone color data for the TG26, and timbre number data for the TG26. It consists of micro tuning on / off data and scale number data.

The tone color number data represents a tone color number corresponding to a specific instrument tone color such as flute and violin.
In this embodiment, the timbre number is any of 1-64.

The scale number data represents the scale number corresponding to a specific scale. In this embodiment, the scale number is any of 1-12. The scale numbers 1 to 4 correspond to the four types of scales in which the frequency control data are factory-set. For example, 1 is a pure articulation scale, 2
Is an equal temperament scale, 3 is a Pythagoras scale, and 4 is a mean tone scale. The scale numbers 5 to 12 respectively correspond to eight types of scales that can be set by the user.

The micro-tuning on / off data indicates a micro-tuning on when 1 and a micro-tuning off when 0. Here, "micro tuning on" means to use the scale specified by the scale number data in the associated tone generator. "Micro-tuning off" means using the equal-tempered scale in the associated tone generator.

The memory selection switch group MS includes eight memory selection switches M5 to M12 corresponding to the scale numbers 5 to 12, respectively. When the switch STORE is turned on to select the store mode, any of the scale numbers 5 to 12 can be selected by turning on any of the switches M5 to M12. When the desired scale number is selected, the memory 20
The frequency control data for all keys is written in the scale register corresponding to the selected scale number in the above. The frequency control data for all keys written in this case is actually used for generating a musical tone, or is appropriately corrected.

The display device DP is composed of, for example, a liquid crystal display device, on which the set amount and the like are displayed in association with the mode selection. A display example related to mode selection will be described later with reference to FIG.

The increment switch IS is used for increasing the displayed numerical value and commanding the micro tuning on. Further, the decrement switch DS is used for decreasing the displayed numerical value and commanding micro tuning off.

The cursor movement switches CSR and CSL are used to move the cursor on the display surface. The CSR is for right movement and the CSL is for left movement.

Display Example (FIG. 3) FIGS. 3A to 3E show display examples of the display DP in various modes.

FIG. 3 (A) shows a display example when an arbitrary voice selection switch V (n) is turned on after the switch VOICE is turned on to select the voice mode. In this case, the display unit DP displays the voice number n or the voice name corresponding to the voice number n, and "A" and "B" are displayed on the right side thereof.
Is displayed, a tone color number for determining the tone color of TG24 is displayed below "A", and a tone color number for determining the tone color of TG26 is displayed below "B". The tone color number at this time is specified by the tone color number data for each tone generator contained in the group of voice-related data read from the voice register at the time of voice selection as described above.

For the tone number displayed below either "A" or "B", place the cursor CS on it and switch IS.
Or it can be changed arbitrarily by turning on the DS. In this embodiment, any of the tone color numbers 1 to 64 can be selected.

FIG. 3B shows a display example when the switch MC is turned on to select the micro tuning mode. Normally, after selecting a desired voice as described in FIG. 3 (A), the micro tuning mode is selected. In this case, the scale number is displayed on the display device DP and the scale name corresponding to the scale number is displayed.
The scale number at this time is designated by the scale number data included in the group of voice-related data read from the voice register at the time of voice selection as described above.

The letters “A” and “B” are displayed on the right side of the scale name display, and “ON” or “OFF” that indicates the micro tuning on or off for the TG24 is displayed below the “A”. Similarly, "ON" or "OFF" is displayed below the "B" for the TG26. Micro-tuning on / off at this time is also designated by the micro-tuning on / off data for each tone generator included in the group of voice-related data read from the voice register at the time of voice selection as described above. It is what is done.

The displayed scale number and scale name can be arbitrarily changed by placing the cursor CS on them and turning on the switch IS or DS.

Furthermore, "ON" or "OFF" displayed below either the letter "A" or "B" can be arbitrarily changed by pointing the cursor CS to this and turning on the switch IS or DS. is there. That is, in this embodiment, the following four types of micro tuning on / off can be set.

(1) Micro tuning on for both TG24 and 26 ("A" = "ON", "B" = "ON") In this case, both TG24 and TG26 correspond to the selected scale number. Scale (for example, pure articulation scale)
The musical sound can be generated according to.

(2) For TG24, micro tuning is on and
Micro tuning off for TG26 (“A” =
In this case, the TG24 can generate musical tones according to the scale corresponding to the selected musical scale number, and the TG26 can generate musical tones according to the average temperament.

(3) For TG24, micro tuning is off and
For the TG26, Micro Tuning On (“A” =
"OFF", "B" = "ON") In this case, contrary to the case of (2) above, the TG24 is in the equal temperament scale, and the TG26 is in the scale corresponding to the selected scale number.

(4) Micro tuning off for both TG24 and 26 (“A” = “OFF”, “B” = “OFF”) In this case, both TG24 and TG26 are in the equal tempered scale.

Therefore, a variety of performances can be performed by arbitrarily selecting the setting modes (1) to (4).

FIG. 3C shows a display example when the pitch correction operation is performed after the switch MCED is turned on to select the microtuning edit mode. The pitch correction operation is performed on the scale corresponding to the scale number after the desired scale number is displayed as described in FIG. 3 (B). Switch before pitch correction
When only MCED is turned on, the characters "micro tuning edit mode", "COARCE" and "FINE" are displayed on the display DP, and 0 is displayed as the numerical value.
Then, when the key whose pitch is to be changed is turned on, the pitch of that key is displayed as "F ₃ ".

After this, move the cursor CS to "COARCE" and switch IS
Alternatively, by turning on the DS, the pitch of the key can be changed in semitone steps (one by one as a key code value).
The changed pitch is displayed on the DP as "G ₃ ".

Move the cursor CS to "FINE" to switch IS or
By turning on the DS, the pitch of the key can be changed in units of cents, and the cent value is displayed on the display DP with a plus or minus sign as shown.

In this way, if the pitch can be changed finely with "COARCE" and "FINE", the pitch can be set accurately and quickly.

When the pitch is changed with either "COARCE" or "FINE", the absolute value of the cent based on the lowest note of the keyboard is displayed in the bracket on the right side of the cent value display on the display DP. To be done.

FIG. 3D shows a display example when the memory STORE is turned on to select the store mode and then the arbitrary memory selection switch M (m) is turned on. In this case, the characters "micro tuning", the arrow pointing to the right, and the character "memory (m) store" are displayed side by side on the display device DP from left to right. This is because the frequency control data (for example, the pitch-corrected as described in FIG. 3 (C)) for all keys is written in the scale register corresponding to the scale number m in the memory 20. Is shown.

FIG. 3 (E) shows an optional voice selection switch V (n) after turning on the switch STORE to select the store mode.
6 shows a display example when is turned on. in this case,
On the display DP, the letters "Voice", the arrow pointing to the right,
The characters “memory (n) store” are displayed side by side from left to right. This is because a group of voice-related data (for example, the contents whose contents have been modified as described in FIGS. 3A and 3B) are written in the voice register corresponding to the scale number n in the memory 20. It indicates that.

Arrangement of Registers in Memory 20 (FIG. 4) FIG. 4 shows the registers in the data working memory 20 which are relevant to the implementation of the present invention. The contents stored in each register are as follows.

(1) Key code register KCODE This is the one in which the key code corresponding to the key having a key event (key on or key off) is set.

(2) Voice mode flag VCFLG This is set to 1 when the switch VOICE is turned on.

(3) Voice number register VCNO This is for setting the voice number selected by any of the switches V1 to V10 in the voice mode.

(4) First and second tone color number registers TCNO1 and TCN
O2 Of these registers, TCNO1 stores the tone color data for TG24, and TCNO2 stores TG26.
The tone color number data for is stored.

(5) First and second micro tuning on / off registers MCON1 and MCON2 Among these registers, MCON1 is for storing micro tuning on / off data for TG24, and MCON2 is for TG26. Micro tuning on / off data is stored.

(7) Scale number register MCNO This is a scale number set in the voice mode or the micro tuning mode.

(8) Micro tuning edit mode flag MC
EDFLG This is set to 1 when the switch MCED is turned on.

(9) Micro tuning key register MCEDKY This is a key code that corresponds to the key that has been turned on in the micro tuning edit mode.

(10) First edit register MCCOS This is the one to set the key code corresponding to the key pressed in the micro tuning edit mode. The set key code can be changed one by one based on the operation of the switch IS or DS when “COARCE” is selected.

(11) Second edit register MCFINE This is a pitch change amount set based on the operation of the switch IS or DS when "FINE" is selected in the micro tuning edit mode.

(12) Micro tuning mode flag MCFLG This is set to 1 when the switch MC is turned on.

(13) First and second tone color parameter buffer registers
TCPB1 and TCPB2 Of these registers, TCPB1 stores the tone color parameter data to be supplied to the TG24.
2 stores the tone color parameter data to be supplied to the TG26.

(14) Scale buffer register MCBUF This stores the frequency control data for all keys for the scale corresponding to the scale number set in the register MCNO.

(15) Scale registers MCMEM (5) to MCMEM (12) These registers correspond to eight types of scales that can be set by the user, and each register can store frequency control data for all keys. . The frequency control data read from the external storage unit 30 when the power is turned on may be initially set in these registers.

(16) Voice registers VCMEM (1) to VCMEM (10) These registers are voice numbers 1 to 10 (switches).
V1 to V10), and a group of voice-related data as described above can be stored in each register. Voice-related data read from the external storage unit 30 when the power is turned on may be initially set in these registers.

As registers other than the above, there are registers for sound allocation, registers for timbre parameter editing, etc., but not shown.

Storage Block Arrangement in Memory 22 (FIG. 5) FIG. 5 shows a large number of storage blocks in the data memory 22 which are relevant to the implementation of the present invention. The storage contents of each storage block are as follows.

(1) Equal temperament storage block FNMEM This is a block in which frequency control data for all keys is stored according to the equal temperament scale. The data in this storage block is used when generating a tone from the tone generator set to the micro tuning off. It should be noted that this memory block stores frequency control data for 12 note names instead of for all keys, and reads the frequency control data of the note name corresponding to each key and converts it to the one corresponding to the key pitch. You may do it.

(2) Scale memory block MCMEM (1) to MCMEM (4) Among these memory blocks, MCMEM (1) is a pure articulatory scale, MCMEM (2) is an equal temperament scale, and MCMEM (3) is a Pythagoras scale. , MCMEM (4) correspond to mean tone scales, respectively, and store frequency control data for all keys according to the scale corresponding to each memory block. What is stored in the above-mentioned register MCBUF is
Of the memory blocks MCMEM (1) to MCMEM (4) and the above-mentioned registers MCMEM (5) to MCMEM (12), all keys read from the one corresponding to the scale number of the register MCNO. It is frequency control data.

(3) Tone parameter storage block TCP This stores tone parameter data for 64 tones. The tone color parameter data corresponding to the tone color number is read from this storage block.

Main Routine (FIG. 6) In the main routine of FIG.
A key scan process is performed, and if there is a key-on event, a key-on subroutine as described later with reference to FIG. 13 is executed, and if there is a key-off event, a key-off subroutine (not shown) is executed.

Next, in step 42, a micro tuning operator scanning process is performed. In this case, if there is an ON event of the switch VOICE, the subroutine of FIG. 7 is executed, and if there is an ON event of any voice selection switch V (n), the subroutine of FIG. 8 is executed, and the ON event of the switch MC is If so, the subroutine of FIG. 9 is executed, if there is an on event of the switch MCED, the subroutine of FIG. 10 is executed, and if there is an on event of the switch IS, the subroutine of FIG. 11 is executed, and the on event of the switch DS. If there is, a DS ON subroutine (not shown) is executed, and if there is an ON event of any memory selection switch M (m),
12 Execute the subroutine shown in the figure.

Next, in step 44, a tone color parameter editing operator scanning process is performed. In this case, for example, TG24 or
When operating the controls related to 26, TCPB1
Alternatively, a tone color parameter edit process such as changing the contents of TCPB2 is performed.

After that, in step 46, the scan processing of other operators is performed, and if there is an operated operator, the necessary processing is performed according to the operation. Then return to step 40,
The above series of processing is repeated.

VOICE ON Subroutine (FIG. 7) In the VOICE ON subroutine of FIG. 7, in step 50, VCFLG is set to 1 and other flags are set to 0. Then, the process proceeds to step 52.

In step 52, the display DP is displayed as "voice mode". After that, the process returns to the routine of FIG.

V (n) ON Subroutine (FIG. 8) In the V (n) ON subroutine of FIG. 8, in step 60, it is determined whether VCFLG is 1. If the result of this judgment is affirmative (Y), the routine proceeds to step 62, where the voice number n corresponding to the switch turned on in VCNO is set. Then, the process proceeds to step 64.

At step 64, VCMEM corresponding to the voice number n
From (n), a group of voice-related data is read out, the tone color data of the TG24 is TCNO1, and the tone color data of the TG26 is T.
Micro tuning on / off data of TG24 is put in MCON1, micro tuning on / off data of TG26 is put in MCON2, and scale number data is put in MCON. Then, the process proceeds to step 66.

In step 66, the voice name and the tone color number of each tone generator are displayed on the display DP based on the data of VCNO, TCNO1 and TCNO2 as shown in FIG. Then, the process proceeds to step 68.

In step 68, the tone color parameter data corresponding to the tone color number of TCNO1 is read from TCP, and the TG24 is transmitted via TCPB1.
Send to. Similarly, the tone color parameter data corresponding to the tone color number of TCNO2 is read out from TCP and sent to TG26 via TCPB2. As a result, the timbre is set for TGs 24 and 26. After this, the process proceeds to step 70.

In step 70, MCMEM corresponding to the scale number of MCON
Read the frequency control data for all keys from (register or storage block) and write to MCBUF. Then, the process returns to the routine of FIG.

If the determination result of step 60 is negative (N), the process proceeds to step 72, and it is determined whether STORE is on. If it is not on (N), the routine returns to the routine shown in FIG.

If the determination result of step 72 is affirmative (Y), the process proceeds to step 74. In this step 74, TCNO1, TCNO2, MC
The contents of ON1, MCON2, and MCON are written to the corresponding storage areas in VCMEM (n). Then, the process proceeds to step 76.

In step 76, the display DP is caused to display as shown in FIG. After that, the process returns to the routine of FIG.

MC ON subroutine (Fig. 9) In the MC ON subroutine of Fig. 9, step 80
Then, MCFLG is set to 1 and other flags are set to 0.
Then, the process proceeds to step 82.

In step 82, based on MCON, MCON1 and MCON2, the display DP is caused to display the scale number, scale name and micro tuning on / off for each tone generator as shown in FIG. 3 (B). After that, the process returns to the routine of FIG.

MCED ON subroutine (Fig. 10) Steps in the MCED ON subroutine in Fig. 10
At 90, MCEDFLG is set to 1 and other flags are set to 0. Then, the process proceeds to step 92.

In step 92, the display DP is caused to display as shown in FIG. However, the pitch is not displayed, and the numerical value is displayed as 0. After that, the process returns to the routine of FIG.

IS ON subroutine (Fig. 11) In the IS ON subroutine of Fig. 11, step 10
At 0, it is determined which flag is 1.

If VCFLG is 1, the process proceeds to step 102. In this step 102, it is determined whether the cursor CS is in the position "A" or "B" in the display state as shown in FIG. If the result of this determination is "A", the routine moves to step 104.

At step 104, the value of TCNO1 is incremented by 1. Then, the process proceeds to step 106, where the tone color parameter data corresponding to the tone color number of TCNO1 is read out from TCP, and via TCPB1.
Send to TG24. As a result, the TG24 tone is
It has been changed to a new tone corresponding to the tone number set in 4. After this, the process proceeds to step 108.

In step 108, a new tone color number is displayed below "A" as shown in FIG. 3 (A) based on TCNO1. Then, the process returns to the routine of FIG.

If the result of determination in step 102 is “B”,
Move to step 110. In this step 110, TCNO2, TCP
For B2 and TG26, perform the same processing as steps 104, 106, and 108. As a result, the timbre of TG26 is changed to a new timbre, and a new timbre number is displayed below "B" as shown in FIG. 3 (A).

If MCFLG is 1 as a result of the determination in step 100, the process proceeds to step 112. In this step 112, it is determined whether the cursor CS is in the "scale name", "A" or "B" in the display state as shown in FIG. 3 (B). If the result of this determination is "scale name", step
Move to 114.

At step 114, the value of MCON is incremented by 1. Then, the process proceeds to step 116, where M corresponding to the scale number of MCNO
The frequency control data for all keys is read from CMEM (register or storage block) and placed in MCBUF. After this, the process proceeds to step 118.

In step 118, a new scale number and scale name are displayed based on the MCNO as shown in FIG. 3 (B). And
It returns to the routine of FIG.

If the result of determination in step 112 is “A”,
Move to step 120, and set 1 to MCON1. And
Move to step 122.

In step 122, "ON" is displayed below "A" based on MCON1 as shown in FIG. 3 (B). After this, the sixth
Return to the routine shown.

If the result of determination in step 112 is “B”,
Go to step 124. In this step 124, MCON2 is processed in the same manner as steps 120 and 122. As a result, "ON" is displayed below "B" in FIG. 3 (B). After that, the process returns to the routine of FIG.

If MCEDFLG is 1 as a result of the determination in step 100, the process proceeds to step 126. In this step 126, the cursor CS indicates "COARC" in the display state as shown in FIG. 3 (C).
It is determined whether the position is “E” or “FINE”. If the result of this determination is "COARCE", step 12
Move to 8 and increase the value of MCCOS by 1. This 1-up is
Corresponds to a semitone pitch rise.

Next, in step 130, displays a new pitch to position "G _3" of FIG. 3 (C) based on MCCOS. For example, if “F ₃ ” is displayed before the IS is turned on and the process goes to step 130 because the IS is turned on, “F ^# ₃ ” is displayed. After this, the process proceeds to step 132.

In step 132, new frequency control data corresponding to the contents of MCCOS and MCFINE is calculated, and the value is calculated as M in MCBUF.
Write to the storage area corresponding to CEDKY. As a result, MCEDKY
A new pitch is set for the key corresponding to the key code of. After this, the process proceeds to step 134.

In step 134, the absolute value of the cent corresponding to the value calculated in step 132 is obtained and displayed in parentheses as shown in FIG. 3 (C). Then, the process returns to the routine of FIG.

If the result of determination in step 126 is "FINE", the process moves to step 136 and the value of MCFINE is incremented by 1.
This 1-up corresponds to a pitch increase of 1 cent.

Next, at step 140, the new cent value is displayed together with the sign (+) as shown in FIG. 3 (C) based on MCFINE.

After this, steps 132 and 134 are sequentially executed as described above, and then the process returns to the routine of FIG. As a result, the pitch of the key corresponding to the MCEDKY key code is
The IS on operation when “FINE” is selected is included in the calculation, and the absolute value display of the cent also reflects the IS on operation.

If the result of determination in step 100 is that the other flags are 1, other processing is executed in step 142 and then the routine returns to the routine of FIG.

Although not shown in FIG. 11, TCNO1, TCNO2, MC
NO, MCCOS, MCFINE, etc. should reach the maximum value defined for each (eg 64 for TCNO1, TCNO2), and then return to the minimum value defined for each (eg 1 for TCNO1, TCNO2). Has become.

Further, the subroutine for turning on the switch DS is the same as the routine shown in FIG. 11, except that TCNO1, TCNO2, MCNO, MCCOS, MCFINE
This is omitted because it can be easily realized by simply changing the values of 1 by 1 and setting 0 for MCON1 and MCON2.

M (m) ON Subroutine (FIG. 12) In the M (m) ON subroutine of FIG. 12, in step 150, it is determined whether STORE is ON. If the determination result is negative (N), the process returns to the routine of FIG.

When the determination result of step 150 is affirmative (Y), the process proceeds to step 152, and the contents of MCBUF (frequency control data for all keys) are stored in MCMEM (register) corresponding to the scale number m. Then, the process proceeds to step 154.

In step 154, the display DP is caused to display as shown in FIG. Then, the process returns to the routine of FIG.

Key-on subroutine (Fig. 13) Steps in the key-on subroutine in Fig. 13
On the 160, the key code corresponding to the key with key on is K
Set to CODE. Then, the process proceeds to step 162.

In step 162, it is determined whether MCEDFLG is 1, and if this determination result is affirmative (Y), the process proceeds to step 164.

In step 164, the key code of KCODE is MCED
Put in KY and MCCOS. Then, the process proceeds to step 166.

In step 166, display each pitches to position "F _3" and "G _3" in FIG. 3 based on MCEDKY and MCCOS (C). The two pitches displayed in this case correspond to the pressed key and are equal to each other. After that, the process returns to the routine of FIG.

After the pitch to be changed is displayed in this way,
As described above with reference to FIG. 11, it is possible to select "COARCE" or "FINE" and operate the switch IS or DS to set any pitch.

When the result of the determination in step 162 is negative (N), the process proceeds to step 168, and normal tone generation assignment processing is performed. This process searches for an empty channel for TGs 24 and 26 and assigns the pressed key to the empty channel of TG24 and the empty channel of TG26 as one pair. After this, the process proceeds to step 170.

In step 170, it is determined whether MCON1 is 1, and if this determination result is affirmative (Y), the process proceeds to step 172.

In step 172, frequency control data corresponding to KCODE is read from MCBUF and sent to the assigned channel of TG24 together with a key-on (KON) signal. Then, the process proceeds to step 174.

At step 174, it is determined whether MCON2 is 1, and if the result of this determination is affirmative (Y), the routine proceeds to step 176.

In step 176, the TG 26 is processed in the same manner as in step 172, and thereafter the process returns to the routine of FIG. As a result, the musical tone signals having the same pitch are transmitted from the TGs 24 and 26 almost at the same time and supplied to the sound system 28. Therefore, the sound system 28 produces two musical tones at the same time. In this case, the two tones that are played simultaneously are
Since it is based on the MCBUF data, it can follow any scale of the user set.

The judgment result of step 170 was negative (N) (MCN
If O1 = 0), the process moves to step 178.

In step 178, the frequency control data corresponding to KCODE is read from FNMEM and sent to the assigned channel of TG24 together with the KON signal. Then, the process proceeds to step 174, where MCON2 =
Determine if 1. If the determination result is affirmative (Y), the process of step 176 is executed as described above. In this case, the two tones that are played simultaneously are FNMEM for the TG24.
Since it is based on the data of
Since 26 is based on MCBUF data, it can follow any scale of the user set.

The determination result of step 174 was negative (Y) (MCO
N2 = 0), the process proceeds to step 180, and the TG 26 is processed in the same manner as step 178. In this case, if step 172 is followed by step 180, the two tones that are played simultaneously may be in accordance with any scale of the user set because they are based on MCBUF data for TG24, and for FNMEM for TG26. Since it is based on data, it follows the equal temperament scale. If step 180 is followed by step 180, two sounds will be produced simultaneously.
Since the two tones are based on the FNMEM data for both TG24 and 26, they follow the equal tempered scale.

Although the key-off subroutine is not shown,
For the TGs 24 and 26, the assigned channel of the key which is keyed off may be searched, and then the key-off signal may be sent to each assigned channel to stop the sound generation.

Modifications The present invention is not limited to the above-described embodiments, but can be implemented in various modifications. For example,
The following changes are possible.

(1) Although an arbitrarily set pitch curve is commonly used for two series of sound sources, an arbitrary pitch curve may be set independently for each series.

(2) The scale number is stored for each voice, but the frequency control data for all keys may be stored directly. Although the tone color number is stored for each voice, the tone color parameter data may be directly stored.

(3) Special scales such as pure tone are each tone (C tone, C ^#, etc.)
Although frequency control data is required for each key, it is easy to prepare such data so that the pitch curve can be set for each key.

(4) The tone color parameter storage block TCP has a ROM configuration, but it may be a RAM or a writable external memory so that the user can freely set tone color parameters.

(5) In the micro tuning edit mode, the pitch change amount need not be specified and displayed in cents.

(6) Although the increment / decrement switch is used as the input operator, a rotary knob, a numeric keypad, or the like may be used.

(7) Although the pitch curve setting and the like are controlled by software, a dedicated hardware configuration may be used.

[Effects of the Invention] As described above, according to the present invention, since the scales of a plurality of sound sources are automatically set in association with the selection of the ensemble tone color (voice), the operation is simplified. is there.

Further, since it is possible to instruct whether or not the scale can be designated for each sound source, various scales can be set, and in combination with the selection of the ensemble tone color, various ensemble performances can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a layout diagram showing a layout of operators / displays in a micro tuning operating unit MOP, and FIG. 3 (A). ~ (E) is an indicator in various modes
FIG. 4 is a diagram showing a DP display example, FIG. 4 is a layout diagram showing a register layout in the data working memory 20, FIG. 5 is a layout diagram showing a storage block layout in the data memory 22, and FIG. FIG. 7 is a flowchart showing a main routine, FIG. 7 is a flowchart showing a subroutine for turning on a voice mode selection switch VOICE, FIG. 8 is a flowchart showing a subroutine for turning on an arbitrary voice selection switch V (n), and FIG. Tuning mode selection switch MC
FIG. 10 is a flow chart showing a subroutine for turning on the micro tuning edit mode selection switch MCED, FIG. 11 is a flow chart showing a subroutine for turning on the increment switch IS, and FIG. 12 is an arbitrary memory selection. FIG. 13 is a flowchart showing a subroutine for turning on the switch M (m), and FIG. 13 is a flowchart showing a subroutine for turning on the key. 10 ... bus, 12 ... keyboard, 14 ... panel operating unit, 16 ... central processing unit, 18 ... program memory, 20 ... data working memory, 22 ... data memory, 24,26 ... tone generator, 28 ... sound system, 30 … External storage unit, MO
P ... Micro tuning operation unit, MSS ... Mode selection switch group, VS ... Voice selection switch group, MS ... Memory selection switch group, DP ... Display unit, IS ... Incremental switch, DS ... Decrement switch, CSR, CSL ... Cursor movement switch.

Claims (1)

[Claims] 1. An electronic musical instrument for driving a plurality of sound sources for each key pressed on a keyboard to simultaneously generate a plurality of musical tone signals corresponding to the keys, each of which corresponds to a plurality of voices. A plurality of storage units, each storage unit storing scale designation information, tone color designation information for the plurality of sound sources, and scale designation availability information for the plurality of sound sources; A voice selection unit for selecting any one of the plurality of storage units, and reading tone color designation information from a storage unit corresponding to the voice selected by the voice selection unit among the plurality of storage units,
Tone color setting means for setting the tone color of the tone signals of the plurality of sound sources according to the tone color designation information, and scale designation information from the storage portion corresponding to the voice selected by the voice selection means among the plurality of storage portions, Reads the scale specification availability information, sets the pitch of the musical tone signal according to a predetermined scale for the sound source whose scale specification availability information does not allow the scale specification, and reads it for the sound source whose scale specification availability information allows the scale specification. An electronic musical instrument comprising: pitch setting means for setting the pitch of a musical tone signal according to the scale specified by the scale specifying information.