JPH11194765A - Sound generation channel controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the control data of MIDI data set by a player from being changed by the control data of inputted MIDI data. SOLUTION: A CPU 2 has registers for 32 sound generation channels for MIDI data of 16 channels, stores event data of MIDI IN data inputted from a MIDI terminal 7 or FDD 6 in the registers of the sound generation channels (1) to (16) and sends them out to a sound source 3, and stores internal event data inputted from a keyboard 1 in the registers of the sound generation channels (17) to (32) and sends them out to the sound source 3 and MIDI terminal 7. In this case, sound generation is controlled with control data set with a switch group 4 for either group of 16 sound generation channels and with the control data of the MIDI data for the other group of 16 sound generation channels. The state of the sound generation control is displayed on an LCD 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound channel control device for controlling a sound channel when a musical tone is sounded in multiple channels.

[0002]

2. Description of the Related Art MIDI is known as a system for producing musical tones in multiple channels. MIDI is an interface for transmitting music data by digital signals, and is for transmitting music data, which is performance information, from one musical instrument to another musical instrument. The music data is composed of 16 channels in the case of a standard MIDI file.
It can be played with 16 different musical tones. For this reason, MIDI-compatible musical instruments (hereinafter “MIDI musical instruments”)
) Is provided with a MIDI IN terminal for inputting MIDI data from another MIDI instrument and a MIDI OUT terminal for outputting played music data as MIDI data to another MIDI instrument. Some MIDI musical instruments have a floppy disk drive. When a floppy disk on which MIDI data is recorded is inserted, the music data is reproduced. In this manner, MIDI data input from an external recording medium such as a floppy disk can be reproduced with 16 different musical tones.

[0003] MIDI data is composed of one status byte and one or two data bytes. The status byte is composed of control data such as note-on and note-off, program change for changing timbre, control change for changing modulation, and the like. The data byte is composed of pitch (note) data, tone color data, pitch bend data, and the like. For example, when the status is a program change, the timbre of the timbre data following the status can be changed in place of the currently sounding timbre in an arbitrary channel of the input MIDI data.

[0004]

On the other hand, the MIDI musical instrument itself is provided with a control for setting control data such as a tone of a musical tone to be pronounced and a pitch bend. Control data can be set. However, even if the control data is set by the operator of the MIDI instrument, the input M
There has been a problem that the set control data is changed according to the status of the IDI data and cannot be restored. Furthermore, the control data of each channel must be set at a deep level in the menu hierarchy, and the setting operation for returning to the original state becomes extremely complicated. An object of the present invention is to prevent control data of musical tone data set by a player from being changed by control data of input musical tone data.

[0005]

According to the present invention, there are provided first storage means for storing external tone data of a plurality of channels inputted from the outside for each channel, and a first storage means having the same number as a plurality of internally generated channels. Second storage means for storing the internal tone data of the channel, mode setting means for setting one of the different performance modes, and first and second modes in accordance with the performance mode set by the mode setting means. Designate one of the second storage means,
A storage designating means for setting control data of the designated storage means, a control data setting means for setting control data of the storage means designated by the storage designating means, and an external device for the storage means designated by the storage designating means. Regardless of the control data included in the tone data and the internal tone data, the tone generation is controlled based on the control data set by the control data setting means. Sounding control means for controlling sounding based on control data included in the musical sound data. According to the present invention, the control data set for each channel in one of the external tone data and the internal tone data constituted by a plurality of channels is independent of the control data included in the other tone data. Can be maintained.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment to which a sound channel control device of the present invention is applied will be described below.
This will be described using a DI musical instrument as an example. FIG. 1 is a block diagram showing a MIDI musical instrument system according to the embodiment.
The keyboard 1 inputs event data such as pitch data of note-on or note-off, velocity data, and the like in accordance with a player's operation. The CPU 2 includes a program ROM, a work RAM, a sequencer storing music data, and a video R.
This is a one-chip microcomputer provided with an AM (neither is shown), and together with the function of controlling the entire MIDI musical instrument, constitutes the function of the sounding channel control device of the present invention.

A CPU 1, a sound source 3, a switch group 4, an LCD (liquid crystal display) 5, an FDD (floppy disk drive) 6, and a MIDI input via a system bus and an interface (not shown). The output terminal 7, that is, the MIDI IN terminal and the MIDI OUT terminal are connected. Further, a waveform ROM 8 and an amplifier 9 are connected to the sound source 3, and two speakers 10 are connected to the amplifier 9. The sound source 3 generates a tone signal based on the event data of the tone given from the CPU 2 based on the waveform data read from the waveform ROM 8 and outputs the tone signal to the amplifier 9. The amplifier 9 converts the input tone signal from a digital signal to an analog signal, performs a filtering process and an amplification process, and emits the sound from the speaker 10.

In general, in a MIDI musical instrument, as shown in FIG. 2, event data which is internal tone data input from the keyboard 1 (or sequencer)
It is output to the sound source 3 and the MIDI OUT terminal 10 via the PU2. In addition, MIDIIN terminal 10 or FDD6
MIDI data, which is external tone data input from the CPU 2, is output to the sound source 3 via the CPU 2. The feature of this embodiment is that, as described later, 16 channels of MIDI data input from the MIDI IN terminal 10 and MIDI data
16 channels of M output from the DI OUT terminal 10
The IDI data is stored in registers of different tone generation channels of the CPU 2 and controlled.

FIG. 3 shows the structure of MIDI data as external tone data and internal tone data. MID
As shown in FIG. 3A, the I data is composed of 1-byte status and 2 (or 1) -byte data. In the status byte, the most significant bit is always 1, the next 3 bits represent a channel message, and the remaining 4 bits represent a channel. The most significant bit of the data byte is always 0, and the remaining 7 bits constitute data. For example, note-off MIDI data in channel 1 has a status of 80 (H) as shown in FIG. 3B, the first byte of data is pitch data, and the second byte is velocity data. (The value is “0” because the note is off.) Also, note-on MIDI data in channel 16 has a status of 9F as shown in FIG.
(H), the first byte of data is pitch data,
The data in the second byte is velocity data.

A switch group 4 in FIG. 1 sets control data (parameters) such as a tone color and a pitch bend of a musical tone to be generated by a player's operation. The set control data is stored in the work RAM of the CPU 2. LCD
5 displays information on MIDI data and control data on the screen. FIG. 4 is a diagram illustrating an operation unit including the switch group 4 and the LCD 5. The switch group 4 includes a power switch 41, a numeric keypad 42 for setting a tone color, a cursor key 43 for setting a volume and a channel, a mixer selection switch 4
4 and a channel selection switch 45. Note that the mixer selection switch 44
"INTERNAL mode", "EXTERNAL mode", "EXTERNAL SOLO mode", "EX
The performance mode changes cyclically, such as "TERNAL PLAY mode".

The LCD 5 has a screen divided into a plurality of areas according to the contents to be displayed. That is, information related to the tone color is displayed in the area 51, information related to the volume is displayed in the area 52, information on / off is displayed in the area 53, and a mode set by the mixer selection switch 44 is set in the area 54. , And information indicating the state of each channel are displayed. As for the information of each channel, when the performance is not performed or the volume is not set, as shown in FIG. 5, each channel number, a frame surrounding the number, and four indicators are displayed above each channel.
Then, during the performance, as shown in FIG. 6A, an indicator according to the volume is displayed for each channel.
When setting the volume, an indicator corresponding to the set value is displayed as shown in FIG.

Next, the operation of this embodiment will be described with reference to FIGS.
The flowchart of the CPU 2 shown in FIG.
The display of the LCD 5 in each mode shown in FIGS. 2 to 25 and the control method of the MIDI channel and an example of the operation unit shown in FIG. 26 will be described. Note that FIGS.
"INTERNAL mode", "EXTNRN"
AL mode, EXTERNAL SOLO mode, and EXTERNAL PLAY mode. Channels 1 to 16 among the sound generation channels 1 to 32 are connected to an external device (MIDI IN terminal 7, FDD
Channels for MIDI IN data (external tone data) input from 6), and channels 17 to 32
Is a channel for MIDI data (internal tone data) from the inside (keyboard 1, sequencer).

FIG. 7 is a flow chart of the main routine.
When the power switch 41 shown in FIG. 4 is turned on, a predetermined initialization is performed (step S1). For example, the pointer k of the current channel designating one of the tone generation channels 1 to 32, the pointer CH designating the channel to be corrected, and the mode select register MS are set to 1 by this initialization. After the initialization, steps S2 to S
6 is executed. That is, a switch process for scanning the switch group 4 to detect the state of each switch (step S2), an internal event process for processing event data input from the keyboard 1 (step S3),
A MIDI IN process for processing MIDI data input from the MIDI IN terminal 10 (step S4), a sound generation instruction process for transmitting event data to the sound source 3 (step S5), and other processes (step S6) are performed.

FIGS. 8 to 15 are detailed flow charts of the switching process in step S2 of FIG. In FIG. 8, it is determined whether or not the mixer selection switch 44 has been turned on (step S7). If the switch 44 has been turned on, the mode set register MS is incremented (step S8). As described above, the set mode is “INTERNA
L mode "," EXTERNAL mode "," EXTE
RNAL SOLO mode ”,“ EXTERNAL P
LAY mode ”, and the MS range is 1
~ 4. Therefore, it is determined whether or not the incremented MS has reached 5 which is a value exceeding this range (step S9), and if it has reached 5, the MS is set to 1 (step S10).

After step S10, if the mixer selection switch 44 is not turned on in step S7, or if MS is not 5 in step S9, a process corresponding to the value of MS is performed. It is determined whether the MS is 1 or not (step S11).
Mode, and as shown in FIG.
Only the characters "NTERNAL" are displayed (step S1).
2). Then, a value obtained by adding 16 to the value of the pointer CH designating the channel to be corrected is set to the pointer k designating the current channel (step S13),
The switch processing ends. As described above, since k and CH are both set to 1 in the initialization of the main routine of FIG. 7, the sound channel 17 becomes the current channel at first.

If the MS is not 1 in step S11, it is determined whether or not the MS is 2 (step S11).
14). When the MS is 2, the mode is the “EXTERNAL mode”, and as shown in FIG.
Is displayed in the area 54 (step S15). Then, the value of CH is set to the pointer k (step S16), and this switch processing ends.

After setting the value of the pointer k in step S13 or S16, it is determined whether or not the channel selection switch 45 is turned on in the flow of FIG. 9 (step S17). When the switch is turned on, the channel number is set in the pointer m (step S18). Then, the frame ONF (m) which is a flag for displaying the frame of the channel number is inverted (step S19).

Next, it is determined whether the MS is 1 or 2 (step S20A). If the MS is 1 or 2, it is determined whether or not the frame ONF (m) is 1 (step S20B). If the flag is 1, the m-th frame is displayed (step S21). . On the other hand, if this flag is not 1, the m-th frame is turned off (step S2).
2). For example, as shown in FIG. 22 (1) and FIG. 23 (1), frames of channels 1, 3, 5,...
The frames of channels 2, 4, 9,..., 16 are turned off.
After the frame is displayed or turned off, M is set in step S23.
It is determined whether S is 1 or not. If MS is 1, 16 is added to the value of m (step S2).
4). After the addition or when MS is not 1, the sound generation ONF (m) which is a flag for validating (sound generation) the corresponding sound generation channel is inverted (step S25).

After inverting this flag or at step S
If the channel selection switch 45 is not turned on in step 17, it is determined whether or not the correction flag is 1 in the flow of FIG. 10 (step S26). The correction flag is a flag that is set to 1 when changing the tone color data set for the channel, that is, the control data. If this flag is not 1, it is determined whether or not the cursor switch 43 has been turned on (step S27),
When it is turned on, the correction flag is set to 1 (step S28). That is, the cursor switch 43 is a trigger switch for setting the correction flag to 1 and starting a correction operation.

In step S26, the correction flag is set to 1
If it is, it is determined whether or not the cursor switch 43 has been turned on (again) (step S29). When this switch is turned on, the value of the timer register T in which the predetermined time of the operation waiting limit is set is cleared to 0 (step S30). Then, it is determined whether or not the left switch or the right switch of the cursor switch 43 has been turned on (step S31). When either the left switch or the right switch is turned on, first, it is determined whether or not the left switch is turned on (step S32). When the left switch is turned on, the pointer CH is decremented (step S33). Then, as a result of the decrement, 1
It is determined whether or not CH in the range of ~ 16 has become 0 (step S34), and when it has become 0, 16 is set in CH (step S35).

In step S32, if the switch turned on is not the left switch, that is, if the right switch is turned on, CH is incremented (step S36). Then, as a result of the increment, 1 to 16
It is determined whether or not the number of CHs in the range of has reached 17 (step S37). When the number has reached 17, CH is set to 1 (step S38).

When the value of CH is in the range of 1 to 16 as a result of the decrement or increment, or when the value of CH exceeds the range of 1 to 16 as a result of the decrement or increment, CH is set to 1 or 16. If so, the channel number of the channel is blinked (step S39). For example, when the value of CH is 5, as shown in FIG. 26, the number of channel 5 in area 54 is blinked. Then, in the flow of FIG. 11, it is determined whether or not the ten key 42 is turned on (step S40). If the numeric keypad 42 is not turned on,
The switch processing flow ends. If the numeric keypad 42 is turned on, the timer register T is cleared to 0 (step S41).

Next, it is determined whether or not the correction flag is 1 (step S42). If this flag is 1, it is determined whether or not the MS is 1 (step S43). If MS is 1, i.e. "INTERN
If the mode is “AL mode” or the correction flag is not 1 in step S42, the channel (CH + 1)
The turned-on number of the numeric keypad 42 is set in the register TONE (CH + 16) indicating the tone color of 6) (step S).
44). For example, when CH = 1, FIG.
As shown in (2), timbre data is set in the channel 17.

On the other hand, if the MS is not 1, ie, “EX
TERNAL mode ”,“ EXTERNAL SOLO
Mode or the EXTERNAL PLAY mode, the ON number of the numeric keypad 42 is set to TONE (CH) (step S).
45). For example, when CH = 5, FIG.
(2) As shown in FIG. 25 (2), tone color data is set to channel 5.

After setting the number on the numeric keypad,
E data is converted to MIDI data,
The signal is transmitted to the channel corresponding to DI OUT (step S46). Then, the turned-on number and tone name of the ten key 42 are displayed on the LCD 5 shown in FIG. 4 (step S47). For example, when the numeric keypad 1 is turned on in the “INTERNAL mode”, as shown in FIG. 26, the number “001” and “GrandPn” representing the grand piano which is the tone name corresponding to the number are displayed.
"o" is displayed in the area 51.

If the turned-on cursor key 43 is not the left / right key in step S31 of FIG. 10, that is, if it is the up / down key, the number of the pointer CH is flashed in the flow of FIG. 12 (step S48). Next, it is determined whether or not the MS is 1 (step S4).
9). When the MS is 1, that is, in the "INTERNAL mode", a value obtained by adding 16 to CH is set in the pointer k of the current channel (step S).
50). On the other hand, when MS is 2 to 4, that is,
L mode "," EXTERNAL SOLO mode ",
If the mode is any of the “EXTERNAL PLAY mode”, the value of CH is set to k (step S51).

After setting the value of the pointer k in step S50 or S51, it is determined whether or not the turned-on cursor switch 43 is an upper switch (step S52). If the switch is the upper switch, the value of the volume register VOL (k) of the current channel is incremented by a predetermined value (step S53). on the other hand,
When the turned on cursor switch 43 is not the upper switch, that is, when the lower switch is turned on, VOL
The value of (k) is decremented by a predetermined value (Step S)
54). After the value of VOL (k) is incremented or decremented, the value is displayed on the indicator as shown in FIG. 6 (2) (step S55). Thereafter, the flow shifts to step S40 in FIG.
It is determined whether or not is turned on. For example, VOL (5)
Is 100, "VOLUMU 100" is displayed in the area 52 as shown in FIG. Then, an indicator corresponding to the set values of VOL (1) to (16) is displayed in area 54.

After setting the correction flag to 1 in step S28 of FIG. 10, in the flow of FIG.
The display of the channel indicator shown in FIG. 5 is turned off (step S56). Next, it is determined whether or not the MS is 1 (step S57). If MS is 1, ie, "INT
In the “ERNAL mode”, the pointer p
Is set (step S58). On the other hand, MS is 2-4
That is, “EXTERNAL mode”, “EXTERN mode”
AL SOLO mode ”,“ EXTERNALPLAY ”
If it is one of the modes, 1 is set to p (step S59). Next, the pointer j indicating the indicator is set to 1 (step S60A). Thereafter, an indicator (j) is displayed according to the value of VOL (k) while incrementing j (step S60).
B). Next, p is incremented (step S6).
1), j is incremented (step S62). Then, it is determined whether or not MS is 1 (step S6).
3).

When the MS is 1, that is, in the "INTERNAL mode", it is determined whether or not the pointer p has reached 33 (step S64). On the other hand, MS has 2 to 4, ie, “EXTERNAL mode”, “EXTERNAL mode”.
L SOLO mode ”,“ EXTERNAL PLAY ”
Mode is one of the modes, p is 17
It is determined whether or not has become (step S65). If p is within the range of the channel in step S64 or step S65, the process proceeds to step S60B. On the other hand, if p has become 17 or 33 in step S64 or step S65, that is, if the display of the indicators of all 16 channels has been completed, the timer register T is cleared to 0 (step S6).
6), release the timer interrupt prohibition (step S)
67). Thereafter, the flow shifts to step S40 in FIG. 11 to determine whether or not the numeric keypad 42 has been turned on.

In step S14 of FIG.
In other words, if it is not “EXTERNAL mode”,
In the flow of FIG. 14, it is determined whether the MS is 3 or not (step S68). The MS has 3 or “EXTE
In the case of “RNAL SOLO mode”, “EXT
"ERNAL SOLO" is displayed (step S
69). Next, the pointer n is set to 1 (step S70), and the following loop processing is performed while incrementing n.

That is, it is determined whether or not n and the pointer k indicating the current channel are the same (step S).
71) If they are the same, 1 is set to the sound generation ONF (n) (step S72). Next, 1 is set to the frame ONF (n) (step S73), and the n-th frame is displayed (step S74). Then, n is incremented (step S75). If n is not the same as k in step S71, 0 is set to the sound ONF (n) (step S76). Next, 0 is set in the frame ONF (n).
Is set (step S77), and the n-th frame is turned off (step S78). Then, n is incremented in step S75. After incrementing n,
It is determined whether or not n has become 17 (step S79),
If n is equal to or smaller than 16, the flow shifts to step S71 to repeat the loop processing. If n has become 17 in step S79, the flow shifts to step S17 in FIG. 9 to determine whether or not the channel selection switch 45 has been turned on.

For example, “EXTERNA” in FIG.
In the “L SOLO mode”, the pointer k of the current channel is 5. Therefore, only the frame of the number of channel 5 is displayed, and the frames of the numbers of the other channels are turned off. That is, in this mode, only one of the 16 sound channels is an effective channel.

In step S68 of FIG.
If not, the MS is 4 or "EXTERNAL
PLAY mode ". In this case, FIG.
In the flow of 5, "EXTERNAL PLAY"
Is displayed (step S80). Next, the pointer n is set to 1 (step S81), and the following loop processing is performed while incrementing n.

That is, it is determined whether or not n and the pointer k indicating the current channel are the same (step S).
82) If they are the same, 0 is set to the sound generation ONF (n) (step S83). Next, the timbre TONE (1) of one of the sound channels (17) to (32), in this embodiment, the sound channel (17).
7) and volume VOL (17), sounding channel (1)
-TONE (n) and volume VOL of one sounding channel (n) designated by pointer n in (16).
(N) That is, the program change or the like is copied (step S84). For example, if the current channel is the sound channel (5), the tone and volume set in the sound channel (5) are copied to the sound channel (17) as shown in FIG.

Next, 0 is set in the frame ONF (n) (step S85), and the n-th frame is turned off (step S8).
6). Then, n is incremented (step S8).
7). If n is not the same as k in step S82, 1 is set to sound generation ONF (n) (step S88). Next, 1 is set to the frame ONF (n) (step S89), and the n-th frame is displayed (step S9).
0). Then, n is incremented in step S87. After incrementing n, it is determined whether or not n has become 17 (step S91). If n is 16 or less, the process shifts to step S82 to repeat the loop processing. When n becomes 17 in step S91, the process proceeds to step S17 in FIG. 9, and it is determined whether or not the channel selection switch 45 is turned on.

As described above, in the above switch processing, the mixer settings such as the tone color and the volume by the switch group 4 are determined according to the mode specified by the MS. That is, in the case of the “INTERNAL mode”, FIG.
As shown in (2), sounding channels (1) to (32)
Among them, the mixer settings can be made for the sound channels (17) to (32), and the sound channels (1) to (1) can be set.
For 6), the mixer settings are invalidated. On the other hand, "E
XTERNAL mode ”,“ EXTERNAL SOL
In the case of the “O mode” and the “EXTERNAL PLAY mode”, as shown in FIGS. 23 (2) to 25 (2),
Mixer settings can be made for the sound channels (1) to (16), and the mixer settings become invalid for the sound channels (17) to (32).

FIG. 16 is a flow chart of the internal event processing in step S3 of the main routine of FIG. In this process, it is determined whether or not an internal event has occurred, that is, whether or not tone data has been input from the keyboard 1 or the sequencer (step S92). If an internal event has occurred, the internal event data is stored in the designated sounding channel (step S93). After storing the internal event data or when no internal event has occurred, the process returns to the main routine of FIG.

FIG. 17 shows a step S4 of the main routine.
5 is a flow of a MIDI IN process in FIG. In this processing, the pointer n is set to 1 (step S94), and the following loop processing is repeated while incrementing n.
That is, the event data (M
It is determined whether or not IDI data has been input (step S95), and if so, the event data is stored in the sound channel (n) (step S95).
96). After storing the data or when there is no input of event data in step S95, n is incremented (step S97). And n is 17
Is determined (step S98), and n is set to 16
If it is less than the above, the process proceeds to step S95, and the above loop processing is repeated. In step S98, n is 1
When the number reaches 7, the MIDI IN process is terminated, and the process returns to the main routine of FIG.

FIGS. 18 to 20 show a flow of the sounding instruction processing in step S5 of the main routine. In this process, first, it is determined whether or not the MS is 1 (step S99). When the MS is 1, that is, in the "INTERNAL mode", the pointer n is set to 1 (step S100), and the following loop processing is repeated while incrementing n. That is, it is determined whether or not the sound generation ONF (n) is 1 (step S101). If this flag is 1 (valid), M of the sound generation channel (n) is determined.
The IDI data is transmitted to the sound source 3 (step S10
2). After sending to sound source 3 or when sound ONF (n) is 0
If it is (invalid), n is incremented (step S103). Then, it is determined whether or not n is equal to 17 (step S104). If n is equal to or smaller than 16, the process proceeds to step S101 to repeat the loop processing.

That is, in the case of the "INTERNAL mode", as shown in FIG. 22 (2), the mixer setting by the switch group 4 sets the tone generation channels (17) to (3).
2) and is effective for the sound channels (1) to (1).
6) is invalid. Therefore, MID
The event data of I IN is transmitted to the sound source 3 with the tone and volume in the event data. In this case, as shown in FIG. 22A, channels 1, 3, 5,.
Since five frames are displayed, only these ten channels are effective sounding channels.

In step S104 of FIG. 18, when n becomes 17, that is, when it becomes a channel for an internal event, the contents of the event data of the sounding channel (n) are determined (step S105). If the event data is note-on, the indicator (n
-16), the level of VEL (n) which is the velocity data of the event data is displayed (step S10).
6). Next, it is determined whether or not the sound generation ONF (n) is 1 (step S107). If this flag is 1 (valid), the pitch data and velocity data in the event data are transmitted to the sound source 3 and The output is sent to MIDI OUT (step S108). Then, n is incremented (step S109).

In step S105, if the event data is note-off, the indicator (n-1)
The level of 6) is turned off (step S110). next,
It is determined whether or not the sound ONF (n) is 1 (step S111). If this flag is 1 (valid),
Pitch data and velocity data (=
0) is transmitted to the sound source 3 and the MIDI OUT (step S112). Then, the process proceeds to step S109,
Increment n.

In step S105, if the event data is control data for mixer settings such as a program change or a control change, the data is invalidated and is not transmitted to the sound source 3 and the MIDI OUT. Increment n. The control data of the mixer settings of the sound channels 17 to 32 in the “INTERNAL mode” is shown in FIG.
As shown in (2), it has already been set by the switch group 4 and has been transmitted to the sound source 3 and MIDI OUT.
In steps S107 and S111, if the sound generation ONF (n) is 0 (invalid), the process immediately proceeds to step S109, where n is incremented.

After incrementing n, it is determined whether or not n has reached 33 (step S113). n is 32
If it is less than the above, the process proceeds to step S105 to repeat the sounding instruction processing up to the sounding channel (32). When n becomes 33 in step S113, the sound generation instruction process is terminated, and the process returns to the main routine of FIG.

In step S99 of FIG. 18, if the MS is not 1, that is, if the MS is 2 to 4, the message "EXTER
In the case of any of the “NAL mode”, “EXTERNAL SOLO mode”, and “EXTERNAL PLAY mode”, in the flow of FIG.
The pointer n is set to 1 (step S114), and n
The following loop processing is repeated while incrementing.

That is, the sound O of the sound channel (n)
It is determined whether or not NF (n) is 1 (step S11).
5) If this flag is 1 (valid), the contents of the event data of the sounding channel (n) are determined (step S116). If the event data is note-on, the pitch data and velocity data in the event data are sent to the sound source 3 and the MIDI OUT (step S117). Then, n is incremented (step S118). If the event data is note-off in step S116, pitch data and velocity data (= 0) in the event data are sent to the sound source 3 and the MIDI OUT (step S119).
Then, the flow shifts to step S118, where n is incremented.

In step S116, if the event data is control data for mixer settings such as a program change or a control change, these are invalidated and are not sent to the sound source 3 and the MIDI OUT, but immediately proceed to step S118. Increment n. “EXTERNAL mode”, “EXTERNAL”
The control data of the mixer settings of the sound channels 1 to 16 in the “SOLO mode” and the “EXTERNAL PLAY mode” are already set by the switch group 4 as shown in FIGS. It is sent to MIDI OUT. Step S11
In step 5, if the tone ONF (n) is 0 (invalid), the process immediately proceeds to step S118, where n is incremented. After incrementing n, n becomes 17
It is determined whether or not has become (step S120). If n is equal to or less than 16, the flow shifts to step S115 to repeat sound generation instruction processing up to channel 16.

If n becomes 17 in step S120, it is determined whether or not the MS is 4 in the flow of FIG. 20 (step S121). When the MS is 4, that is, in the “EXTERNAL PLAY mode”, the event data of the sounding channel (17) is determined (step S122). If the event data is note-on, the level of VEL (17), which is the velocity data of the event data, is displayed on the indicator (1) (step S123). Next, pronunciation ONF
It is determined whether or not (17) is 1 (step S12).
4) If this flag is 1 (valid), pitch data and velocity data in the event data are transmitted to the sound source 3 and the MIDI OUT channel (1) (step S125). Then, n is incremented (step S126).

If the event data is note-off in step S122, the level of the indicator (1) is turned off (step S127). Next, pronunciation O
It is determined whether or not NF (17) is 1 (step S1).
28) If this flag is 1 (valid), pitch data and velocity data (= 0) in the event data
Is transmitted to the sound source 3 and the MIDI OUT channel (1) (step S129). Then, step S12
The process proceeds to step 6, where n is incremented.

In step S122, if the event data is control data of a mixer setting such as a program change or a control change, the data is invalidated and is not sent to the sound source 3 and the MIDI OUT. Increment n. In steps S124 and S128,
If the sound ONF (n) is 0 (invalid), the process immediately proceeds to step S126, and n is incremented.

After n is incremented in step S126, that is, the tone generation channels (18) to (3)
Regarding 2), the level of VEL (n) of the internal event data is displayed on the indicator (n-16) (step S130). Then, it is determined whether or not the sound generation ONF (n) is 1 (step S131). This flag is 1
(Valid), the MI of the sound channel (n)
The DI data is transmitted to the sound source 3 and the channel (n-16) of the MIDI OUT (step S132). Then, it is determined whether or not n becomes 33 (step S1).
33). If n is 32 or less, step S12
Then, the process proceeds to step S133, where n is incremented.
Repeat the loop up to. In step S133,
When n becomes 33, the sounding instruction processing is terminated, and
It returns to the main routine of FIG.

That is, “EXTERNAL PLAY
In the case of the "mode", as shown in FIG. 25 (2), the control data of the mixer setting of the sound channel (5) set by the switch group 4 is copied for the sound channel (17) specified in advance. Therefore, the control data of the mixer setting of the internal event data is ignored. Therefore, only the pitch data and the velocity data among the internal event data are the sound source 3 and the MID.
The signal is transmitted to the channel (1) of I OUT and is generated by control data of mixer settings such as tone color data and volume data set by the switch group 4. On the other hand, for the sound channels (18) to (19) not specified,
All of the internal event data is sound source 3 and MIDI
The data is transmitted to the channels (2) to (16) of the UT, and is generated by control data of mixer settings such as tone color data and volume data by the internal event data itself.

If the MS is not 4 in step S121 of FIG. 20, that is, if the MS is 2 or 3, "EXTER
In the case of the “NAL mode” or the “EXTERNAL SOLO mode”, the process proceeds to step S130. That is, with respect to the sound channels (17) to (32), while incrementing n, steps S130 to S130 are performed.
133 loop processing is repeated, and the sound generation ONF (n) becomes 1
MIDI data is transmitted to the tone generator 3 and the MIDI OUT channel (n-16). Then, in step S133, n is 33
Is reached, the sounding instruction processing ends, and the process returns to the main routine of FIG.

That is, in the case of the “EXTERNAL mode” or the “EXTERNAL SOLO mode”,
All of the internal event data is sound source 3 and MIDI
The data is transmitted to the channels (1) to (16) of the UT, and is generated by control data of mixer settings such as tone color data and volume data by the internal event data itself.

FIG. 21 is a flowchart of the timer interrupt. In this process, when a timer interrupt occurs, the timer register T is incremented (step S13).
4) It is determined whether T has exceeded a predetermined time (step S135). If the predetermined time has not elapsed, this flow is terminated. If T exceeds the predetermined time, the correction flag is set to 0 (step S136), and the display of the channel indicator is erased (step S137).
Then, the timer interrupt is prohibited (step S1).
38).

That is, in the switch processing of the correction operation, after it is determined that the cursor switch 43 is turned on in step S27 or step S29 in FIG. 10, or in the step S40 in FIG.
If it is determined that No. 2 has been turned on and there is no next switch operation even after a predetermined time of the operation waiting limit has elapsed, the correction operation is invalidated.

As described above, in the present embodiment, the CPU 2 constituting the tone generation channel control device stores, for each channel, the event data which is the external tone data of 16 channels inputted from the outside. There is provided a storage means and a work RAM which constitutes second storage means for storing event data which is internal tone data of 16 channels generated internally. further,
The CPU 2 executes “INTERNAL mode”, “EXTE
Mode setting means for setting one performance mode among different performance modes of “RNAL mode”, “EXTERNAL SOLO mode”, and “EXTERNAL PLAY mode”, and a first mode in accordance with the performance mode set by the mode setting means. And the second storage means are designated, and the control data of the designated storage means is set, and the control data which is the control data of the storage means designated by the storage designation means is set. The control data setting means and the storage means designated by the storage designating means control the sound generation based on the control data set by the control data setting means irrespective of the control data included in the external tone data and the internal tone data. However, for storage means not specified by the storage Based on the control data contained in the data and the internal tone data constituting the sound control means for controlling the sound.

Therefore, according to the present embodiment, control data set for each channel in one of external tone data and internal tone data composed of a plurality of channels is included in the other tone data. Therefore, the control data of the musical tone data set by the player is not changed by the control data of the inputted musical tone data.

In the above-described embodiment, the control data as the control data has been described by taking the control data for the timbre and the volume as an example. However, other control data for determining the tone, such as after touch, modulation, Control data such as an envelope may be used.

In the above embodiment, “EXT
In the case of the “ERNAL PLAY mode”, the control data of the sounding channel for the external event is copied to one sounding channel, for example, the sounding channel (17) among the 16 sounding channels for the internal event. The control data may be copied to a plurality of tone generation channels.

[0061]

According to the present invention, control data set for each channel in one of external tone data and internal tone data composed of a plurality of channels is included in the other tone data. Therefore, the control data of the musical tone data set by the player is not changed by the control data of the inputted musical tone data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a MIDI musical instrument system according to an embodiment of the present invention.

FIG. 2 is a view for explaining the flow of MIDI data.

FIG. 3 is a diagram showing a configuration of MIDI data.

FIG. 4 is a plan view of an operation unit including the switch group and the LCD of FIG. 1;

FIG. 5 is a view showing an example of an indicator displayed in the area of FIG. 4;

FIG. 6 is a view showing an example of an indicator displayed in the area of FIG. 4;

FIG. 7 is a flowchart of a main routine of the CPU.

FIG. 8 is a flowchart of a switch process in step S2 of FIG. 7;

FIG. 9 is a flowchart of a switch process following FIG. 8;

FIG. 10 is a flowchart of a switch process following FIG. 9;

FIG. 11 is a flowchart of the switch processing following FIG. 10;

FIG. 12 is a flowchart of a switch process following FIG. 10;

FIG. 13 is a flowchart of the switch process following FIG. 10;

FIG. 14 is a flowchart of the switch process following FIG. 8;

FIG. 15 is a flowchart of the switch processing following FIG. 14;

FIG. 16 is a flowchart of an internal event process in step S3 of FIG. 7;

FIG. 17 shows MIDI IN in step S4 of FIG. 7;
10 is a flowchart of a process.

FIG. 18 is a flowchart of a sound generation instruction process in step S5 of FIG. 7;

FIG. 19 is a flowchart of a sound generation instruction process following FIG. 18;

FIG. 20 is a flowchart of a sound generation instruction process following FIG. 19;

FIG. 21 is a flowchart of a timer interrupt of the CPU.

FIG. 22 is a diagram showing a channel control method in the INTERNAL mode.

FIG. 23 is a diagram showing a channel control method in the EXTERNAL mode.

FIG. 24 is a diagram showing a channel control method in the EXTERNAL SOLO mode.

FIG. 25 is a diagram showing a channel control method in the EXTERNAL PLAY mode.

FIG. 26 is a diagram showing an example of an operation unit in the INTERNAL mode.

[Explanation of symbols]

 Reference Signs List 1 keyboard 2 CPU 3 sound source 4 switch group 5 LCD 6 FDD 7 MIDI terminal 8 waveform ROM

Claims (3)

[Claims] 1. A first storage means for storing external tone data of a plurality of channels input from the outside for each channel, and storing internal tone data of the same number of channels as the plurality of channels generated internally. A second storage means for setting one of the different performance modes; a mode setting means for setting one of the different performance modes; and a second storage means for storing the first and second storage means in accordance with the performance mode set by the mode setting means. A storage specifying unit that specifies one of them and sets control data of the specified storage unit; a control data setting unit that sets control data of the storage unit specified by the storage specifying unit; Regarding the designated storage means, the control data is independent of the control data included in the external tone data and the internal tone data. The sound generation is controlled based on the control data set by the setting means, and the sound generation is controlled based on the control data included in the external tone data and the internal tone data for the storage means not designated by the storage designation means. A sound channel control device, comprising: 2. The sound generation control means according to claim 1, wherein:
Channel selection means for selecting at least one set of channels corresponding to each channel of the storage means, and control data of the storage means not specified by the storage specification means for the channel selected by the channel selection means. 2. The sound channel control device according to claim 1, further comprising: data changing means for changing the control data of the storage means. 3. The sound channel control device according to claim 1, wherein the control data is timbre data for setting a timbre of a sound.