JPH0738110B2 - Music signal generator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone signal generator used in an electronic musical instrument and other musical tone generating equipment, and more particularly to musical tone sound in a plurality of sequences in which musical tone elements such as tone colors are different from each other. The present invention relates to a musical tone signal generating device that generates a signal.

[Conventional technology]

In Japanese Examined Patent Publication No. 59-43758, the generation of a musical tone corresponding to one pressed key is assigned to different channels for each of a plurality of selected timbres, whereby a plurality of tones corresponding to the same pressed key are assigned. It has been shown that musical tone signals are generated with different tones on different channels. For example, if timbres 1 and 2 are selected and keys C4 and D4 are pressed, channel 1 is assigned key C4 and timbre 1,
Key C4 and tone 2 are assigned to channel 2, key D4 and tone 1 are assigned to channel 3, and key D4 and tone 2 are assigned to channel 4. In this way, the generation of musical tones is assigned to a plurality of channels corresponding to all combinations of the selected number of tone colors and the number of pressed keys.

[Problems to be solved by the invention]

In the conventional device as described above, when a plurality of timbres are selected, the multi-sounds are automatically generated by the number of timbres, and all the key depression sounds are uniformly the multi-series sounds. Will end up. For this reason, only some key-depressing sounds are multi-sequence sounds, other key-depressing sounds are one sequence, or some key-depressing sounds and other key-depressing sounds have different sequence numbers. Control was not easily possible with conventional devices.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a musical tone signal generating apparatus capable of easily performing the complicated multi-sequence control as described above, which cannot be performed by the conventional apparatus.

[Means for solving problems]

The musical tone signal generating device according to the present invention comprises a plurality of musical tone forming channels each forming a musical tone signal having a pitch corresponding to the assigned pitch information, and each channel is formed of one or more arbitrary channels. Group setting means for performing a setting for classifying into a plurality of groups, and pitch information corresponding to one musical sound designated to be generated, for each group set by the group setting means. Assigning means for enabling the generation of tone signals corresponding to the pitch information for each group by performing the assigning process for the respective channels, and for each tone forming channel therefor. A tone element control signal for controlling the tone elements of the tone signal to be formed is supplied, and at least each group set by the group setting means is supplied. Is between-loop is obtained comprising a tone element control means for supplying different the tone element control signal.

The functional block diagram of the present invention is shown in FIG. 1, where 1 is a plurality of tone forming channels CH1 to CHn.
Is a tone forming means, 2 is a group setting means, 3 is an assigning means, and 4 is a tone element control means.

[Action]

By the group setting means 2, the tone forming channel CH1
~ CHn is set to be classified into a plurality of groups, each group consisting of one or a plurality of channels. Allocation means 3
Then, for each group set by the group setting means 2, pitch information of a musical tone to be generated is assigned to each channel in the group. Music formation channel
In CH1 to CHn, tone signals having pitches corresponding to the pitch information assigned to each are formed. The tone element of the tone formed in each tone forming channel is controlled by the tone element control signal supplied from the tone element control means 4. The tone element control means 4 supplies the tone element control signals which are different from each other at least among the groups set by the group setting means 2. Here, the musical tone element means an element that determines the characteristics of the musical tone, such as tone color, pitch, and volume envelope. Therefore, among the groups set by the group setting means 2, any one or more of the musical tone elements such as the timbre, pitch, and volume envelope of the musical tones formed by the channels belonging to each group are at least different from the other groups. To be different.

The pitch information of the musical tone to be generated is assigned to each group in each group, and in each group, any one of the musical tone elements such as the tone color, pitch, and volume envelope of the musical tone formed by the channels belonging to each group. By making one or a plurality different from at least the other groups, a plurality of tones with different tone colors or characteristics are simultaneously generated in the tone signal based on the same pitch information, and a multi-sequence effect is produced.

The group setting by the group setting means 2 may be performed at will. For example, when the number of channels is 8, channels CH1, CH2, CH3 are the first group, channels CH4, CH5 are the second group, and channel CH
If 6, CH7 and CH8 are set as the third group, the same three sounds will be assigned to the first and third groups respectively, but only two of the three sounds will be assigned to the second group. Not assigned. Therefore, although the tone signals corresponding to two keys of the three pressed keys are generated in three sequences, the tone signals corresponding to the remaining one key are generated in only two sequences. Not limited to this example, multi-series control of various modes is possible depending on how the group setting means 2 sets a group.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows a hardware configuration of an embodiment of the tone signal generator 10 according to the present invention. In the tone signal generator 10 of this embodiment, a CPU (central processing unit) 11, a program ROM (read only memory) are provided. ) 12 and various microcomputers including data and working RAM (random access memory) 13 control various operations and processes. The tone signal generator 10 of this embodiment is composed of a modularized sound source module, to which an arbitrary keyboard device 14 and an automatic performance device 15, which are also respectively modularized, are appropriately connected. By further connecting the sound system 16, the electronic musical instrument can be configured as a whole.

The modularized keyboard device 14 includes a keyboard having a plurality of keys and a circuit for detecting a key press / release of a key on the keyboard, and a key-on event (new key press) or a key-off event (new key release). Each time there is a key), a key code of a key related to a new key depression or key release and a key-on event signal or a key-off event signal are output. The modularized automatic performance device 15 outputs key data such as a key code indicating the pitch of the automatic performance sound at the timing at which the automatic performance sound should be generated. The data output from the keyboard device 14 and the automatic performance device 15 which are modularized are expressed by the MIDI standard, which is a common standard for musical tone signal processing, via the data bus 17 in the musical tone signal generator 10. It is loaded into the microcomputer described above.

The musical tone signal generator 10 includes a musical tone forming circuit 18 including a plurality of musical tone forming channels (in this example, eight channels of CH1 to CH8), and a key code indicating the pitch of the musical tone to be generated. The key data consisting of
14 or from the automatic performance device 15, the tone generation corresponding to the received key code is assigned to the channels in the tone forming circuit 18 according to a predetermined assignment standard, and the tone signal is generated on each tone forming channel CH1 to CH8 according to this assignment. To occur. The generated tone signal is provided to the sound system 16.

In each of the tone forming channels CH1 to CH8, a tone signal having a tone pitch corresponding to the assigned key code (that is, tone pitch information) can be formed, and the tone element (tone color, pitch) of the tone signal formed there. , Volume, etc.) can be appropriately variably controlled according to the musical tone element control signal. The tone element control signal is a generic term for various parameters for tone formation or tone element control, such as tone color setting parameters, pitch change setting parameters, volume envelope waveform setting parameters, and other control envelope waveform setting parameters. Let's call this "tone parameter". Therefore, the "tone parameter" described below does not refer to only the tone color setting parameter in a narrow sense, but generically refers to the various parameters for tone formation or tone element control as described above.

The data ROM 19 stores in advance various data used for forming musical tones and various data used for processing, and particularly stores the above-mentioned "tone parameters" relating to 64 kinds of tone colors. 1 to 64 types of tones
64 tone color numbers are assigned, and 64 sets of tone parameters TPME corresponding to each tone color stored in the data ROM 19
M (1) to TPMEM (64) are read according to the tone color number given to the address input.

The operation panel unit 20 includes switches and operators for setting / selecting various data and operation modes, and a display 21.

The tone color setting mode switch TCSET is a switch for selecting a tone color setting mode. The tone color setting mode performs processing such as setting tone parameters individually for each channel, processing for setting allocation order for arbitrary multiple channels, and processing for setting each channel into multiple groups. Mode.

The group switch GRP is operated to specify a channel to be grouped when setting each channel into a plurality of groups.

The alternative assign switch ALT is operated to specify the channels to be assigned in order when the assignment order is set for a plurality of arbitrary channels. In this embodiment, regarding a plurality of channels that are designated to be assigned in order, the adjacent order of channels is the assignment order as it is. The assignment processing in such an order is hereinafter referred to as alternative assignment.

The display 21 displays a tone color number of the tone parameter set for each channel, a display showing the setting state of the alternative assignment, and a display showing the group setting state of the channel. Some examples of display contents on the display 21 are as shown in FIGS. 3 (a) to 3 (f). The channel numbers from CH1 to CH8 are displayed in the upper row, and the tone number (1-64) of the tone parameter set for each channel is displayed below each channel number, and alternative assignment is applied. A predetermined alternative assignment display “+” is displayed between the tone color numbers of the channels, and a predetermined grouping display “←” is displayed instead of the tone color number display for the channels to which the same tone number is assigned by the group setting process. Is displayed. The alternative assignment display "+" is set based on the operation of the above-mentioned alternative assass switch ALT. The grouping display “←” is set based on the operation of the group switch GRP described above. In addition, this grouping display "←"
Is a display indicating that the tone color number of the channel for which this grouping display “←” is displayed is the same as the tone color number of the channel on the left of the display 21.

A cursor CSR is displayed on the display 21. The cursor CSR is displayed at a position corresponding to each channel according to the operation of the cursor key CSRK on the operation panel unit 20 and an intermediate position between the channels (these cursors The position moves to (shown by the dotted line in FIG. 3 (a)).

The preset mode switch PSR is a switch for selecting a preset mode. In the preset mode, the tone number set for each channel displayed on the display 21 and the data of the alternative assignment display and the grouping display are written in the storage circuit as one set of preset data (preset tone parameter), or This is a mode for reading from the memory circuit. Preset Light Switch PSW Display 21
It is a switch that is operated when writing the one set of data displayed in 1 to the memory circuit as preset data.

Tone setting mode switch TCSET and preset mode switch PSR are equipped with LEDs (light emitting diodes) respectively. When one switch TCSET (or PSR) is turned on, the corresponding LED lights up and the other LED goes off. The light is turned on and off exclusively. Tone setting mode switch TCSE
When the LED corresponding to T is lit, it is the tone color setting mode, and when the LED corresponding to the preset mode switch PSR is lit, it is the preset mode.

The ten-key pad 22 comprises ten numeric input keys from 0 to 9, and is operated when inputting numeric data such as a tone color number.

The operation panel unit 20 is further provided with an operator group (for example, an operator for setting the overall volume) of a tone parameter editing operator group 23 and various other musical tone setting / control switches. The tone parameter editing operator group 23 is for correcting and changing individual elements (for example, pitch change setting amount and various envelope parameter setting amounts) in the tone parameter.

Of the processing executed by the microcomputer in the musical tone signal generator 10, an example of a flowchart of processing related to the present invention is shown in FIGS. Data and working RAM1 used in connection with this process
An example of the stored contents in 3 is shown in FIG.

TSFLG is a tone color setting mode flag, which is set to "1" when the tone color setting mode switch TCSET is turned on.
It is reset to “0” when the preset mode switch PSR is turned on.

PSFLG is a preset mode flag, which is set to "1" when the preset mode switch PSR is turned on and reset to "0" when the tone color setting mode switch TCSET is turned on.

CHNO is the cursor channel number and cursor CS
Indicates the channel number corresponding to the current position of R.

TENKY is numeric keypad input data and indicates numerical data input by the numeric keypad 22.

NKC is a new key code, and is a key code indicating a newly pressed key (pitch of a new musical tone to be generated) given from the keyboard device 14 or the automatic performance device 15.
The key code of the newly released key is also treated as a new key code.

TCN (1) to TCN (8) are tone color numbers set for each channel. The numbers in parentheses indicate channel numbers. For example, TCN (1) is a tone color number set for channel 1, and is specifically a value from 1 to 64.

GRP (1) to GRP (8) are group setting data indicating the group setting state of each channel. The numbers in parentheses indicate channel numbers. For example, GRP (1) is channel 1 group setting data, and specifically, "1"
(When grouping is set by the group switch GRP) or "0" (when grouping is not set).

ALT (1) to ALT (8) are alternative assignment setting data indicating the alternative assignment setting state of each channel. The numbers in parentheses indicate channel numbers. For example, ALT (1) is the alternative assign setting data for channel 1, and specifically, "1" (when set as the alternative assign channel by the alternative assign switch ALT).
Or “0” (when not set as an alternative assign channel).

TPBUF (1) to TPBUF (8) are tone parameter buffers, which are the tone color numbers set for each channel.
The tone parameters corresponding to TCN (1) to TCN (8) are specifically stored. The numbers in parentheses indicate channel numbers. For example, TPBUF (1) indicates a specific tone parameter corresponding to the tone number TCN (1) set in channel 1, and specifically, data RO
One of the tone parameters TPMEM (1) to TPMEM (64) in M19 is read out, or it is appropriately modified or changed by the tone parameter editing operator group 23.

PMEM (0) to PMEM (9) are preset memories.
The numbers in parentheses are preset numbers and are designed to store 10 sets of preset data.

The "assignment table" stores various data necessary for the pronunciation assignment process and the pronunciation assignment process for each group in an order by alternative assignment.
These data are group number data GN, alternative sign flags ALFLG (1) to ALFLG (8), in-group channel number data GCH (1) to GCH (8), alternative assign channel number data ALGN (1) to AL
GN (8), alternative assignment allocation channel number data ACH (1,1) to ACH (8,8).

The group number data GN indicates the number of groups set by the group setting process.

Alternative assignment flags ALFLG (1) to ALFLG
(8) is a flag indicating whether or not alternative assignment is performed for each set group. The numbers in parentheses are group numbers. For example, ALFLG (1) is an alternative assign flag of group 1, and the content thereof is specifically "1" when alternative assign is performed in this group and "0" when it is not performed.

Group channel number data GCH (1) to GCH (8)
Indicates the channel number belonging to each group. The numbers in parentheses are group numbers. For example,
GCH (1) is the group 1 channel number data of group 1, and if the channels belonging to this group are CH1, CH2, and CH3, the contents are specifically "1", "2", It consists of three channel numbers "3". Channels belonging to this group are CH
If there are only 4, the contents specifically consist of one channel number "4".

Number of alternative assign channels ALGN
(1) to ALGN (8) indicate the number of channels to be sequentially allocated in the group to which alternative assignment is performed. The numbers in parentheses are group numbers. For example, ALGN (1) is the data of the number of alternative assign channels of group 1, and if this group is the group that performs alternative assignment, it is assumed that the four channels of channels CH3, CH4, CH5, and CH6 are in order. If an assignment should be made, its content is specifically "4". In this case, CH3 → CH4
Assuming that the assignment should be made in order from either CH5 → CH6, the content of the data of the number of alternative assign channels becomes “3”.

Channel number data ACH (1,1) to ACH (8,8) according to alternative assignment allocation order indicate the number of the channel corresponding to each allocation order in the group to which alternative assignment is performed. The first number in parentheses is the group number, and the numbers after the parentheses indicate the order of allocation. For example, ACH (1,1) is the channel number data of allocation order 1 in group 1, and if this is channel CH3
, The content is specifically “3”.
Also, if there are multiple channels such as CH4 and CH5 in the same allocation order, their respective channel numbers are "4" and "5".
Indicates. Here, the allocation order means that, for example, in the alternative assignment, when three channels CH3, CH4, and CH5 are allocated in order, CH3 is rank 1, CH4 is rank 2, and CH5 is rank 3. is there.

CGN is the current group number and indicates the number of the group currently performing the pronunciation assignment process.

CALGN (1) to CALGN (8) are alternative assign current orders for each group, and indicate the order in which the assignment process is currently performed in the sequential assignment process by alternative assignment. The numbers in parentheses are group numbers. For example, CALGN (1) is an alternative assign current order of group 1, and if the channel is currently assigned to a channel having an assignment order of 3, the content is “3”.

An area for storing the above-mentioned data or signal is provided in the data and working RAM 13.
Further, in the data and working RAM 13, for storing key data of a musical tone assigned to a musical tone forming channel of the musical tone forming circuit 18 (a key code, a key-on signal, etc., which is obtained on the basis of the tone assignment process). Area or
Operation detection data of switches and the like on the operation panel unit 20
Areas for storing on / off data of LEDs and other working areas are provided.

An external storage device 24 (FIG. 2) including an external RAM and a floppy disk unit may be additionally provided in order to enrich the storage of tone parameters and preset data.

The main routine will be described with reference to FIG. 5. First, in the key event processing, the key-on event processing or the key-off event processing is performed according to the key data given from the keyboard device 14 or the automatic performance device 15. That is, when a key code of a tone to be newly generated is given together with a key-on event signal, a key-on event process is performed and this key code is assigned to a tone forming channel. Further, the key code of the released key is given together with the key-off event signal. Key off event processing is performed to set the channel to which this key code is assigned to the key release state. A flowchart showing an example of the key-on event process is shown in FIG.

Channel control operators In the scanning process, the channel control operators on the operation panel 20 (that is, tone setting mode switch TCSET, group switch GRP, alternative assign switch ALT, preset mode switch PSR, preset light switch PSW, numeric keypad 22, cursor keys The on / off state of (CSRK) is detected and scanned, and the switch-on event processing is performed based on this detection scanning. Examples of various switch-on event processes performed here are shown in FIGS. 6 to 10.

In the tone parameter edit operator group scanning process, the operation state of the tone parameter edit operator group 23 of the operation panel unit 20 is detected and scanned, and based on this detection scan, the tone parameter buffer TP corresponding to each channel is detected.
Performs processing to change / correct the contents of BUF (1) to TPBUF (8).

When the tone color setting mode switch TCSET is turned on, the TCSET on event processing of FIG. 6 is performed. Here, the tone color setting mode flag TSFLG is set to "1" and the preset mode flag PSFLG is reset to "0". Then, the LED corresponding to the tone setting mode switch TCSET is turned on and the LED corresponding to the preset mode switch PSR is turned off to enter the tone setting mode.

When the preset mode switch PSR is turned on, the PSR on event processing of FIG. 7 is performed. Here, the preset mode flag PSFLG is set to "1" and the tone color setting mode flag TSFLG is reset to "0". Then, the LED corresponding to the preset mode switch PSR is turned on and the LED corresponding to the tone setting mode switch TCSET is turned off to enter the preset mode.

When any key switch of the ten key 22 is turned on, the ten key on event process of FIG. 8 is performed. First, in step 25, the numerical data of the turned-on numeric keypad is fetched as numeric keypad input data TENKY. Next Step 26
Then, it is checked whether the tone color setting mode flag TSFLG is "1".

Explaining the case where step 26 is YES, that is, the case of the tone color setting mode, in step 27, it is checked whether or not the cursor CSR on the display 21 is at the tone color number setting position (that is, the position corresponding to each channel). If YES, it means that the ten key operation this time was performed for setting the tone color number, and the process proceeds to step 28. In step 28, the channel number corresponding to the current cursor CSR position is fetched as the cursor channel number CHNO. In the next step 29, the tone number display corresponding to the position of the cursor CSR on the display 21 is displayed on the ten key input data TENKY.
Replace with the value of. In the next step 30, the tone color number of the channel indicated by the cursor channel number CHNO (this is one of TCN (1) to TCN (8), which is indicated by TCN (CHNO)) is assigned to this channel. Correspondingly, rewrite to the tone number currently displayed on the display 21. In the next step 31, as described above, the tone number TCN (C
Tone parameters corresponding to HNO) tone parameters TPMEM (1) to TPMEM stored in advance in the data ROM 19
(64) is taken out (the extracted tone parameter is indicated by TPMEM {TCN (CHNO)}), and this is stored in the tone parameter buffer (TPBUF (1) to TPBUF (8) of the channel designated by the cursor channel number CHNO. One of them, which is indicated by TPBUF (CHNO), is stored in TPBUF (CHNO), and the tone forming channel in the tone forming circuit 18 (this is abbreviated as TG in the flowchart) indicated by the cursor channel number CHNO (this is called TG). CH (CHNO) this
(Shown with)). The tone forming channel CH (CHNO) that has received the transmitted tone parameters stores the tone parameters as appropriate and controls various tone elements according to the tone parameters.

The case where step 26 is NO, that is, the case of the preset mode will be described. In step 32, it is confirmed that the preset mode flag PSFLG is "1", and the process proceeds to step 33. If the flag PSFLG is "0", go to return. In the preset mode, the numeric keypad 22 is used to select a preset number from 0 to 9.

In step 33, it is checked whether the preset light switch PSW is turned on. If it is on, go to step 34,
Write the preset data. In step 34, the tone number TCN (1) to T set for each channel is set.
CN (8), group setting data GRP for each channel
One set of preset data consisting of (1) to GRP (8) and alternative assignment setting data ALT (1) to ALT (8) of each channel
The preset memory corresponding to the preset number corresponding to the numerical value of NKY (any one of PMEM (0) to PMEM (9), which is indicated by PMEM (TENKY)) is written.

If the preset light switch PSW is off, the process goes to step 35 to read the preset data. In step 35, the preset memory PMEM corresponding to the preset number corresponding to the numeric value of the numeric keypad input data TENKY
Read a set of preset data from (TENKY) and use it as the tone number TCN (1) to TCN for each channel.
(8), Group setting data GRP for each channel (1)
~ GRP (8) and alternative assignment setting data ALT (1) to ALT (8) of each channel are loaded into the register. In the next step 36, the tone parameter corresponding to the tone color number TCN (1) to TCN (8) of each channel which has been taken in is stored in the data ROM1.
Tone parameter TPMEM (1) stored in advance in 9 ~
Each is taken out from TPMEM (64), and this is taken up by tone parameter buffer TPBUF (1) to TPBUF of each channel.
It is stored in (8) and is sent to each tone forming channel CH1 to CH8 of the tone forming circuit 18. Each tone forming channel that has received the transmitted tone parameter stores it appropriately and controls various tone elements according to this tone parameter. In the next step 37, the group setting data GRP (1) to GRP (8) and the alternative assignment setting data ALT (1) to ALT of the respective channels which have just been fetched.
The above-mentioned "assignment table" is created based on (8). The subroutine for creating this "assignment table" is shown in FIG. FIG. 12 will be described later.

When the group switch GRP is turned on, the GRP on event process of FIG. 9 is performed. Here, first, step 38
Check if the tone setting mode flag TSFLG is "1". If YES, that is, if the tone setting mode, proceed to the next step 39, but if NO, return. In step 39, it is checked whether or not the cursor CSR on the display 21 is at the group setting position (that is, the position where the grouping display "←" is displayed, that is, the position corresponding to each channel number). If YES, go to the next step 40, but if NO, go to return. In step 40, the channel number corresponding to the current cursor CSR position is fetched as the cursor channel number CHNO. In the next step 41, CHNO
Is channel 1. The grouping display "←" set in this GRP on-event process indicates that the tone color number of the channel for which this grouping display "←" is displayed is the same as the tone color number of the channel to the left of Display 21. Is. However, since there is no channel on the left in channel 1, the grouping display "←" has no meaning. Therefore, in order to prevent the grouping display "←" from being performed on channel 1, if step 41 is YES, the process goes to return, and if NO, the process goes to next step 42.

In step 42, the group setting data of the channel designated by the cursor channel number CHNO (this is
It is one of GRP (1) to GRP (8), and this is
HNO)) is set to "1". In the next step 43, the display of the tone color number corresponding to the position of the cursor CSR on the display 21 is rewritten to the grouping display “←”. Then, through step 44, go to step 45. Step
In the 45, the tone color number TCN (CHNO) of the channel specified by the cursor channel number CHNO is
Subtracted by 1 from the value CHNO-1 (that is, the channel to the left of the grouping display "←" just displayed on the display 21) is the tone number TCN (CHNO
Same value as -1). In the next step 46, the contents of the tone parameter buffer TPBUF (CHNO) of the channel for which the grouping display "←" is set by this processing is changed to the tone parameter buffer TPBUF (CHNO-1 of the channel on the left of the display 21). ) The content is the same. Then, this tone parameter buffer TPBUF (CHN
O) tone parameter, cursor channel number C
It is sent to the tone forming channel CH (CHNO) in the tone forming circuit 18 designated by the HNO. In the next step 47,
Create an "assignment table" according to the subroutine shown in FIG.

At step 44, the value CHNO + 1 obtained by adding 1 to the value of the cursor channel number CHNO is obtained, and the group setting data GRP (CHNCHN of the channel designated by this value CHNO + 1
Check if O + 1) is "1". That is, it is checked whether or not the channel on the right side on the display 21 of the channel for which the grouping display “←” is set by this processing is the grouping display “←”. If NO, go to step 45 and perform the processing as described above. If YES, step 48
And then go to step 45. In step 48, the display at the tone number display position of the channel number CHNO + 1 on the display 21 is grouped by "←".
Instead of, the tone color number TCN of the channel of number CHNO + 1
Change to the value of (CHNO + 1). This is because the tone number display of the channel to the left of it (that is, CHNO) is changed to the grouping display “←”, and the tone number of the CHNO + 1 channel does not match that.
Therefore, the display of CHNO + 1 is changed to the grouping display "←" and changed to the numerical value indicating the original tone color number.

When the alternative assign switch ALT is turned on, the ALT on event processing of FIG. 10 is performed. Here, first, in step 49, it is checked whether the tone color setting mode flag TSFLG or "1". If YES, that is, if the tone setting mode, proceed to the next step 50, but if NO, proceed to return.
In step 50, it is checked whether or not the cursor CSR on the display 21 is at the alternative assign setting position (that is, the position at which the alternative assign display "+" is displayed, that is, the middle position of the tone color number display corresponding to each channel number). If YES, go to the next step 51, but NO
Then go to return. In step 51, the channel number corresponding to the current cursor CSR position is fetched as the cursor channel number CHNO. The channel number in this case is the channel number on the right of the cursor CSR. For example, when the cursor CSR is located at an intermediate position between the channels CH1 and CH2, the channel number at the cursor position is “2”.

In step 52, the alternative assignment setting data of the channel designated by the cursor channel number CHNO (this is one of ALT (1) to ALT (8), which is indicated by ALT (CHNO)) is set to "1". Invert to "or" 0 ". In other words, the alternative assign switch ALT
Every time the is turned on, the alternative assignment setting data is inverted. In the next step 53, it is checked whether or not the alternative assignment setting data ALT (CHNO) of the channel designated by the cursor channel number CHNO is "1". If "1", the process proceeds to step 54 and the cursor on the display 21 is moved. The alternative assignment display "+" is displayed corresponding to the position of CSR, and if it is "0", the process proceeds to step 55 to erase the alternative assignment display "+" at the position of the cursor CSR on the display 21. In the next step 56, an "assign table" is created according to the subroutine of FIG.

The group setting data GRP (1) to GRP (8) and the alternative assignment setting data ALT of each channel are processed by performing the processing in the above-described procedure according to the ON operation of the group switch GRP or the alternative assignment switch ALT. The states of (1) to ALT (8) are established. And these established data GRP (1) to G
In accordance with the states of RP (8), ALT (1) to ALT (8), in-order tone assignment processing (that is, alternative assign processing) and tone assignment processing for each group are performed.
These setting data GRP for this pronunciation assignment process
Based on (1) ~ GRP (8), ALT (1) ~ ALT (8)
An "assign table" is created according to the subroutine shown in FIG. Then, by using the created "assignment table", the pronunciation assignment process is performed according to the key-on event process of FIG.

Explaining the assignment table creation subroutine of FIG. 12, first, in step 57, the group number data GN is obtained. In this embodiment, the grouping method is based on the following two criteria.

One is to group multiple channels to which the same tone number is set by the grouping display "←" into the same group, and the other is to assign multiple channels whose allocation order is set by the alternative assignment display "+". Group the channels together.

Therefore, in step 57, as an example, the number of channels whose group setting data GRP (1) to GRP (8) and alternative assignment setting data ALT (1) to ALT (8) are both "0" is counted. By doing so, the group number data GN is obtained. In other words, since the channel whose group setting data GRP (1) to GRP (8) and the alternative assignment setting data ALT (1) to ALT (8) are both "0" is the head channel of each group, The number of groups can be known by counting the number of channels.

In the next step 58, the alternative assignment flag
ALFLG (1) to ALFLG (8) are calculated for each group. Here, for each group that can be determined as described above, "1" is included in the alternative assignment setting data ALT (1) to ALT (8) of the channels belonging to the group.
The flag can be determined by checking whether there is any. This flag is set to "1" for groups that should be assigned alternatives.

In the next step 59, the channel number data in the group
GCH (1) to GCH (8) are obtained for each group. Here, the data can be determined by listing the channel numbers belonging to each group that can be determined as described above.

In the next step 60, alternative assign channel number data ALGN (1) to ALGN (8) are obtained for each group. Here, for each group that can be determined as described above, the data can be determined by counting the number of channels belonging to the group.

In the next step 61, the channel number data ACH (1,1) to ACH (8,8) by alternative assignment allocation order are obtained for each allocation order of each group. Here, among the groups that can be determined as described above, the group setting data GRP for the groups for which the alternative assignment flags ALFLG (1) to ALFLG (8) are "1".
Channels whose (1) to GRP (8) are "0" are ranked and the channel numbers are stored. Group setting data GRP
Channels in which (1) to GRP (8) are "1" have the same rank as the immediately preceding channel. That is, the plurality of channels grouped and set by the group switch GRP have the same rank in the alternative assignment.

Explaining the key-on event process of FIG. 11, first, at step 62, the key code relating to the key-on event (that is, the key code to be newly assigned for sound generation) is fetched as a new key code NKC. In the next step 63, the current group number CGN is set to the initial value "1". In the next step 64, the current group number
It is checked whether the alternative assign flag of the group designated by CGN (this is one of ALFLG (1) to ALFLG (8), which is indicated by ALFLG (CGN)) is "1". If it is "1", the process branches to step 69 to perform the alternative assigning process, and if it is not "1", the process branches to step 65 to perform the normal sounding assignment process.

In step 65, the intra-group channel number data of the group specified by the current group number CGN (this is one of GCH (1) to GCH (8), which is indicated by GCH (CGN)) is specified. In addition, the normal sound allocation processing is performed for the channels in the group. The normal sound allocation process is a generally known sound allocation process in which an empty channel is created by, for example, a truncation process, and a new key code is allocated to the empty channel. The number of channels in the group is 1.
If it consists only of channels, cancel the assignment even if the previous note is being pressed and assign a new key code,
The so-called late arrival priority processing is performed so that the pronunciation of a new sound to be generated immediately rises.

In the next step 66, the new key code NKC and the key-on signal KON are sent to the tone forming circuit 18 corresponding to the channel newly assigned as described above. In the channel in the tone forming circuit 18, the given new key code NKC and the key-on signal KON are stored as appropriate, and based on this, a tone signal having a pitch corresponding to the key code is formed. In that case, the various tone elements of the formed tone signal are controlled by the tone parameters supplied as described above.
Further, in this case, if the previous sound assigned to the channel in the tone forming circuit 18 is being sounded, the sounding of the previous sound is rapidly attenuated by the dump control.

In the next step 67, the value of the current group number CGN is incremented by 1 to switch the group to be assigned to sound generation. In the next step 68, it is checked whether the value of the current group number CGN increased by 1 is larger than the value of the group number data GN. If YES, assignment of all groups has been completed, so return is made, but if NO, there are still groups to be assigned to sound generation, so the flow returns to step 64, and the same sound assignment processing as described above is repeated. When performing the alternative assign process, the process branches from step 64 to step 69 as described above. In step 69, the alternative assign current order of the group specified by the current group number CGN (this is CALGN
It is one of (1) to CALGN (8), and this is CALGN
(Indicated by (CGN)) (that is, a value indicating the order of allocation by the alternative assignment for which the allocation process should be performed this time) is incremented by 1. In addition, each group's alternative assignment current order CALGN (1) to CALGN (8)
Is “0” when the power is turned on and the preset data is read
Shall be initialized to. Therefore, when starting the alternative assignment, the alternative assignment current order CALGN (CG
The value of N) becomes "1" (that is, the first allocation order).

In the next step 70, the value of the alternative assign current order CALGN (CGN) is the number of alternative assign channels of the same group specified by the current group number CGN (this is ALGN (1) ~
It is one of ALGN (8), and it is checked whether it is larger than the value of ALGN (CGN). If YES, alternative assign current order CALGN (CGN)
This means that the assignment order indicated by is greater than the number of channels for alternative assignment in the group, that is, the order that does not actually exist, so the value of this CALGN (CGN) in step 71. Is returned to the value "1" of the first allocation rank. If NO, jump to step 71 and go to step 72.

In step 72, the channel number data ACH according to the alternative assignment allocation order in the "assignment table"
Current group number C among (1,1) to ACH (8,8)
GN and Alternative Assign Current Order CALG
By referring to the one corresponding to N (CGN) (which is indicated by ACH (CGH, CALGN)), it is checked whether or not there are a plurality of channels corresponding to the allocation order. For example, since the number of channels is 1 in each allocation order of the channels 5, 6, 7, 8 in FIG. 3 (d) and the channels 4 and 5 in FIG.
Is judged to be NO. On the other hand, the channel of FIG. 3 (e)
6,7,8 have the same assignment order, channels 3,4,5 in FIG. 3 (f) have the same assignment order, and channels 6,7,8 in FIG. 3 (f) have the same assignment order. Since it is a rank, the number of channels is plural in each of these allocation ranks, so that YES is determined in step 72.

If NO is determined in step 72, the process proceeds to step 73, and one channel specified by the above-mentioned channel number data ACH (CGN, CALGN) by alternative assignment allocation order is set as a channel to which the new key code NKC is to be allocated. .

On the other hand, if YES is determined in step 72, the process proceeds to step 74, and normal assignment processing is performed for a plurality of channels specified by the above-mentioned channel number data ACH (CGN, CALGN) by alternative assignment assignment order. , Which determines one channel to which the new key code NKC should be assigned.

After determining one channel to which the new key code NKC is assigned in steps 73 and 74, the above-mentioned step 66 is performed.
, And the same processing is performed thereafter.

As is clear from the above, one new key code NKC
Is assigned to each group, and the pronunciation of the musical tone corresponding to the new key code NKC is assigned to each group. Therefore, musical tones corresponding to the same key code are generated in multiple sequences corresponding to the number of groups.
Further, in the group to which the alternative assignment is performed, the allocation order is sequentially switched every time the new key code NKC is given (that is, every timing at which a musical tone should be generated) by the process of step 69. Further, in this case, when the allocation of the final rank is finished, the allocation rank is returned to the initial rank by the processing of step 71, and the allocation rank is repeatedly switched in order.

Although details of the key-off event process are not particularly shown, in this key-off event process, the key code related to the key-off event is fetched as a new key code NKC, and the channel to which this new key code NKC is assigned is detected and detected. A key-off signal may be sent to the tone forming circuit 18 corresponding to the channel.

The tone number of the tone parameter set for each channel displayed on the display 21, the alternative assignment display "+" and the grouping display "←"
If it is as in each example of FIGS. (A) to (f), the tone color number TC (1) of each channel in the RAM 13 corresponding to this
~ TCN (8), group setting data GRP (1) ~ GRP
(8) and alternative assignment setting data ALT
The states of (1) to ALT (8) are as shown in Tables 1a to 1f below. In other words, by setting these data as shown in Tables 1a to 1f below, FIG.
The display as shown in each example of (f) is obtained. Further, data GRP (1) to GRP (8), ALT (1) to ALT set as shown in Tables 1a to 1f below.
The contents of the "assignment table" created based on (8) are as shown in Tables 2a to 2f below.

Table 2a GN = 8 GCH (1) = 1 ALFLG (1) = 0 GCH (2) = 2 ALFLG (2) = 0 GCH (3) = 3 ALFLG (3) = 0 GCH (4) = 4 ALFLG ( 4) = 0 GCH (5) = 5 ALFLG (5) = 0 GCH (6) = 6 ALFLG (6) = 0 GCH (7) = 7 ALFLG (7) = 0 GCH (8) = 8 ALFLG (8) = 0 Table 2b GN = 2 GCH (1) = 1,2,3,4,5 GCH (2) = 6,7,8 ALFLG (1) = 0 ALFLG (2) = 0 Table 2c GN = 3 GCH (1) = 1,2,3 ALFLG (1) = 0 GCH (2) = 4,5,6 ALFLG (2) = 0 GCH (3) = 6,7 ALFLG (3) = 0 Table 2d GN = 2 GCH (1) = 1,2,3,4 ALFLG (1) = 0 GCH (2) = 5,6,7,8 ALFLG (2) = 1 ALGN (2) = 4 ACH ( 2,1) = 5 ACH (2,2) = 6 ACH (2,3) = 7 ACH (2,4) = 8 Table 2e GN = 2 GCH (1) = 1,2,3 ALFLG (1) = 0 GCH (2) = 4,5,6,7,8 ALFLG (2) = 1 ALGN (2) = 3 ACH ( 2,1) = 4 ACH (2,2) = 5 ACH (2,3) = 6,7,8 Table 2f GN = 2 GCH (1) = 1,2 GCH (2) = 3,4,5,6,7,8 ALFLG (1) = 0 ALFLG (2) = 1 ALGN (2) = 2 ACH ( 2,1) = 3,4,5 ACH (2,2) = 6,7,8 FIG. 3 (a) shows an example in which different tone color numbers are set for all channels. As a result, the number of groups becomes the same as the number of channels, and each group has one channel. In this case, a single-tone sound is generated, and musical tones corresponding to one pitch (one key) are assigned to all channels. Therefore, there are 8 musical tones corresponding to one pitch (1 key).
It is pronounced simultaneously in a series (with different tones in each series). Tables 1a and 2a correspond to FIG. 3 (a).

FIG. 3B shows an example in which the channels are classified and set into two groups: a group consisting of channels CH1 to CH5 and a group consisting of channels CH6 to CH8. This group is set by displaying the grouping display "←" by operating the group switch GRP as described above, and the same tone color number is set for the channels belonging to the same group. . Although the pronunciation form is two-series pronunciation, the total number of channels in each group is different, so that not all sounds are produced in two series. That is, different five tones can be assigned to the channels CH1 to CH5 of the first group, and three of them can be assigned to the channels CH6 to CH8 of the second group, and these three tones are pronounced in two series, The other two tones are pronounced in only one sequence. Table 1b and
Table 2b corresponds to FIG. 3 (b). The sound allocation for each group is performed according to the normal sound allocation processing (the processing of steps 63, 64, 65, 66, 67, 68 in FIG. 10).

FIG. 3C shows a group consisting of channels CH1 to CH3, a group consisting of channels CH4 to CH6, and a channel CH.
An example of classification and setting into 3 groups of 7, CH8 is shown below. Similar to the above, this group is set by displaying the grouping display "←" by operating the group switch GRP, and the same tone color number is set for the channels belonging to the same group. There is. The pronunciation form is three-series pronunciation, and different three tones can be assigned to the channels CH1 to CH3 of the first group, and the same three tones can be assigned to the channels CH4 to CH6 of the second group. Sounds are also assigned to channels CH7, CH8 of the third group. Therefore,
Two tones are pronounced in three series, and the other one is pronounced in two series. Tables 1c and 2c correspond to FIG. 3 (c). The sound allocation for each group is performed according to the normal sound allocation processing.

FIG. 3 (d) shows an example of classification and setting into two groups, a group consisting of channels CH1 to CH4 and a group consisting of channels CH5 to CH8. The first group of channels CH1 to CH4 is the group switch GRP, as described above.
Although it was set by displaying the grouping display "←" by operating, channel CH5
The second group of CH8 is set by displaying the alternative assignment display "+" by operating the alternative assignment switch ALT as described above. In this case, channel CH1
The sound allocation of the first group consisting of CH4 to CH4 is performed according to the normal sound allocation processing similar to that described above, but the sound allocation of the second group consisting of channels CH5 to CH8 is performed by the alternative assigning process (step of FIG. 10). 69,70,
71, 72, 73)). For example, C4, D4, G
Assuming that each key of 4, A4, F4 and E4 is pressed in sequence (however, the key release timings are not necessarily in this order), these pressed keys follow the normal sound allocation process and the channels CH1 to CH1 of the first group. It is appropriately assigned to any of CH4, and they are generated with the tone color of the same tone number 6. In parallel with this, these pressed keys are sequentially assigned to the channels CH5 to CH8 of the second group, and each is sounded with a different tone color. In this sequential allocation, C4 is CH5, D4 is CH6, G4 is
CH7, A4 is CH8, F4 is CH5, E4 is CH6, and so on. In this case, since the order assignment control is forcibly performed, for example, even if C4 which is sounding first on channel CH5 has not been released, the C4 of channel CH5 is pressed in response to the key depression of F4. Release the allocation and there F
Assign 4. Tables 1d and 2d correspond to FIG. 3 (d).

Note that the tone color numbers set for the channels to be subjected to the alternative assignment process do not necessarily have to be different, and may be the same tone color numbers. This is because, for example, if there is a pitch control function for each channel, it is possible to make the characteristics different from each other as long as it is possible to perform some musical sound element control such as making the pitch control contents different from each other. is there.

FIG. 3 (e) shows an example of classification and setting into two groups, a group consisting of channels CH1 to CH3 and a group consisting of channels CH4 to CH8. The first group of channels CH1 to CH3 is the group switch GRP, as described above.
It is set by operating. The second group of channels CH4 to CH8 is channel CH5,
For CH6, by operating the alternative assign switch ALT, the alternative assign display "+"
Is set by displaying
Channel CH6 subject to alternative assignment
Channels CH7 and CH8 on the right side of are further set by operating the group switch GRP, and by doing so, multiple channels CH6 to CH8 are assigned to the same assignment order "3" in the alternative assignment. It is a thing. Channel CH1 to CH3
The sound allocation of the first group consisting of channels is performed according to the normal sound allocation processing, while the sound allocation of the second group consisting of channels CH4 to CH8 is carried out by the alternative assigning processing (steps 69, 70, 71, 72, 73, 74)). Here, the normal allocation process (step 74 in FIG. 10) determines which of the plurality of channels CH6 to CH8 is to be allocated in the allocation order “3”.
Process)). Tables 1e and 2e correspond to FIG. 3 (e).

FIG. 3 (f) shows an example of classification and setting into two groups, a group consisting of channels CH1 and CH2 and a group consisting of channels CH3 to CH8. The first group of channels CH1 and CH2 is the group switch GRP, as described above.
It is set by operating. The second group consisting of the channels CH3 to CH8 groups the channels CH3 to CH5 by operating the group switch GRP, and groups the channels CH6 to CH8 separately by operating the group switch GRP. Alternative assign switch ALT
Is set by performing an alternative assignment between the groups of channels CH3 to CH5 and the groups of channels CH6 to CH8 by operating. The channels CH3 to CH5 correspond to the same allocation order "1" in the alternative assignment, and the channels CH6 to CH8 correspond to the same allocation order "2" in the alternative assignment. Channel CH1, CH
The sound allocation of the first group of 2s is performed according to the normal sound allocation processing. Tone allocation between the groups of channels CH3 to CH5 and the groups of channels CH6 to CH8 is an alternative assignment process (step in FIG. 10).
69, 70, 71, 72, 73, 74)). There, a plurality of channel CHs are assigned with allocation order "1".
Which of 3 to CH5 is to be allocated is determined by a normal allocation process (process of step 74 in FIG. 10), and similarly, a plurality of channels CH6 to C are allocated in the allocation order "2".
Which of the H8 is to be assigned is determined by the normal assignment process (10th
Processing of step 74 in the figure). Tables 1f and 2f correspond to FIG. 3 (f).

Although the present invention is implemented by software processing in the above embodiment, it goes without saying that it may be implemented by a dedicated hardware device.

In the above embodiment, one channel is described as a one-tone sound generation channel, but it may be a channel capable of sounding a plurality of sounds such as two sounds. For example, in the case of a channel capable of producing two tones, another channel CH1 'of the same channel number 1 to 8 corresponding to each channel CH1 to CH8
It is assumed that each CH8 'is provided. Then, according to the present invention, allocation processing is performed for each channel number 1 to 8 and then each channel number 1
Which of CH1 to CH8 and CH1 'to CH8' should be assigned to each of the channels 8 to 8 is determined according to a normal tone generation assignment process. In this case, the channel with the same channel number
In CH1 to CH8 and CH1 'to CH8', tone formation is performed with the same tone parameters. By doing so, it is possible to further increase the number of synchronous sound generation while enjoying the benefits of the special sound generation allocation processing according to the present invention.

As the method of setting the grouping, other appropriate methods may be used without depending on the switch operation and the processing procedure as shown in the above embodiment. Also, the criteria for grouping are not limited to those shown in the above embodiment (those set by the operation of the group switch GRP are made into a common group, or those subject to alternative assignment are made into a common group). , May be appropriately determined. For example, if the same tone color number is set, the groups may be the same even if they are not designated by the group switch GRP.

Further, in the above-described embodiment, the adjacent channels are grouped into groups, but the present invention is not limited to this, and the grouping is performed by arbitrarily setting the number of the desired channel to be grouped. Good.

Similarly, in the above embodiment, the order assignment process (alternative assign process) is performed between adjacent channels, but the present invention is not limited to this, and channels to be assigned in a desired order can be arbitrarily assigned by channel numbers. It may be set.

Further, the setting of the grouping and the setting of the allocation order may be selected from some preset modes without depending on the manual setting by the performer.

〔The invention's effect〕

As described above, according to the present invention, the tone forming channels are set to be divided into a plurality of groups each including one or a plurality of channels, and the tone generation to be performed on the channels in the group is set for each set group. The pitch information of the musical tones to be generated is assigned to the channels in the group because the pitch information of the musical tones to be generated is assigned to each group, and the tone element control which is different from each other is performed at least between the groups. And, in each group, the tone color, pitch, and tone of the tones formed by the channels belonging to each group.
At least one musical tone element such as a volume envelope is different from at least other groups, so that musical tone signals based on the same pitch information can be simultaneously generated with different tones or musical tone characteristics. In addition to producing a multi-series effect, and because the setting of this group is made to be completely arbitrary, only some of the key depression sounds are multi-series sounds and other key depression sounds are one-series sounds, or It is possible to easily perform complicated multi-series control such as making the number of sequences of some key-depression sounds different from the number of sequences of other key-depression sounds.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an outline of the present invention, FIG. 2 is a hardware configuration block diagram showing an embodiment of a tone signal generating apparatus according to the present invention, and FIGS. FIG. 4 is a view showing some examples of display contents on the display, FIG. 4 is a memory map showing an example of data shown in FIG. 2 and stored data in a working RAM, and FIGS. 5 to 12 are micro maps shown in FIG. Flow charts showing examples of processing executed by a computer,
Is. 1 ... Music tone forming means, CH1 to CHn ... Music tone forming channels, 2
... group setting means, 3 ... assignment means, 4 ... tone element control means, 10 ... tone signal generator, 20 ... operation panel section, 21
… Display, 22… Numeric keypad, TCSET… Tone setting mode switch, GRP… Group switch, ALT… Alternative assign switch.

Claims (1)

[Claims] 1. A plurality of tone forming channels each forming a tone signal of a tone pitch corresponding to assigned tone pitch information, and each channel is classified into a plurality of groups each including an arbitrary one or a plurality of channels. Group setting means for performing the setting, and corresponding pitch information for one musical tone specified to be generated to the channels in the group for each group set by the group setting means. Assigning means for enabling each tone group to generate a tone signal corresponding to the pitch information by performing the assigning process, and the tone signal formed therein for each tone forming channel. A musical sound element control signal for controlling the musical sound elements of at least one group, and at least the groups set by the group setting means are different from each other. Tone signal generation device with a musical tone element control means for supplying the tone element control signal that.