JP3438229B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] This invention relates to the production of metronome sounds.
The present invention relates to an electronic musical instrument having a function. [0002] 2. Description of the Related Art A method of information communication of musical sound information between electronic musical instruments
There is a MIDI communication system. This MIDI communication system
Has 16 communication channels,
MIDI events are sent and received independently via each channel.
Will be Some electronic musical instruments use MIDI communication.
In response to MIDI events given from outside,
With the function of forming, or M inside the electronic musical instrument
Send and receive IDI events and control music formation
There is something that I did. According to this kind of electronic musical instrument, each MI
It is possible to control tone formation independently for each DI channel.
For example, tones of different timbres are formed for each channel
For example, it is possible to perform a performance with high flexibility. On the other hand,
Equipped with a function to record performance data generated by playing
Used for practicing electronic musical instruments or playing
As an electronic musical instrument, to inform the performer of the correct tempo
There is an electronic musical instrument having a metronome sound function.
Conventionally, an electronic device with such a metronome sound generating function
The instrument should not have a dedicated sound source for the metronome sound.
Source that is not used to form other tones in the sound source
Use the sound channel to produce a metronome sound.
Had been done. [0003] The above-described MID
Electronic musical instruments using I-events to control musical tone formation
To play a metronome sound on a specific MIDI channel
By using it as a channel for control,
A sound generation function can be realized. But this
Metronome sound on a specific MIDI channel
Dedicated for control, the player is free to use
MIDI channels have been reduced to "15"
There was such a problem. In addition, an electronic device with an automatic performance function
For instruments, it is the same as the MIDI channel for the metronome sound.
MIDI event with the same channel number from another device
Then, parameters different from those for the metronome sound
Parameters are used to form metronome sounds
There was a problem that there is. The present invention is based on the situation described above.
And the use of MIDI channels.
Regardless of the situation, the metronome sound can be generated normally
And a metronome sound
Use all MIDI channels freely.
It is an object of the present invention to provide an electronic musical instrument capable of: [0004] SUMMARY OF THE INVENTION The present invention provides a method for transmitting a plurality of communications.
channelCorresponding toMusical soundConfigurationinformationAnd pronunciation instruction informationOutput
Music information output means,communicationchannelTo
RespondedMusical soundConfigurationTone formation that forms a tone based on information
Means,Every time a certain time elapses, The plurality of communication channels
Corresponding to a specific communication channelMetronome
Musical sound for mu sound formationConfigurationInformation andTheEmit metronome sound
Sound instructionsInformation to the tone generatorOutput,The outputAfter,
In order to form the metronome sound, the musical tone forming means is provided.
The set tone setting information before the metronome sound
Return to stateA metronome sound generating means.
It is a sign. [0005] According to the above arrangement, the musical sound forming means is provided with a
Only when a lonome sound is generated,
Tone information for lonome sound formation is supplied, and
A sound is produced. After that, the metronome sound formation
Tone information that was sent before the tone information was sent
Is again sent to the tone generating means,
The sound information is set before the metronome sound is generated
Return to [0006] An embodiment of the present invention will be described below with reference to the drawings.
I will tell. <A> Configuration of Example FIG. 1 shows the structure of an embodiment in which the present invention is applied to an automatic performance apparatus.
It is a block diagram showing composition. This automatic performance device is
Has ability. Also, as shown below,
In a performance device, operation events of performance operators, memory
All performance data read from the stage is MIDI events.
Is converted to an event and handled. (A) Generate a MIDI event in response to the operation of the performance operator
Event generation function (B) The performance data is read from the storage means, and the MIDI data is read out.
Regeneration function to output as vent (C) MIDI event generated by operation of performance operator
MIDI events read from the
Automatic performance function to perform more (D) MIDI event generated by operation of performance operator
MIDI events read from the
Recording function to write to the storage means as performance data (F) A machine that generates a metronome sound at a specified tempo
Noh Further, this automatic performance device has the above functions (a), (b) and
Regarding (d) and (d), it is possible to specify
You. (F) MIDI event generated by operation of performance operator
Channel number to assign the channel
Designation) (G) Channel of MIDI event reproduced from storage means
Of the playback channel number (hereinafter referred to as playback channel) (H) MIDI data recorded as performance data in storage means
Designation of vent channel number (hereinafter, recording channel) The components of the apparatus described below are
Used as a means to implement a function. Figure 1
1 is a keyboard as a performance operator. Also, 2
This is a key interface that is not provided for each key on the keyboard 1.
Key press / key release operation is detected and output as a key event
You. Reference numeral 3 denotes a CPU (Central Processing Unit) which has the above functions
Control of the entire apparatus including the control according to (a) to (d) is performed.
U. 4 is a ROM (Read Only Memory),
In addition to the various control programs executed by the CPU 3,
Necessary control information is stored. 5 is a RAM.
Storage of control data used for control performed by the CPU 3
Used as an area. Also, a specific note in the RAM 5
The storage area is used to store performance data for 16 tracks.
Performance data memory area and editing of performance data
Buffer track area for 16 tracks used when
Used as 6 is a MIDI interface
MIDI events played by this automatic performance device
To the external device, and supplied from the external device.
Receive the MIDI event. 7 is a tone designation switch
Various controls and indicators, including performance controls such as switches
Operation panel. 8 is the operation panel interface
Chair, and is made for each operator on the operation panel 7.
When an operation is detected and output as a panel event,
Each display on the operation panel 7 is
Perform display control. Reference numeral 9 denotes a tone synthesis for synthesizing a tone signal.
The synthesis circuit 10 is a tone output by the tone synthesis circuit 9.
This is a sound system that produces signals as musical sounds. B
Reference numeral 1 denotes a MIDI event bus.
I interface 6, tone synthesis circuit 9, and sound
Interconnecting the system 10 and between each of these elements
A communication path for sending and receiving MIDI events
Used. B2 is a data bus, and a key interface
Case 2, CPU3, ROM4, RAM5, operation panel
Interface 8 and tone synthesis circuit 9 interconnected
Data exchange between these elements.
Used as a communication path for communication. For example, key interface
Key press information output from the chair 2 is transmitted via the data bus B2.
CPU 3 reads the MIDI data.
After being converted into data, the MIDI event bus B1
It is output to the tone synthesis circuit 9. FIG. 2 is a plan view showing the operation panel 7.
In FIG. 2, reference numeral 21 denotes a currently set tone number.
It is an indicator for showing. 22 is a tone setting section,
Numeric keypad for inputting tone numbers and input sound
Increment key to increase / decrease color number, decrement
It is made of soft keys. 23 instructs metronome sound generation
Is a metronome switch for metronome
When the switch 23 is turned on, the LE above the switch 23 is turned on.
The D lamp 24 lights up. 31 is the currently set text.
It is a display for displaying the stamp. 32 and 33 are
This is an input to instruct the currently set tempo to increase or decrease.
A decrement key and a decrement key. 41 is
Record switch
Pressed to set the recording channel. 42 is automatic
Start switch 43 for instructing the start of performance
This is a stop switch for instructing to stop automatic performance.
You. BM₁~ BM₁₆Is the keyboard channel switch
Is used to set the keyboard channel described above.
You. Keyboard channel setting status is LED lamp LM
₁~ LM₁₆Is displayed. BQ₁~ BM₁₆Is each sea
This is a channel switch that controls the playback channel and
Used for setting the recording channel. Play channel
The setting status of the recording channel is LED lamp LQ₁~ L
Q₁₆Is displayed. 51 is a dial, a volume
To increase or decrease the set values of parameters such as
Used as a sapling. BC₁~ BC_FiveIs the mode
It is a switch, which is increased or decreased by operating the dial 51
Used as a control to specify parameters. Diamond
Which parameter is increased or decreased by
LED lamp CS₁~ CS_FiveDisplayed by 61 is
This is a display for displaying a tone color, volume, and the like. 62 is a
Increment key 63 is a decrement key.
As with the earphone 51, parameters such as volume and tone
Used as a control to increase or decrease the set value. 52
Is a dial priority switch. During playback, dial priority
When the switch 52 is on, the data is read from the RAM 5.
Parameters such as volume and tone depending on the performance data output
Data control is invalidated, and the parameter
Meter control is executed with priority. Also, dial priority
When the switch 52 is off, the data is read from the RAM 5.
Parameter control based on performance data output and dial
Both parameter control by the operation of 51 is performed. Next, using the storage area in the RAM 5,
The control registers and flags that are formed are described below.
You. Start flag START: This start flag STA
RT is set when the start switch 42 is pressed.
“1” is set. When START = "1", R
Performance data is read from the performance data memory area of AM5
And an automatic performance is performed. Record flag REC: This record flag REC is
Record switch 41 and start switch 42
When pressed, “1” is set, and as a result,
Recording of a MIDI event is performed. MIDI buffer: This MIDI buffer contains keyboard performances.
Playing, receiving MIDI signals from external devices,
Operation, performance data from the performance data memory area of the RAM 5
MIDI events caused by factors such as data reading
Stored. Channel status register ST (k) (k = 1 to 2)
2): This channel status register ST (k) (k
= 1 to 22) include 22 utterances in the tone synthesis circuit 9.
Information indicating the sounding state of the sound channel is stored. Sand
If the sound channel k is an empty channel, ST
(K) = “0”, and the sound channel k is in the note-on state
In the case of the state, ST (k) = “1”, and the sound channel k
Is in the note-off state, ST (k) is set to "2".
You. Metronome flag MM: This metronome flag MM
Is set to “1”, a metronome sound is emitted
You. Tempo register TEMPO: This tempo register TEM
Metronome every time the time corresponding to the content of PO elapses
The sound is pronounced. Metronome Count Register MCNT: This Metro
The gnome count register MCNT has a metronome sound.
Used as a timing means to control the sounding timing of the sound
Interrupt processing is executed at regular time intervals.
The contents are decremented each time. Keyboard channel register KBSW (k) (k = 1 to
LAST) and channel number register LAST: keyboard
Load channel register KBSW (k) (k = 1 to LAS
T) is a variable-length register for the keyboard channel.
The number is stored. The key is stored in the channel number register LAST.
Key stored in the board channel register KBSW
The number of board channels is stored. Mode register MODE: This mode register MODE
Contains information corresponding to the type of parameter to be set.
I will be absorbed. Tone number register TC / SEL: This tone number register
TC / SEL is input by the tone color setting unit 22.
The tone number is written. Event register EV: In this event register EV
Is the MIDI event retrieved from the MIDI buffer
Is written. MIDI channel register MCH: This MIDI channel
The register MCH contains the data extracted from the MIDI buffer.
Channel number of the MIDI event
You. Parameter setting register VALUE (i, j) (i = 1
-5, j = 1-16): Each parameter setting register VA
LUE (i, j) contains each tone generation channel of the tone synthesis circuit 9.
Each channel event that applies to channel j is stored. You
That is, VALUE (1, j) is suitable for the sound channel j.
The channel pressure event used is stored and VA
LUE (2, j) contains the program change event
Remember, VALUE (3, j) is for sound image position control
PAN event is stored and stored in VALUE (4, j).
The event for reverberation effect control is stored, and the VALU
E (5, j) contains an event for vibrato control.
Remembered. Velocity offset register VOFST (k) (k =
0 to 127): Velocity offset register VOFS
T (k) is applied at the time of forming a tone of tone number k.
Is stored. Relative value register REL: This relative value register REL
Indicates that the parameter is increased or decreased by operating the dial 51.
In this case, data representing the amount of change in the case of the change is stored. Note code register NC: This note code register
The NC that has been retrieved from the event register EV
Note code included in the event
You. Note velocity register NV: This note velocity
The register NV contains the information taken from the event register EV.
Note velocity included in the selected note-on event
Written. Sounding channel assignment register ACH: This sounding channel assignment
The register ACH includes a tone synthesis circuit 9 for generating a sound.
Is written. Note code register STNC (k) for each sounding channel
(K = 1 to 22): Note code register for each sounding channel
STNC (k) has a sound generated by a sound channel k.
The note code of the musical tone to be played is stored. MIDI channel register AMC (k) for each sounding channel
(K = 1 to 22): MIDI channel level for each sounding channel
Produced by the prosthesis channel k
Note-on event channel number
You. Record switch flag RECSW: This record switch
Switch RECSW is pressed when the record switch 41 is pressed.
During this period, “1” is held. Recording flag RSW (k) (k = 1 to 16): These recordings
The sound flag RSW (k) (k = 1 to 16) corresponds to each MIDI
Stores a value indicating whether channel k is a recording channel
This flag is used when RSW (k) = "1".
MIDI channel k is a recording channel. Reproduction flag PSW (k) (k = 1 to 16):
The raw flag PSW (k) (k = 1 to 16) corresponds to each MIDI
Stores a value indicating whether channel k is a playback channel
Flag when PSW (k) = "1".
MIDI channel k is a reproduction channel. Reception flag RC (k) (k = 1 to 16): reception of these
The flag RC (k) (k = 1 to 16) indicates that each MIDI channel
Receiving MIDI event from external device for channel k
Is a flag for storing a value indicating whether or not to perform. RC
If (k) = "1", the MI of the MIDI channel k
The reception of the DI event is permitted. Duration register DT (k) (k = 1 to 16):
These duration registers DT (k) (k = 1 to
16) shows each track in the performance data memory area during reproduction.
Writes duration data read from
I will. <B> Operation of the embodiment <Overview of Operation> FIG.
And the relationship between these routines.
is there. 4 to 23 are executed by the CPU 3.
Is a flowchart showing the specific processing contents of each routine.
FIG. 4 is a flowchart of a main routine, and FIGS.
FIG. 20 shows each of the routines executed along with the execution of the main routine.
The flow chart of the routine, FIGS.
Flowchart of each routine executed as interrupt processing
It is. Note that the specific processing contents of each of these routines
This will be described in detail in the next section <Detailed operation description>.
In the following, with reference to FIG.
Will be described. (1) Instrument mode (START = "0" R
EC = "0") In this musical instrument mode, the keyboard 1 and the operation panel 7
MID event generated by the operation of a performance operator such as an operator
And MIDI events received from external devices
The performance based on this is performed. Key generated by operation of keyboard 1
Event is converted to MIDI event by key processing routine
MIDI events that are converted and correspond to keyboard channels
And stored in the MIDI buffer. Also, operation
Panel events generated by the controls on panel 7 are
Increment processing routine, tone setting routine, etc.
MIDI by routine corresponding to each panel event
M converted to event and corresponding to keyboard channel
It is stored in the MIDI buffer as an IDI event.
MIDI events received from external devices are
Stored in MIDI buffer by MIDI processing routine
It is. MIDI events stored in the MIDI buffer
Are sequentially retrieved by a MIDI processing routine, and M
Note events in IDI events are note events
Channel event to the event processing routine
Is passed to the port processing routine. And note event
Parameters based on note events
Data is generated, and the channel event processing routine
Timbre, volume based on channel events
Parameters for setting etc. are generated, and each tone synthesis
It is supplied to the circuit 9. (2) Reproduction mode (START = "1",
REC = "0") Playback routine as interrupt processing every time a certain time elapses
Is executed, and the performance data memory area in the RAM 5 is
Performance data from the track corresponding to the playback channel
MIDI events that are read out sequentially and correspond to the playback channel
Is written to the MIDI buffer as an event. Also the key
Board performance, operation of operation panel 7, MIDI from external device
If a signal is received, the M
IDI events are also written to the MIDI buffer. So
Then, as in the case of the musical instrument mode, the MIDI buffer
MIDI events are sequentially read from the
9 is performed. (3) Recording / playback mode (START =
“1”, REC = “1”) Recording processing as the MIDI processing routine is executed
The routine is executed. This allows the MIDI buffer
Channel number of MIDI events stored in
The one that matches the sound channel is selected and the buffer in RAM 5 is selected.
Buffer track area corresponding to each recording channel
Written to the track. In the buffer track area
By pressing the stop switch, the performance data memo is displayed.
Each of the rear areas is transferred to a corresponding track. <Detailed Description of Operation> FIG.
When a power switch (not shown) is turned on, the CPU 3
Executes a main routine whose flow is shown in FIG. Ma
The process proceeds to step S401, and the control data in the RAM 5
Write the initial value to the storage area of. Next, step S40
2. The MIDI processing routine whose flow is shown in FIG.
Start. Then, in step S501, M
Determines whether there is a MIDI event in the IDI buffer.
Refuse. If the result of this determination is "YES", then step S
Execute the processing after 502 and return to the main routine,
In the case of "NO", the process is not performed and the main routine is executed.
Return. Next, when returning to the main routine, the process proceeds to step S403.
Proceeding to the external MIDI processing routine shown in FIG.
Start. Then, in step S601, M
MI from an external device via the IDI interface 6
It is determined whether a DI event has been received. This decision
If the result is "YES", the processing after step S602 is performed.
Execute and return to the main routine. If “NO”, nothing
Return to the main routine without performing any processing. Next, the main rule
When returning to the chin, the process proceeds to step S404, and the flow shown in FIG.
The key processing routine shown starts. And that step
In S701, the output state of the key interface 2 is changed.
Scan. Next, proceeding to step S702, the key of the keyboard 1 is
A key event indicating that an operation has been performed is sent to the key interface.
It is determined whether or not it has been detected through (2). This judgment result
Is “YES”, execute step S703 to execute
When the determination is "NO", the process returns to step S703.
Without returning to the main routine. Next, the main rule
When the process returns to step S405, the process proceeds to step S405, and
Execute the process. Although this sounding channel processing is not described in detail,
Of the tone generation channels 9 of the tone synthesis circuit 9,
The number k of the sound channel whose level has dropped below the predetermined value is detected.
The channel tone corresponding to the detected sound channel.
For the status register ST (k), an empty channel
Information "0" to be tasted is written. Next step
Proceeding to S406, the panel processing routine shown in the flowchart of FIG.
Start. Then, in step S801,
To scan the output state of the operation panel interface 8.
You. Next, the process proceeds to step S802, where the operation panel 7
A panel event indicating that a controller has been operated
Whether or not it has been detected through the panel interface 8
to decide. If this determination is "YES", step
Proceed to step S803 to respond to the detected panel event.
Execute the routine and return to the main routine,
In this case, the process returns to the main routine without going through step S803.
You. Then, thereafter, the CPU 3 performs steps S402 to S4.
Repeat step 06. [0015] The CPU 3 executes the process every time a predetermined period elapses.
The processing being executed at the time point is interrupted, and the processing shown in FIG.
Execute the load processing routine. First, step S2101
For interrupt control so that other interrupt requests are not accepted.
The information corresponding to the interrupt rejection is written in the flag. next
Proceeding to step S2102, the metronome flag MM is
It is determined whether or not the content is “1”. The result of this judgment
In the case of “YES”, the flow proceeds to step S2103 and FIG.
2 executes a metronome processing routine showing a flow,
Proceed to step S2104. On the other hand, step S2102
If the judgment result is "NO", step S2103 is executed.
Proceed to step S2104 without executing. Next, step S
Proceeding to 2104, it is determined whether or not an automatic performance is being performed. Soshi
If the automatic performance is being performed, the process proceeds to step S2105 and
23, the reproduction process routine shown in FIG.
Proceed to step S2106. On the other hand, if it is not during automatic performance,
Proceed to step S2106 without executing step S2105.
No. Next, when the flow advances to step S2106, the interrupt control flag is set.
Write the information corresponding to the interrupt permission to the lag. And C
PU3 has completed and interrupted this interrupt processing routine.
Resume processing. (1) Instrument mode The initialization process (step S401 of the main routine) is executed.
If the start flag START and the record flag are
"0" is written to both the REC and the automatic performance device.
Is the musical instrument mode. Below, this automatic performance
The operation of the apparatus in the musical instrument mode will be described. [0017] Keyboard channel setting In this automatic performance device, the key I detected from the keyboard 1
Panel generated by operation of vent and operation panel 7
Events are MIDI events corresponding to keyboard channels.
Converted to vents and handled. Performer plays the keyboard
, The keyboard channel designation switch BM₁
~ BM₁₆Switch corresponding to the desired channel number in
Key to set the keyboard channel. Keybo
When an operation is performed on the load channel designation switch,
A panel event corresponding to the operation is sent to the operation panel interface.
Detected by the face 8. As a result,
Panel processing routine via routine S406
When the process proceeds to step S802, the judgment result is “YE
S ”, and proceeds to step S803. And step
In step S803, the keyboard switch shown in FIG.
Execute the channel switch processing routine. First,
Proceed to step S901, and press the keyboard key that is currently pressed.
In addition to the channel designation switch, another keyboard channel designation switch
It is determined whether or not the switch is pressed. 1 player
Keyboard channel designation switches BM_kPress only
If yes, the determination result of step S901 is “NO”
And the process proceeds to step S902, where the keyboard channel
LED lamp LM for designation₁~ LM₁₆Turn off all
You. Next, proceeding to step S903, the channel number register
Write "1" to LAST. Then keyboard channel
Specify register KBSW (i) (i = 1 to NMAX)
The register specified by the channel number register LAST
Star KBSW (LAST) (in this case, KBSW
In response to (1)), the pressed keyboard channel designation switch
Itch BM_kWrite the number k of In this way,
Channel number k is set as the keyboard channel number.
It is. Next, the process proceeds to step S906, where the set key is set.
LED lamp BM corresponding to board channel number k_k
Lights up. Then, through the panel processing routine,
Return to in-routine. In this automatic performance apparatus, a plurality of
Set MIDI channel as keyboard channel
be able to. In this case, the performer is the first keyboard
After pressing the channel designation switch,
Before releasing your finger from the second keyboard channel designation switch.
Press the switch. In this case, the keyboard
By executing the switch processing routine,
Corresponding to the first keyboard channel designation switch
The number of the keyboard channel is registered in the KBSW register.
Written to (1). Then, Keyboard Channels
The second keyboard when entering the switch routine
Since the channel designation switch is pressed,
Step S901 results in "YES" and the
Proceeds to 904 and increments the channel number register LAST.
Ment. Then, the process proceeds to step S905, where the second
Register KBSW (L
AST) (in this case, KBSW (2)). So
And LED lamp BM_kCash register for (k = 1-16)
Compatible with the contents of star KBSW (1) and KBSW (2)
Then, each LED lamp is turned on (step S80).
6) Return to the main routine via the panel processing routine
You. Channels that should be set as keyboard channels
If there is a keyboard number, the performer
A new keyboard before releasing your finger from the channel designation switch
By pressing the channel designation switch,
Enter the desired channel number sequentially. As a result, the same
Is repeated, and the keyboard channel designation register
For all KBSW (k) (k = 1 to LAST)
Keyboard channel numbers are written
The LED lamp corresponding to the cell number lights up. Tone setting by tone setting section 22 The player can use the numeric keypad or the
Operate the increment / decrement keys to enter the tone number.
Pressing the panel processing routine through the main routine
Is activated, in step S803, FIG.
Executes the tone color setting switch processing routine whose flow is shown as 0
Is done. First, the process proceeds to step S1001, and the mode is displayed.
LED lamp CS for₁~ CS_FiveAt that time
LED lamp corresponding to the contents of the mode register MODE
Turn off the light. Next, the process proceeds to step S1002, where the information
Write "0" to the mode register MODE. Next,
Proceeding to step S1003, the
Writes the selected tone number to the tone number register TC / SEL
No. Next, the process proceeds to step S1004, and the sound is displayed on the display 21.
The contents of the color number register TC / SEL are displayed. next
Proceed to step S1005 to set
All keyboard channels, ie the keyboard
Channel register KBSW (k) (k = 1 to LAST)
For each MIDI channel set to
A program including the tone number set in the register TC / SEL
Create a ram change event (tone setting event)
To the MIDI buffer as internal MIDI events
Get in. As a result, step S402 of the main routine
When the processing proceeds to the MIDI processing routine via
Step S501 results in "YES", and the
Proceed to 502. Then, from the MIDI buffer, the internal MI
Extract DI event and write to event register EV
And the channel of the internal MIDI event
Write the file number to the MIDI channel register MCH.
Next, the process proceeds to step S503, where the event register EV
Whether the event stored in the event is a note event
You. In step S502, the event register EV
The written event is a program change event
In this case, the determination result of step S503 is “NO”.
To step S505. And the flow is shown in FIG.
Executes the indicated channel event processing routine. First, the flow advances to step S1101, and the event
Mode corresponding to the event set in the register EV
Write the number to the mode register MODE. Event
Program change to specify the tone number in the register EV
If an event has been set, “0” is
It is written to the register MODE. Next, step S110
Go to 2 and set the number in the mode register MODE
Are within a defined predetermined range (1 to 1 in the present embodiment).
It is determined whether the number is 5). In this case, the number
Since "0" is out of this defined range,
The result of the determination in S1102 is "NO", and the
Proceed to 104. Then, the CPU 3 sets the event register
MIDI event set in EV, that is,
The program created by executing the tone setting routine.
Lamb change event on MIDI event bus B1
The tone signal is sent to the tone synthesis circuit 9 via the CPU. Here, the tone synthesis circuit 9
Indicates the tone and effects for each MIDI channel.
Has a storage area for storing control parameters
You. Each program change event received from CPU3
Are allocated according to their MIDI channels.
And stored in the corresponding storage areas. And j
Step S1104 of the channel event processing routine ends.
When it is completed, it returns to the MIDI processing routine and
Proceeding to S506, the content of the record flag REC is "1"
It is determined whether or not. In the case of the musical instrument mode, step S50
The determination result in 6 is "NO" and the process returns to the main routine.
You. A plurality of keyboard channels are set
In this case, by executing the tone setting routine,
Program change corresponding to each keyboard channel
The vent is written to the MIDI buffer (tone setting processing
Step S1005 of the management routine). MIDI buffer
Each program change event written to
Then, every time the MIDI processing routine is executed, an event
It is taken into the register EV (step S502), and the channel
Music event processing routine is executed,
The data is sent to the synthesis circuit 9 (step S1104). this
So that for all keyboard channels, the sound
The tone color input by the color setting unit 22 is set. Various parameter setting by dial 51 In this automatic performance device, the dial 51 is operated.
By doing so, the buttons set for each MIDI channel
Control parameters such as volume, tone number, and effects
The value can be increased or decreased. The following describes this operation.
Will be explained. A. Volume setting When performing volume setting by operating the dial 51,
The performer first sets the volume switch BC_TwoON state
To As a result, the CPU 3 executes the processing via the main routine.
When the process proceeds to the panel processing routine,
3. Volume switch showing the flow in FIG.
Execute the processing routine. First, in step S1201
LED lamp CS for mode display₁~ CS_FiveOut of
Corresponds to the contents of the mode register MODE at that time
The turned off LED lamp is turned off. Next, step S12
02, information corresponding to the volume setting mode
Write "1" to the mode register MODE. Next,
Proceeding to step S1203, "0" is set in the relative value register REL.
Write. Next, the process proceeds to step S1204, where the channel
It is determined whether or not the content of the number register LAST is "1".
You. If the result of this determination is "YES",
If the number of board channels is 1, step S12
Go to 05. And the parameter settings at that time
Register VALUE (i, j) (i = 1 to 5, j = 1 to
16), the mode number i corresponds to “1”, and
Channel number j is the first keyboard channel KBS
Register VALUE (1, KBSW corresponding to W (1)
The contents of (1)) are displayed on the display 61. And pa
The process returns to the main routine via the tunnel processing routine. one
On the other hand, if the determination result of step S1204 is “NO”,
In other words, if multiple keyboard channels are set,
If not, the process proceeds to step S1206, where the relative value register RE
The content “0” of L is displayed on the display 61 and the panel processing
Return to the main routine via the routine. Next, the player should set the desired volume.
The dial 51 is operated. Here, the performer dials
When turning 51 in the direction to increase the volume,
In FIG. 13 in step S803 of the
The shown increment processing routine is executed. First,
Proceeding to step S1301, the contents of the mode register MODE
It is determined whether the content is “0”. In this case, the mode register
Data corresponding to the volume setting mode
Since “1” is set, the determination in step S1301 is made.
The determination result is “NO” and the process proceeds to step S1302.
The content of the relative value register REL is incremented. Next
In step S1303, the initial value is stored in the variable register i.
Set “1”. Next, the process proceeds to step S1304,
Parameter setting register VALUE at the time of
Mode of (i, j) (i = 1 to 5, j = 1 to 16)
The number i is stored in the mode register MODE (in this case, MODE
= “1”) and the channel number j is the keyboard
Channel KBSW (i) (in this case, KBSW
Register VALUE (1, KBSW) corresponding to (1))
(1)) is incremented. Where the increment
Register value (1, KBSW)
(1)) The volume value set in
If the upper limit is reached, the volume value
No action is taken. Next, proceeding to step S1305,
Parameter setting register VALUE (1, KBSW
Using the volume value set in (1)), the first
The finger is specified by the keyboard channel register KBSW (1).
The channel pressure event of the defined MIDI channel
(Volume control event), and the internal MIDI
Write to the MIDI buffer as an event. Next,
Proceeding to step S1306, the variable register i is incremented.
To Next, the process proceeds to step S1307, where the variable
The content of data i (in this case, i = “2”) is the channel number register
It is determined whether or not it is larger than the contents of the LAST. this
If the determination is "YES", step S1308 is performed.
Proceed to. On the other hand, the determination result of step S1307 is "N
O ", that is, the content of the variable register i is
Keyboard channel stored in the number register LAST
If not, the process returns to step S1304, and the
Parameters for the second keyboard channel
Data setting register VALUE (1, KBSW (2))
The stored volume value is incremented (step S
1304), based on the new volume value,
Channel pressure for keyboard channels
Create an event and keep it as an internal MIDI event
(Step S1305). Then, the variable register i is
Increment (step S1306), i> LAST
It is determined whether or not this is the case (step S1307). in this way
Until the determination result of step S1307 becomes "YES"
Steps S1304 to S1307 are repeated to set
Volume values for all keyboard channels
Channels updated and based on new volume values
Create pressure event and write to MIDI buffer
Put in. The result of the determination in step S1307 is "YES".
When the process proceeds to step S1308, the channel number register
If the number of keyboard channels stored in LAST is one,
It is determined whether or not. The result of this determination is "YES"
In this case, the process proceeds to step S1309, and the mode register MO
The mode specified by the DE (in this case, volume
Setting mode) and the first keyboard key
Parameter setting registry corresponding to channel KBSW (1)
Display the contents of VALUE (MODE, KBSW (1))
Display on the display 61, and through the panel processing routine,
Return to routine. On the other hand, the result of determination in step S1310 is
If the result is "NO", that is,
If the number is “2” or more, the value in the relative value register REL is used.
The contents are displayed on the display unit 61, and through the panel processing routine.
To return to the main routine. In this case, it is displayed on the display 61.
The contents of the relative value register REL are
Relative volume values for all keyboard channels
The change (in this case, the increase) is shown. On the other hand, the dial 51 is in the direction of decreasing the volume.
Is rotated through the panel processing routine.
A reset processing routine is executed. In addition, this decre
The flowchart of the processing routine
Omitted. When the decrement processing routine is executed
Indicates that the relative value register REL is decremented (step
(Equivalent to step S1304), all set keyboard keys
Decrement volume value for channel (step
S1304), a channel pressure event
(Corresponding to step S1305). And on
As in the case of the increment processing routine described above, the volume
Absolute value of the volume value (corresponding to step S1309) or
Volume values for all keyboard channels
The decrease REL is displayed (step S1310 phase).
This). As described above, the dial 51 is rotated.
This creates a channel pressure event,
Write to the MIDI buffer as a partial MIDI event
It is. As a result, step S402 of the main routine is
Step to the MIDI processing routine via
The result of the determination in S501 is “YES”, and the step S5
Go to 02. Then, from the MIDI buffer, the internal MID
I event (in this case, increment processing routine
Or the channel created in the decrementing routine.
Event pressure)
MIDI event written and taken out to the Star EV
Channel number of MIDI channel register MCH
Write. Next, the process proceeds to step S503, where the event
Whether the event stored in the register EV is a note event
Judge. In this case, write to the event register EV
A channel pressure event is
Therefore, the determination result of step S503 is “N
O ", and the process proceeds to step S505. And channel
Execute the event processing routine. First, the process proceeds to step S1101, and the event
Mode corresponding to the event set in the register EV
Number, that is, the mode corresponding to the volume setting mode.
Write the mode number "1" to the mode register MODE. Next
In step S1102, the mode register MODE
Is set to the defined predetermined range "1"
It is determined whether or not the number is within the range of “5”. This place
If the mode number “1” is within this defined range,
The result of the determination in step S1102 is "YES".
Then, the process proceeds to step S1103. And externally supplied
Source other than dial operation, such as MIDI events
Of the MIDI events
Channel events of the type specified by the star MODE
(MODE is "1", channel pressure
Event) to take out and set a new channel event
To register VALUE (MODE, MCH)
Write. Next, the process proceeds to step S1104, where the event
The channel pressure event held in the register EV
To the tone synthesis circuit 9 via the MIDI event bus B1
send. As a result, the supplied channel pressure event
The corresponding pronunciation channel in the tone synthesis circuit 9 according to the
Is set. And channel event processing
When step S1104 of the routine ends, the MIDI
Returning to the processing routine, the process proceeds to step S206,
It is determined whether or not the content of the code flag REC is "1".
If the determination is "NO", the process returns to the main routine. Multiple keyboard channels are set
If the dial is turned, all keys
For board channel KBSW (i) (i = 1 to LAST)
About register VALUE (MODE, KBSW
The contents of (i) are incremented (increment processing)
Step S1304 in the routine) or decrement
And register VALUE (MODE, KBSW
(I) The channel event (MODE =
If "1", the channel pressure event is MID
Written to the I buffer (increment processing routine
Step S1304). Write to MIDI buffer
Channel press for each keyboard channel
The Sha event is then executed by the MIDI processing routine.
Each time the event register EV is loaded (step
(Step S502), the channel event processing routine is executed.
Is transmitted to the tone synthesis circuit 9 (step
S1104). In this way, the tone synthesis circuit 9
Pronunciation channels for all keyboard channels
The volume setting according to the dial operation.
It is. B. Other parameter settings by dial operation
Set The player uses the switch BC_Two~ BC_FourDesired parameter
Dial switch after pressing the switch corresponding to the
The volume of the tone number, effects, etc.
Outside parameters can be set. in this case
Performs the same processing as the volume setting described above.
It is. That is, when the player sets the switch BC_TwoWhen is pressed
In the panel processing routine S803,
Corresponding data "2" is written to mode register MODE.
Switch BC_ThreePress to set sound image position
Is written to the mode register MODE.
Switch BC_FourIf you press
Data “4” corresponding to the depth setting is written, and
Switch BC_FivePress to set the vibrato depth
The corresponding data "5" is written. Then diamond
When the keyboard operation is performed, all the keyboard channels KB
SW (i) (i = 1 to LAST)
Register VAL of the type specified by the star MODE
The contents of UE (MODE, KBSW (i)) are incremented
(Step S130 of the increment processing routine)
4) Or decremented, register VALUE
(MODE, KBSW (i))
Vent is written to the MIDI buffer (increment
Step S1304 of the event processing routine). And M
When the IDI processing routine is executed, the MIDI
The channel event written to the buffer
Route 9 (step S1104), the tone synthesis circuit
Parameter setting according to dial operation for 9
It is. C. Input tone number by tone setting section 22
Dial operation is performed after In this case, MODE = “0” and the increment processing is performed.
Processing routine is started, and the determination result of step S1301 is entered.
Becomes “Yes”, and proceeds to step S1321. Soshi
Velocity offset corresponding to tone number TC / SEL
Bit register VOST (TC / SEL) is 12
It is determined whether it is smaller than 7. The result of this determination is "Ye
s ", the velocity offset register VOFST
(TC · SEL) is incremented (step S13)
22), and proceed to step S1323. Step S
If the determination result of 1321 is “No”, step S13
The process proceeds to step S1323 without executing step S22. Next
In step S1323, the velocity offset
Display contents of register VOST (TC / SEL)
1 and returns to the main routine. Thus, MOD
If E = “0”, set by dial operation
The velocity offset value corresponding to the middle tone number is updated.
Be renewed. [0031] Tempo setting If the performer uses the increment key 32 for tempo setting
Presses the decrement key 33, these keys
A panel event indicating that an operation has been performed
It is detected via the interface 8. As a result, the CPU
3 in step S802 of the panel processing routine
Proceed to a tempo setting routine whose flow is shown in FIG.
Operation of the increment key 32 or the decrement key 33
Tempo data in tempo register TEMPO according to work
(Step S1401), and the tempo register T
Send the contents of EMPO to the operation panel interface 8
Is displayed on the display 31 (step S1402). So
To exit the tempo setting routine and return to the panel processing routine.
Return to the main routine via the After that, a new tempo
Based on the tempo data written to the register TEMPO
Control of the metronome sound generation timing
You. Operation in Keyboard Performance When the player presses any key on the keyboard 1, the key is pressed.
Key press event corresponding to the key
Is detected through. As a result, the main routine
When the process proceeds to the key processing routine through step S404,
When the determination result of step S702 is “YES”,
The process proceeds to step S703. The key corresponding to the key press event
Event on all currently set events.
Keyboard channels KBSW (i) (i = 1 to LA)
ST), and make each one an internal MIDI event.
To write to the MIDI buffer. As a result, the MIDI processing
When the processing routine is started, the judgment in step S501 is made.
The disconnection result becomes “YES” and the process proceeds to step S502.
And the internal MIDI event in the MIDI buffer.
Take out one of them and write it to the event register EV
Along with the channel number of the MIDI event
Write to MIDI channel register MCH. Then
Proceeding to step S503, the data is stored in the event register EV.
It is determined whether the received event is a note event. this
In operation, an event is a note event,
Proceeding to step S504, the note event processing routine
Execute FIG. 15 shows a flowchart of the note event processing routine.
Indicates low. First, the process proceeds to step S1501, and the event
In the note-on event stored in the register EV
Write note code to note code register NC
No. Next, the process proceeds to step S1502, where the note-on event is performed.
Note velocity at the note velocity
Write to the star NV. Next, the process proceeds to step S1503,
Note on is stored in event register EV
Determine whether the event is an event. In this case, step S15
03 is "YES", and the result of step S150 is "YES".
4 and the channel status register ST (k) (k
= 1 to 28), there is a register whose content is "0".
Or not, that is, all tone generation channels of the tone synthesis circuit 9
Whether there is an empty channel that is not sounding
to decide. If this determination is "YES", step
Proceed to S1505 and select one of the available channels.
Write the channel number to the tone generation assignment register ACH. Next
In step S1506, the sound generation assignment register AC
Channel status register ST corresponding to the contents of H
Indicates to (ACH) that the channel is being pressed.
Write information "1". Next, proceed to step S1507.
The sound generation channel specified by the sound generation assignment register ACH
The note code register for each channel STNC (ACH)
Write the contents of the port code register NC. Next,
Proceeding to step S1508, the sound generation assignment channel register AC
MIDI channel for each sound channel specified by H
MIDI channel register in number register AMC (ACH)
Write the contents of the star MCH. Next, step S1509
The CPU 3 proceeds to the above-described AC in the tone synthesis circuit 9.
MIDI channel level for the sound channel corresponding to H
MIDI channel number stored in the
Note code stored in the
Note velocity stored in velocity register NV
And a note-on signal instructing sounding. this
As a result, the tone generation channel ACH of the tone synthesis circuit 9 makes C
Note code and note velocity given from PU3
A musical tone corresponding to the tee is formed and pronounced. Where
As described above, the sound synthesis circuit 9 is provided for each MIDI channel.
To store control parameters such as tone and volume
Of these control parameters from CPU3.
Using the one corresponding to the specified MIDI channel number.
Controls sound formation. Then, step S1509 ends.
And ends the note event processing routine and
Return to the logical routine. On the other hand, if no free channels were found,
When the result of the determination in step S1504 is "NO"
Without executing steps S1505 to S1509
Returning to the DI processing routine, in step S506
To determine whether the content of the record flag REC is "1"
Return to the main routine if the determination result is "NO".
You. Next, the player has pressed down on the keyboard 1.
When a key is released, a key release event corresponding to the key is released to the key interface.
Detected through the face 2. As a result,
From step S404 of the routine to the key processing routine
At this time, the determination result of step S702 is “YES”.
Therefore, as in the case of the above-mentioned key pressing event, step S7
03, step S402 of the May routine, MIDI processing
Perform steps S501, S502, and S503 of the routine.
And proceeds to step S504, where the note event processing
Execute the routine. Then, the event register EV
The note code of the received note-off event
(Step S1501).
No note velocity at the note-off event
Write to the velocity register NV (step S15
02). In the case of a note-off event, step S
The result of the determination in 1503 is “NO” and the step S15
Proceeding to step 10, note code register ST for each sounding channel
NC (k) (k = 1 to 28) and channel status
The contents of the registers ST (k) (k = 1 to 28) are sequentially stored.
Next, it is determined that STNC (k) = NC, and
(K) = whether there is a number k that satisfies (1), that is,
The tone corresponding to the note code NC is being generated.
Whether there is a note-on sound channel
Judge. If the result of this determination is “YES”,
Proceed to step S1511 and find in step S1510.
The generated sound channel number k is set in the sound generation register A
Write to CH. Next, the process proceeds to step S1512,
Channel status specified by the sound allocation register ACH
Key is released while the status register ST (ACH) is sounding
Information "2" indicating that the operation has been performed is written. Then
Proceeding to step S1513, sound generation in the tone synthesis circuit 9 is performed.
To the sound channel specified by the assignment register ACH
On the other hand, note-off information NOFF is sent. This allows
A mute process is performed on the sound channel ACH. Soshi
When step S1513 ends, a note event
The processing routine ends and returns to the MIDI processing routine.
On the other hand, the determination result of step S1510 is “NO”.
Do not execute steps S1511 to S1513
Returns to the MIDI processing routine. And the key press mentioned above
Step S506 or the same as in the case where
Then, the process returns to the main routine via step S507. Processing for an external MIDI event M from an external device via the MIDI interface 6
When an IDI event is received, the main routine is stopped.
Proceeded to the external MIDI processing routine in step S403.
At this time, the result of the determination in step S601 is “YES”.
Then, the process proceeds to step S602. And the received MID
Set the channel number of the I event to the channel number register MC
Write to H. Next, proceeding to step S603, the channel
Reception channel flag RC (MC
H) is “1” or not, that is,
MIDI events must be processed by this automatic performance device.
It is determined whether it is a kimono or not. The result of this determination is “YE
S ”, the process proceeds to step S604, and the received M
Write IDI event to MIDI buffer
Return to routine. On the other hand, the determination result of step S603 is
If “NO”, do not execute step S604
Return to the main routine. Written to the MIDI buffer
The received MIDI event is the above-mentioned keyboard performance or
Same as the MIDI event generated by operating the operation panel
When the MIDI processing routine is executed, the MIDI
Read from the buffer and used to control the tone synthesis circuit 9.
It is. Generation of metronome sound The player turns on the metronome sound indication switch 23.
Then, the on event is sent to the operation panel interface
8 is detected. As a result, the panel processing routine
In step S803, the metronome flag MM
Information "1" indicating the metronome sound is written to
And the LED lamp 24 is turned on. This result
As a result, when the interrupt processing routine is executed
The result of determination in S2102 is "YES" and
Proceeding to 2103, the metronome processing shown in FIG.
The logical routine is executed. First, step S2
Go to 201, count register MCN for metronome
The contents of T are decremented by "1". Next step
Proceeding to S2202, the metronome sound count register
Whether the content of MCNT is “0”,
Judge whether or not it is time to generate a tronome sound
You. If the result of this determination is “Yes”, step S22
03, returning to the interrupt processing routine if "No"
You. Next, proceeding to step S2203, the metronome sound
Program change event for channel number "1"
Music synthesis circuit 9 as a MIDI event corresponding to "6"
Supply to Next, the process proceeds to step S2204, where the channel
Note-on information NON corresponding to the number "16"
It is sent to the circuit 9. As a result, in the tone synthesis circuit 9,
Metro as a tone corresponding to MIDI channel "16"
A gnome sound is emitted. Next, proceed to step S2205.
Of the parameter setting register VALUE (2, 16)
Contents, ie, tone setting of MIDI channel "16"
The tone number that was originally set to restore
It is sent to the tone synthesis circuit 9 as a music change event. this
As a result, the MID in the tone synthesis circuit 9
Do not dedicate I-channel “16” to the metronome,
Like other channels, as a sound channel for other tones and musical sounds
Can be used. Next, the process proceeds to step S2206,
Tempo register in metronome count register MCNT
Write the contents of the start TEMPO. And the interrupt processing
Return to the routine. The above operation is repeated every certain time.
The metronome count register is not "1"
Is decremented by one. And the metronome processing loop
Number of times the chin corresponds to the contents of the tempo register TEMPO
Is executed, and every time MCNT = "0", step S is executed.
Steps 2203 to S2206 are executed, and a metronome sound is emitted.
Be sounded. (2) Reproduction mode Setting the playback channel MIDI events from the performance data memory area in the RAM 5
When performing the automatic performance by playing the
Set the channel. Record switch 41 is pressed
Record switch flag RECSW
Is "0". In this state, L
Of the ED lamps LQi (i = 1 to 16), the reproduction channel
MIDI channel number set as default
The turned on LED lamp lights up. The player is an LED lamp
Depending on the lighting state of LQi (i = 1 to 16),
Check whether the I channel is a reproduction channel. MIDI channel that is not a playback channel
When setting a new channel as a playback channel,
Is a sequencer channel switch BMi (i = 1 to 1)
6) Corresponds to the number of the channel you want to be the playback channel
Press the switch. This sequencer channel switch
Switch on event triggers the operation panel interface 8.
If detected via the CPU 3, the CPU 3 executes a panel processing routine.
In step S803 of FIG.
Execute the channel switch processing routine. Ma
First, in step S1601, the sequence pressed
The number i of the subchannel switch BMi is stored in the variable register N.
Write. Next, the process proceeds to step S1602, where the record
Whether the content of the switch flag RECSW is “0”
Judge. The player presses the record switch 41
If not, RECSW = "0" (the reason is
(Described later), and the determination result of step S1602 is “YES”.
It proceeds to step S1603. And MIDI Chi
The content of the reproduction flag RSW (N) corresponding to channel N is
It is determined whether it is "1". MIDI channel N
RSW if not set as playback channel
(N) = “0”, and the determination in step S1603
The disconnection result is “NO” and the process proceeds to step S1604.
Then, "1" is written to the record flag RSW (N).
No. Next, the process proceeds to step S1605, where the LED lamp L
Corresponds to MIDI channel N in Qi (i = 1 to 16)
LED lamp LQ_NTo the lighting state, and
Return to the main routine via the routine. MIDI channel set as a playback channel
If you want to remove a channel from the playback channel, the performer
Sequencer channel switch corresponding to MIDI channel
Switch BMi is pressed. Here, MIDI channel i is
If set as a playback channel, PSW
(I) = “1”. In this case,
The sequence switch is pressed by pressing the channel switch BMi.
When the switch processing routine is executed, step S1 is executed.
The determination result of Step 603 is “NO”, and Step S160
Go to 7. Then, the reproduction flag PSW (N) (= PSW)
Write (0) to (i)). Next, step S160
8 and among the LED lamps LQi (i = 1 to 16)
LED lamp L corresponding to MIDI channel N (= i)
Q_NIs turned on, and the main
Return to routine. Automatic performance After setting the playback channel as described above,
The player presses the start switch 42. This start
The ON event of the switch 42 is
When detected through the chair 8, the CPU 3
FIG. 17 shows a flow chart of the routine in step S803.
The shown start switch processing routine is executed. First,
In step S1701, the record switch flag
It is determined whether or not the content of the RECSW is “1”. Performance
If the player has not pressed the record switch 41
The determination result of step S1701 is “NO” and the
Proceed to step S1702. Then, the start flag STA
It is determined whether or not the content of RT is “0”. This judgment
If the result is "YES", the flow advances to step S1703.
Then, "1" is written to the start flag START. Next
In step S1704, the initial setting process for reproduction is performed.
Work. By this initial setting processing, the performance in the RAM 5
Each track corresponding to the playback channel in the data memory area
The first duration data is read from the
Duration register DT corresponding to raw channel i
(I) is written. Also, in this initial setting process,
Setting of various other pointers necessary for playback
It is. Then, through the panel processing routine, the main routine
Return to When the start switch 42 is pressed
If START = “1” at the point,
That is, the start switch 42 is pressed during the automatic performance.
In this case, step S of the start switch processing routine
When proceeding to 1702, the judgment result is "NO",
Do not execute steps S1703 and S1704.
Return to the main routine via the panel processing routine
You. When the start switch 42 is pressed, ST
When ART is set to "1", the interrupt processing routine is thereafter executed.
If executed, the determination result of step S2104 becomes “Y
ES ”in FIG. 23 in step S2105.
A reproduction processing routine indicating low is executed. First,
Proceed to step S2301 to initialize “1” to the variable register i.
Set. Next, the process proceeds to step S2302, where the MIDI
The content of the reproduction flag PSW (i) corresponding to channel i is
Whether or not the MIDI channel i is “1”;
It is determined whether the channel is a reproduction channel. The result of this judgment
If “YES”, the process proceeds to step S2303,
If “NO”, the process proceeds to step S2309. Next, in step S2303, the MID
Duration register DT corresponding to I channel i
(I) is decremented. Next, in step S2304
Advances, and the content of the duration register DT (i) becomes
It is determined whether or not it has become “0” or less. The result of this judgment
If “NO”, the process proceeds to step S2309. This
On the other hand, the determination result of step S2304 is "YES".
If it becomes, the process proceeds to step S2305,
The event corresponding to channel i is stored in RAM 54
From the performance data memory area. Also,
Of event of MIDI channel i to be read to
Data from the performance data memory area
Then, the data is written to the duration register DT (i). Next, the flow advances to step S2306 to dial
Judge whether the content of the priority flag PRSW is "1"
I do. Here, the dial priority flag PRSW is
When the priority switch 52 is turned on, “1” is output.
When written and turned off, "0" is written
It is. When PRSW = "1", LED5
Of the 3 and 54, only the LED 53 is turned on,
When PRSW = "0", only LED 54 is lit
State. Operation of these dial priority switches 52
The processing in response to the operation is performed in step S of the panel processing routine.
This is executed at 803. The contents of the dial priority flag PRSW are
If “1”, the result of the determination in step S2306 is “Y
ES ”, and proceeds to step S2307. And the performance
MIDI event read from performance data memory area
Is a note-on or note-off event
It is determined whether or not. When the result of this determination is "YES"
Goes to step S2308, where the performance data memory area
The MIDI event read from the internal MIDI event
To the MIDI buffer. And step
Proceed to step S2309. On the other hand, the determination in step S2307
If the result is "NO", that is,
MIDI event read from the rear area
If not, step S2308 should not be executed.
Then, the process proceeds to step S2309. Thus, the dial
If the content of the previous flag PRSW is "1", the performance
MIDI events played from the data memory area
Only note events are written to the MIDI buffer
Channel pressure event, program change
Channel events such as events are written to the MIDI buffer.
I can't get in. On the other hand, in playback mode, dial operation
Once the operation has been performed, the details of the instrument mode
As described above, the increment processing routine or data
The increment processing routine is executed and the channel event
Is generated and written to the MIDI buffer. Also,
When a note event is generated by playing the keyboard, or
When a MIDI event is supplied from an external device,
Those MIDI events are written to the MIDI buffer
I will. MIDI written to MIDI buffer
The event is then executed by the MIDI processing routine.
Is taken into the event register EV.
(Step S502). And the event register EV
MIDI events captured in the
Note event processing routine is executed
In response to a note event taken into the vent register EV
The corresponding parameters are sent to the tone synthesis circuit 9 (step
Step S1509 or S1513). Also events
The MIDI event captured in the register EV
Channel event processing routine if the event is
Is executed and the channel taken into the event register EV is executed.
The parameter corresponding to the channel event is a tone synthesis circuit 9.
(Step S1104). In this way PR
If SW = "1", the performance data memory area
Only the note event among the playback events is a tone synthesis circuit
9 is used for control. Then, the voice synthesis circuit 9
Time control, tone control, etc. are performed by dial operation etc.
Channel data played from the performance data memory area.
Vents are ignored. On the other hand, the contents of the dial priority flag PRSW
Is “0”, the result of the determination in step S2306 is
“NO” will proceed to step S2308, where the performance data
The MIDI event read from the data memory area
Write to DI buffer. Then, step S2309
Proceed to. The event written to the MIDI buffer is
After that, the MIDI processing routine is executed.
Is taken into the event register EV (step S
502). And a note event processing routine or
Is caused by the execution of the channel event processing routine.
Responds to the event captured in the event register EV.
The corresponding parameters are sent to the tone synthesis circuit 9. this
Thus, when PRSW = "0", the performance data memory
All MIDI events that are played from the area
Is used for controlling the tone synthesis circuit 9. Next, in step S2309, the variable
The register i is incremented. Next, step S231
The process proceeds to 0, and it is determined whether or not i> 16. This size
If the disconnection result is “NO”, the process returns to step S2032,
Perform the same processing as above for the new MIDI channel i.
U. Then, the determination result of step S2310 is “YE
If "S" is reached, the process proceeds to step S2311. And
Play MIDI events for all playback channels
It is determined whether or not has been completed. If the result of this determination is "NO"
In the case of, the reproduction processing routine ends, and the interruption processing routine
Return to After the interrupt processing routine is completed,
Restart the process that was interrupted by the process. Since then
The interrupt processing routine is executed every time the time elapses, and
Is repeated. From the performance data memory area in the RAM 5
All MIDI events of the playback channel are read
And the playback processing routine is executed via the interrupt processing routine
Is performed, the determination result of step S2311 is “YES”.
Becomes As a result, the process proceeds to step S2312 and the star
Write “0” to the start flag START
Return to Chin. Thereafter, if the interrupt processing routine is executed
However, since START = "0", the reproduction processing routine
Is not executed. Thus, the automatic performance ends. Performing during or after automatic performance
When the user presses the stop switch 43, the
Event is detected. As a result, the CPU 3
The stop switch processing routine shown in FIG.
Execute the routine. First, proceed to step S2001,
Whether the content of the start flag START is "1"
Judge. If the result of this determination is “Yes”,
If an automatic performance is currently being performed, step S2
002, and write “0” to the start flag START.
Get in. Next, proceeding to step S2003, the tone synthesis circuit
The currently sounding channel in 9
The channel status register ST corresponding to each
All pronunciation channels for which the content of (i) is "1"
The note-off information NOFF is supplied to the i. this
As a result, all the sounds being produced in the tone synthesis circuit 9 are generated.
A tone silencing process is performed. Then, step S200
Proceed to 4. On the other hand, the stop switch 4
If No. 3 is pressed, the determination result of step S2001
Becomes “No”, and steps S2002 and S200
Then, the process proceeds to Step S2004 without executing Step 3. next
In step S2004, the record flag REC is set.
It is determined whether or not the content is “1”. REC = "0"
In this case, the result of this determination is “No”, and the
Stops without executing steps 2004 to S2007
The switch processing routine ends. (3) Playback recording mode In the playback / recording mode, the performance data
Playback processing of MIDI events in the memory area and keyboard performance
MIDI sound caused by playing or operating the operation panel
Recording of events or foreign MIDI events in RAM5
The sound processing is performed in parallel. In this playback recording mode
Before performing any further processing, the performer
Set the recording channel. Playback channel settings
Has already been explained.
Only the processing for the above will be described. Setting of recording channel When recording, the player first switches to a record switch.
Press 41. As a result, the record switch 41 is turned off.
Event is detected via the operation panel interface 8.
Is issued, and the CPU 3 executes step S of the panel processing routine.
At 803, the record switch shown in FIG.
Execute the switch processing routine. First, step S1801
, An ON event of the record switch 41 is detected
It is determined whether or not it has been performed. In this case, step S180
The judgment result of step 1 becomes "Yes" and step S1802
And set the record switch flag RECSW to “1”.
Write. Next, the process proceeds to step S1803, at which point
Flag RSW corresponding to each channel in
(I) The contents of (i = 1 to 16) are determined, and RSW (i)
= All channel numbers i that satisfy "1", i.e.
At that point, it has already been set as a recording channel.
Detects the number of the MIDI channel being used. And L
The detected channel of the ED lamp LQi (i = 1 to 16)
The LED lamp corresponding to the cell number i is turned on. Soshi
To return to the main routine via the panel processing routine.
You. The performer is the point of the LED lamp LQi (i = 1 to 16)
Depending on the lighting status, which MIDI channel is the recording channel
Check if it is. The player releases his / her finger from the record switch 41.
Then, the off event of the record switch 41 is
CPU 3 detects through the interface 8
In step S803 of the panel processing routine,
Execute the record switch processing routine. in this case,
Record switch 41 off event detected
First, after steps S1801 and S1804,
Proceed to step S1805. And record switch
Write "0" to the lag RECSW. Then step S
Proceed to 1805, corresponding to each channel at that time.
The reproduction flag PSW (i) (i = 1 to 16) is determined.
And all channels satisfying PSW (i) = "1"
I, that is, the playback channel at that time
Of the MIDI channel number set as
You. Then, the LED lamp LQi (i = 1 to 16)
The LED lamp corresponding to the detected channel number i.
Light up. Then, the main routine is executed via the panel processing routine.
Return to the routine. As a result of such processing being performed,
The contents of the switch flag RECSW are
"1" only during the period when switch 41 is pressed, record switch
When the switch 41 is not pressed, the value is “0”. Ma
If the record switch 41 is pressed, L
Recording channel by ED lamp LQi (i = 1 to 16)
Is displayed, and if not pressed, the playback channel
Will be displayed. MIDI channel set as recording channel
If you want to exclude a channel from a recording channel, the performer
With the code switch 41 pressed, press the MIDI
The sequencer channel switch BMi corresponding to the channel
Press. In this case, the sequencer channel switch processing
When the routine is executed, the process proceeds to step S1608.
In this case, the determination result is “YES”. And record
Write “0” to the de-flag RSW (N) (= RSW (i)).
(Step S1611), LED lamp LQ_NTo
The light is turned off (step S1611), and the panel processing routine is executed.
And returns to the main routine. The above processing is performed
The MIDI channel desired by the performer is recorded
Set as a channel. Automatic performance and recording With the above processing, the playback channel and recording channel
When the setting of the record is completed, the player switches to the record switch 41.
And the start switch 42 are both pressed. As a result,
When the record switch 41 is pressed, REC
SW = "1". Also, the start switch 42
On event is sent via the operation panel interface 8
Upon detection, the CPU 3 sets the flow in FIG.
The shown start switch processing routine is executed. This place
In this case, since RECSW = "1", step S170
The determination result of step 1 is “Yes”, and step S1705 is performed.
Proceed to. Then, the content of the record flag REC is "0".
Is determined. If the result of this determination is "YES"
If there is, the process proceeds to step S1706 and the start flag
Write “1” to START and record flag REC
Put in. Next, the process proceeds to step S1707, where each
An initial setting process for a seed pointer and the like is performed. And the panel
The process returns to the main routine via the control routine. In addition, record
When the switch 41 is pressed, the REC =
If it is “1”, that is, during recording,
Both the switch 42 and the record switch 41 are pressed.
The start switch processing routine.
When the process proceeds to step S1705, the determination result is “NO”.
And execute steps S1706 and S1707.
To the main routine via the panel processing routine
Return. When START = "1",
As in the case of the playback mode described above, the interrupt processing
If the chin is executed, the process proceeds to step S2105.
Thus, a reproduction processing routine is executed. And the playback processing
The performance data memory area of the RAM 5
A MIDI event corresponding to the playback channel is read from
When the event is issued (step S2305), the event is M
The data is sequentially written to the IDI buffer. In addition, keyboard operation
Or a MIDI event is generated by operating the operation panel.
MIDI event from the
If these MIDI events are
The data is sequentially written to the DI buffer. Thus, MI
As a result of writing the MIDI event to the DI buffer,
When the MIDI processing routine has been executed, step S5 is executed.
The judgment result of “01” is “Yes”. And MIDI
MIDI event is fetched from buffer and event
It is written to the register EV and the MIDI event
The MIDI channel number of the
It is written to CH (step S502). And Ive
Based on the MIDI event captured in the event register EV.
The note event processing routine (step S50)
4) Or channel event processing routine (step
S505) is executed, and is taken into the event register EV.
Parameter corresponding to the channel event
It is sent to the forming circuit 9. Thus, reading from the RAM 5
Keyboard operation or operation with the MIDI event
MIDI events generated by operating the panel,
Indicates that the MIDI event supplied from the external device is MIDI
Music synthesis circuits extracted from the buffers and corresponding to each
Is performed. Next, when the flow advances to step S506, REC =
Since it is “1”, the judgment result is “Yes”,
In step S507, the recording process shown in FIG.
The logical routine is executed. First, in step S1901
Proceed to the record flag corresponding to the MIDI channel MCH.
Whether the content of the RSW (MCH) is “1”,
Retrieve from MIDI buffer in MIDI processing routine
MIDI data written out and written to the event register EV
Determine if the event is a MIDI event to be recorded
Refuse. If the result of this determination is “Yes”,
The process proceeds to step S1902. And the MIDI chip in RAM5
For the buffer track corresponding to the channel MCH,
From writing MIDI events before to the present
Write the elapsed time at
The MIDI event in the vent register EV is
Write as information. Then, through the MIDI processing routine,
Then, the process returns to the main routine. After that, MIDI processing routine
A similar process is performed every time is started. From the performance data memory area in the RAM 5
All MIDI events of the playback channel are read
And the playback processing routine as in the case of the playback mode described above.
Step S2312 is executed, and START =
It becomes "0" and the automatic performance ends. Also, the performer
When the top switch 43 is pressed, the stop switch
The processing routine is executed, and the process proceeds to step S2004.
No. If REC = “1”, step S
The judgment result of 2004 becomes "Yes" and the step S2
Proceed to 004 and write “0” to record flag REC
No. Next, the process proceeds to step S2006, where all recording channels are recorded.
Note-off information for the buffer track corresponding to the
Report and exit code. Next, in step S2007
Go to the buffer track corresponding to each recording channel.
The performance data corresponding to each MIDI channel number
Write to the memory area. And stop switch processing
Ends the routine and returns to the main routine. Thereafter, MI
Some MIDI event is written to DI buffer
Even if the MIDI processing routine is executed,
= "0", the recording processing routine is not executed.
Thus, the recording ends. Before the automatic performance ends
When the stop switch 43 is pressed,
Steps S2002 and S20 of the switch processing routine
03 is executed, the processing after step S2004 is performed.
It is executed and the recording ends. As a result of the above processing being performed, the RAM
The contents of the performance data memory area in 5 are updated as follows.
Be renewed. a. Playback channel set as recording channel
Performance corresponding to MIDI channels not set as
Performance data memory area MIDI event before recording in this performance data area
Event is erased by recording. And during recording, keyboard 1
Alternatively, the MIDI event by operating the operation panel 7
Occurs, or receives a MIDI event from an external device.
If you receive a MIDI message,
The performance number memory area corresponds to the
Is written to. b. Set as recording and playback channels
Performance data area corresponding to MIDI channel The contents of this performance data area are stored before recording.
Operation in playback / recording mode for MIDI events
MIDI events among MIDI events newly occurred
The corresponding number of the channel is updated to the merged content.
It is. More specifically, it is as follows. b1. A keyboard channel that matches the recording channel is set.
If specified If a keyboard performance is performed during recording, the keyboard channel
The contents of the performance data memory area corresponding to the
Generated by playing the keyboard against the contents stored in
Merges note events. Also, diamond
Recording with the priority flag PRSW being "1",
If the dial 51 is operated at that time, the dial operation is performed.
The channel event generated according to the operation is
Write to the performance data memory area corresponding to the play channel
I will. In this case, connect to the keyboard channel before recording.
Channel events in the corresponding performance data memory area
Event is deleted. On the other hand, dial priority flag PRSW
Is recorded in the state of "0".
Is operated in response to a dial operation.
The channel event corresponds to the keyboard channel
It is merged with the contents of the performance data memory area. b2. External MIDI events matching the recording channel
When received from device The received MIDI event is the corresponding MIDI channel.
Mark the contents of the performance data memory area corresponding to the channel.
Will be [0061] As described above, according to the present invention,
Output sound information independently via multiple communication channels
Music information output means, and the plurality of channels
Tone formation that forms a tone based on input tone information
Means and a tone output by the tone information output means
Musical sound output via a specific communication channel among information
Storage means for storing information; and
Tone information and metronome sound for tronome sound formation
A pronunciation instruction is output through the specific communication channel, and the
After that, the tone information stored in the storage means is stored in the specific
Generating the metronome sound output via a communication channel
And means for freely available communication channels.
Generates a metronome sound normally without reducing the number
The effect is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of an embodiment in which the present invention is applied to an automatic performance device. FIG. 2 is a plan view showing an operation panel of the embodiment. FIG. 3 is a diagram for explaining routines executed in the embodiment and their relationships; FIG. 4 is a flowchart illustrating the operation of the embodiment. FIG. 5 is a flowchart illustrating the operation of the embodiment. FIG. 6 is a flowchart illustrating the operation of the embodiment. FIG. 7 is a flowchart illustrating the operation of the embodiment. FIG. 8 is a flowchart illustrating the operation of the embodiment. FIG. 9 is a flowchart illustrating the operation of the embodiment. FIG. 10 is a flowchart illustrating the operation of the embodiment. FIG. 11 is a flowchart illustrating the operation of the embodiment. FIG. 12 is a flowchart illustrating the operation of the embodiment. FIG. 13 is a flowchart illustrating the operation of the embodiment. FIG. 14 is a flowchart illustrating the operation of the embodiment. FIG. 15 is a flowchart illustrating the operation of the embodiment. FIG. 16 is a flowchart illustrating the operation of the embodiment. FIG. 17 is a flowchart illustrating the operation of the embodiment. FIG. 18 is a flowchart illustrating the operation of the embodiment. FIG. 19 is a flowchart illustrating the operation of the embodiment. FIG. 20 is a flowchart illustrating the operation of the embodiment. FIG. 21 is a flowchart illustrating the operation of the embodiment. FIG. 22 is a flowchart illustrating the operation of the embodiment. FIG. 23 is a flowchart illustrating the operation of the embodiment. [Description of Signs] 1... Keyboard, 3... CPU, 5... RAM, 9.

Claims (1)

(57) [Claims] 1. A plurality of communication channels.Corresponding toMusical soundConfiguration
informationAnd pronunciation instruction informationMusic information output means for outputting The pluralitycommunicationchannelCorresponding toMusical soundConfigurationBased on information
Means for forming musical sounds, Every time a certain time elapses, The plurality of communication channels
For specific communication channelsMetronome sound formation
Music forConfigurationInformation andTheInstruct metronome soundEmotion
Information to the tone generatorOutput,The outputAfter,Said met
The musical tone set in the musical tone forming means for forming a lonome sound.
Returns the sound setting information to the state before the metronome sound was generated
And a metronome sound generating means.
Electronic musical instruments.