JPH03188495A - Automatic player - Google Patents

Abstract

PURPOSE:To carry out synchronization with simple constitution by writing position data at timing when automatic playing data corresponding to a playing operation is written, permiting a synchronization control means to start automatic playing based on an automatic playing starting time and from its time and simultaneously playback. CONSTITUTION:A player uses and plays the keyboard 2021 of a musical instrument operating part 202 in response to the playback action of the musical piece of a CD player part 100, and the played contents are stored in automatic playing memory 208. The timing of starting the automatic playing in the automatic playing memory 208 is arbitrarily selected through the use of the UP and DOWN switches 2025 and 2026 of the musical instrument operating part 202, and a display part 210. When the automatic playing is started by the starting switch 2033 of the musical instrument operating part 202, the playback of the musical piece is started at the timing corresponding to audio data on a CD 105 in synchronization with the start of the automatic playing. This control is carried out through the use of CD absolute time data stored in the automatic playing memory 208 together with a key-on instruction. Thus, the synchronization is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic performance device that performs automatic performance in accordance with music played on a recording medium such as a CD.

[Conventional technology]

In recent years, automatic performance using electronic musical instruments has become popular, but it is not just automatic performance, but automatic performance that is synchronized with music playback from music tapes and compact discs (hereinafter referred to as CDs). If possible, you can enjoy more complex and diverse music by, for example, playing a minus-one-style orchestral CD that excludes the performances of specific instruments, and synchronizing automatically playing instruments with it.

Conventionally, as a technology for synchronizing the automatic performance of an electronic musical instrument, etc. with the music being played, sequence data, which is the performance information that should cause the electronic musical instrument, etc. to perform automatically, is converted into MIDI data, and a special time code is added to this MIDI data. , for example, stores minute/second/frame information based on MIDI quarter frame messages, reads out this time code sequentially, and sends it to the SMP of an MTR (tape recorder).
There is one that synchronizes the TE signal.

[Problem to be solved by the invention]

However, the above conventional example has a problem in that it is necessary to record a special MIDI time code as sequence data, and the recording cannot be easily performed by the user.

Also, an SM
This method has a problem in that the PTE signal must be recorded in advance and special specifications are required.

Furthermore, there is a problem in that complicated hardware is required for synchronization.

The object of the present invention is to enable reliable synchronization with a simple configuration, - enable the use of recording media that are common in boat fishing with normal specifications, and furthermore, enable automatic playing of musical instruments from midway through. To make it possible to play a song in synchronization with the beginning of the song, and to make it possible to automatically play a musical instrument in synchronization with the playback of the song from the middle.

[Means to solve the problem]

The present invention first includes a sound source means for performing automatic performance based on automatic performance data. The means is, for example, a PCM method,
These include electronic keyboard instruments, electronic string instruments, electronic wind instruments, etc., which have sound sources using waveform modulation, harmonic addition, and harmonic subtraction methods. Alternatively, it may be an acoustic musical instrument or the like that has a function of performing automatic performance based on automatic performance data. Note that the sound source means may be connected to the outside of the main body via an interface such as MIDI. here,
Automatic performance data is data output from the musical instrument when the user plays an electronic musical instrument, such as key-on commands and key data, key-off commands and key data, and wait commands and waits for timing key-on, key-off, etc. These include data, an end command that instructs the end of automatic performance, and the like.

In addition, commands such as a program change command for instructing a change in tone color may also be included.

Next, it has reproduction means for reproducing audio data recorded on the recording medium. The means is, for example, a compact disc player or a digital audio tape recorder. The audio data in this case may be, for example, minus one data containing music other than the specific performance part, or data of a normal music piece.

The apparatus also includes position data reading means for sequentially reading out position data indicative of each timing of the audio data being played back recorded on the recording medium in synchronization with the playback operation of the audio data by the playback means. Here, the position data is, for example, time data indicating the elapsed time from the recording start point of the audio data recorded in the subcode of the above-mentioned compact disc player or digital audio tape recorder. The position data reading means is realized, for example, as a part of the function of the above-mentioned compact disc player or digital audio tape recorder, and is a means for reproducing audio data and sequentially outputting time data corresponding thereto.

Subsequently, it has automatic performance data storage means for storing the above-mentioned automatic performance data. In this case, the means includes predetermined automatic performance data among the above-mentioned automatic performance data, for example, the timing of audio data to be reproduced by the reproduction means in synchronization with an automatic key-on operation in the sound source means according to a key-on command. Position data is stored together with the above-mentioned predetermined automatic performance data.

Furthermore, it has synchronization start point designation means for allowing the user to specify the synchronization start time point. The means is implemented, for example, as an automatic performance start point specifying means that allows the user to specify the position of any predetermined automatic performance data on the automatic performance data storage means as the automatic performance start time point. Alternatively, for example, the present invention may be realized as a reproduction start point specifying means that allows the user to specify an arbitrary reproduction start timing of audio data while the audio data is being reproduced by a reproduction means.

Then, based on the position data stored in the automatic performance data storage means, according to the specified operation at the time of synchronization start,
Or, based on the position data and the position data sequentially read out from the position data reading means, instruct the reproducing means to start reproducing audio data from the timing corresponding to the synchronization start point mentioned above, and automatically in synchronization with the instruction operation. The apparatus includes a synchronization control means that sequentially reads automatic performance data stored in the performance data storage means starting from the automatic performance data corresponding to the synchronization start time and causes the sound source means to perform automatic performance based on the automatic performance data. The means reads, from the automatic performance data storage means, position data stored together with predetermined automatic performance data at the automatic performance start point specified by the above-mentioned automatic performance start point designation means, and calculates the timing from the timing of the position data. Instructs the reproducing means to start reproducing the audio data, and in synchronization with the instruction operation, reads automatic performance data stored in the automatic performance data storage means in order from the predetermined automatic performance data at the time of starting the automatic performance, and generates a sound based on the automatic performance data. This is realized as a means for causing the means to perform automatic performance. Alternatively, the automatic performance data storage means is searched for position data that first exceeds the device data constituted by the position data reading means at the playback start timing specified by the playback start point specifying means, and then, from the playback start timing. instructs the reproducing means to start reproducing the audio data, and after the reproducing start, the position data sequentially read out from the position data reading means is stored in the automatic performance data storage means at a timing that coincides with the above-mentioned searched position data. This is means for sequentially reading out automatic performance data corresponding to the above-mentioned searched position data and causing the sound source means to perform automatic performance based on the read automatic performance data.

In addition to the above configuration, it can be configured to include the following performance operation means and automatic performance data writing means.

That is, it has a performance operation means that allows the user to perform performance operations. The means is, for example, a keyboard.

Further, the user performs a performance operation using the performance operation means in accordance with the reproduction of audio data by the reproduction means, and the performance information outputted from the performance operation means in response to the performance operation is synchronized with the performance operation as automatic performance data. automatic performance data storage means, and in this case, at the timing when predetermined automatic performance data is written, the device data consisting of the position data reading means is written into the automatic performance data storage means together with the predetermined automatic performance data. It has performance data writing means.

Furthermore, in addition to the previous configuration, after the synchronization control means starts playing audio data in the playback means and starts automatic performance in the sound source means, position data read out sequentially from the position data reading means and automatic performance data storage means are provided. The synchronization correction means sequentially compares the position data sequentially read from the automatic performance data storage means and, if they do not match, corrects the playback timing of the audio data in the playback means based on the timing of the position data read from the automatic performance data storage means. It may be configured to have.

[For production]

First, the user performs a performance operation using the performance operation means in accordance with the reproduction of audio data by the reproduction means, and then writes automatic performance data corresponding to the performance operation via the automatic performance data writing means. It can be stored in automatic performance data storage means. In this case, at the timing when predetermined automatic performance data corresponding to a predetermined performance operation such as a key-on operation of a key is written, device data constituted by the position data reading means is written together with the above-mentioned predetermined automatic performance data.

Next, the user can designate any predetermined position of automatic performance data on the automatic performance data storage means as the automatic performance start time point, for example, by using the automatic performance start point designation means. Based on this, the synchronization control means can start the automatic performance on the sound source means from that point, and can also start the reproduction of audio data on the reproduction means in synchronization with this.

As described above, this control is performed using position data stored together with predetermined automatic performance data in the automatic performance data storage means.

Furthermore, contrary to the above-mentioned effect, it is also possible to specify the playback start point on the playback means side. That is, the user can specify an arbitrary playback start timing of the audio data, for example, by using the playback start point specifying means while the audio data is being played back by the playback means. Based on this, the synchronization control means can start the playback of the audio data on the playback means from that point, and can also start automatic performance on the sound source means in synchronization with this. As described above, this control is performed based on the position data stored together with the predetermined automatic performance data in the automatic performance data storage means and the position data sequentially read out from the position data reading means.

In addition to the above effects, if the synchronization correction means described above is provided, even after the playback means starts playing audio data and the sound source means starts automatic performance, corrections can be made at any time so that the two are synchronized. can.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

(2) FIG. 1 is a block diagram showing the overall circuit configuration of an automatic performance device including an electronic keyboard instrument and a CD player, which is an embodiment of the present invention.

In FIG. 1, the area surrounded by a dashed line 100 is the CD
In the player section (hereinafter referred to as CD player section 100),
A portion surrounded by a dashed line 200 is an electronic keyboard instrument section (hereinafter referred to as electronic keyboard instrument section 200).

First, the block configuration of the CD player section 100 will be explained.

Reference numeral 105 denotes a CD, which is set in a part of a holder (not shown) of the CD player section 100 to perform a playback operation.

The TOC memory 101 is a memory that stores TOC data in the lead-in area, which is read when the disc of the CD 105 is set. The TOC data will be described later.

Next, 102 is a CD operation section. The configuration of the CD operation section 102 is shown in FIG. The playback switch 102I not only instructs normal CD playback, but also instructs playback in a CD priority mode, which will be described later. The stop switch 102□ instructs to stop playing the CD. The pause switch 1023 specifies the point in time when playing a CD starts in the CD priority mode. The fast forward switch 1024 and the fast reverse switch 1025 are
Move the point at which playback starts in the same <CD priority mode. The numeric keypad 1026 from "0" to "9" specifies the song number to be played.

Next, returning to FIG. 1, the CD control section 103 is, for example, a microprocessor, and controls the entire CD player section 100.
Various data are exchanged between the musical instrument control unit 201, the TOC memory 101, and the like. Furthermore, when driving the CD 105, a drive control signal is output to the servo circuit 104.

The servo circuit 104 controls the rotation speed of a disk motor 106 that rotationally drives the CD 105.
The linear velocity of each track is controlled to be constant.

Further, the servo circuit 104 performs focus servo and tracking servo for the optical pickup 107 that irradiates each track of the CD 105 with a laser beam. It detects the error and controls and drives the objective lens in the optical pickup 107 in the optical axis direction based on the focus error.The tracking servo also controls the deviation of the laser beam from the center of the track of the CD 105. The optical pickup 107 is moved in the radial direction by the pickup feed motor 108 while detecting This is to control the laser beam irradiated from the CD 105 so that the laser beam is irradiated accurately onto the center of the track of the CD 105.

Here, protrusions called pits are carved on the side of the CD 105 that is irradiated with the laser beam, and PCM signals (digital signals) are recorded by these protrusions. The optical pickup 107 detects the presence or absence of a pit based on the amount of reflected light from the irradiated laser beam, and outputs an electric signal corresponding to the presence or absence of the pit and its length to the demodulation circuit 109.

The demodulation circuit 109 detects a frame synchronization signal from the electrical signal output from the optical pickup 107, identifies the division and order of each audio data and subcode, etc., which will be described later, and further performs EFM modulation (described later) within each frame.
The resulting 14-bit digital data (subcode, audio data, etc.) is demodulated and converted into 8-bit digital data. Of the EFM demodulated digital data, the audio data is input to the audio data signal processing circuit 111 and the subcode is input to the subcode signal processing circuit 110.

The audio data signal processing circuit 111 writes input audio data to an internal RAM (not particularly shown), performs error correction processing based on a code called a Reed-Solomon code, and also performs deinterleaving processing. and outputs each sample of 16-bit digital audio data to the D/A converter 112 in units of frames.

A D/A converter 112 and an LPF (low pass filter) 113 having a cutoff frequency of 172 sampling frequencies convert the input 16-bit digital audio data into a corresponding stereo analog signal.
Sound is emitted to the outside via an amplifier 114 and a speaker 115.

The subcode signal processing circuit 110 performs error detection and correction processing on the subcode, which will be described later, in the same manner as the audio data signal processing circuit 111, and further performs deinterleaving processing to restore the subcode, and ,
The restored subcode is output to CDf#Ifa section 103.

Next, the block configuration of the electronic keyboard instrument section 200 will be explained.

As shown in FIG. 3, the musical instrument operation section 202 includes a keyboard 202, a mode changeover switch 202z, and a start switch 20.
23, stop switch 2024, UP switch 202
5 and a DOWN switch 2026. These will be described later.

The musical instrument control section 201 is, for example, a microprocessor, and in addition to the normal performance operations of the electronic keyboard instrument section 200, the automatic performance data writing operation in the sequencer light mode described later, and the automatic performance in the sequencer priority mode or CD priority mode described later. Control behavior.

Tone generator 203 outputs a musical tone signal based on performance data from musical tone control section 201, and then the musical tone signal is input to D/A converter 204.

A D/A converter 204 and an LPF (low pass filter) 205 having a cutoff frequency of 172 sampling frequency convert the digital musical tone signal from the tone generator 203 into an analog musical tone signal. Then, the converted output is sent to the amplifier 206 and the speaker 207.
The sound is emitted to the outside via.

The timer circuit 209 is used to control operations related to automatic performance, and has the configuration shown in FIG. 4. This configuration and operation will be described later.

Although not specifically shown, the display unit 210 displays key data 1) ty at the start of automatic performance in the sequencer priority mode, as will be described later.

(Format on CD 105) Next, CD 10
The recording format of digital data in No. 5 will be explained.

When recording/playing digital data on a CD, 2
Two important operations take place. That is, error correction and modulation (and demodulation).

Here, error correction means that the optical pickup 107
Refers to the process of correctly correcting data errors that occur due to defects in the recording medium, tracking deviation of the optical pickup 107, poor focus, etc. when reading digital data recorded on a CD. The audio data signal processing circuit 111 executes the processing.

Modulation, when handling digital data on a certain medium, refers to the process of converting it into an electrical signal waveform suitable for recording and reproducing on that medium.When recording digital data on the CD 105 in Fig. 1, EFM, which will be described later, is used. A modulation method called modulation is employed. Then, the demodulation is performed on the above medium, that is, CD1
This process is for restoring the original digital data from the modulated signal read from the demodulation circuit 10 in FIG.
9 is executed.

Depending on the above two operations, error correction and modulation, C
The recording format of digital data in D105 is determined. FIG. 5 shows the recording format of digital data to be recorded on the CD 105 in this embodiment.

As shown in the figure, digital data is recorded in units called frames, and from the beginning of each frame,
Sync pattern (synchronization pattern) 501, subcode 5
02, audio data 503, parity word 504
, audio data 505, and parity word 506 are arranged.

Parity words 503 and 506 are audio data 5
03.505 is a code added to correct data errors in frame units.
00, the audio data signal processing circuit II
I automatically corrects data errors in each frame by making a determination using the parity words 504 and 506.

Here, the audio data 503 and 505 recorded in one frame in FIG. 5 do not record temporally continuous samples of audio data, but according to a method called cross interleaving, the order of each sample is The audio data in a plurality of consecutive frames (for example, a maximum of 108 frames) are recorded on a CD disc while being dispersed, and when played back, they are rearranged in the original order according to the same rule. The reason why such processing is performed is as follows. In other words, in the above-mentioned error correction using parity words, it is generally not possible to correct data errors within one frame if they exceed a certain number of bits.In particular, on CD discs, errors may occur partially due to scratches or dirt. Large data errors tend to be concentrated in the data, and it is often impossible to correct them simply by continuously recording/reproducing consecutive samples of audio data, even by adding the above-mentioned parity word. Therefore, by performing loss interleaving as described above, concentrated errors in the audio data 503 and 505 on the CD disc can be dispersed during playback, and error correction using parity words can be easily performed. . In this way, the audio data 503, 505 recorded on the CD 105 of FIG. 1 by the cross-interleaving method is reproduced in the audio data signal processing circuit 111 of FIG. 1 by a completely reverse process to that during recording.

Note that parity words 504 and 506 are interleaved with audio data 503 and 505, and only that portion of subcode 502, which will be described later, is independently incremented.

Next, EFM modulation will be briefly explained. In general, it is not known with what probability the logic "1" and logic "0" of each bit of digital data having the structure as shown in FIG. 5 will occur. The optical pickup 107 in FIG.
When detecting digital data as an electrical signal from the bits on D105, if either logic "1" or "0" continues for a long time, a DC component will occur and the bit interval information will be interrupted. Here, in the operations of the focus servo and tracking servo described above in the servo circuit 104 of FIG. 1, a signal called an error signal is generated and used. extracted from the output of If this error signal contains many low frequency components, especially DC components, it becomes difficult to perform stable servo. Moreover, the demodulation circuit 1 in FIG.
09 first generates a synchronized clock from the output of the optical pickup 107 and performs digital data reproduction processing, but as mentioned above, if the bit interval information is interrupted, this clock cannot be generated. It's gone. Therefore, in order to remove such DC components as much as possible, a modulation called EFM modulation is generally performed when recording on the CDIO 3. The details of EFM modulation will be omitted, but for the digital data to be recorded on the CD105,
Data conversion is performed so that either logic "1" or "0" does not continue for a long time in the consecutive bits, and the CD10
Recorded in 5. In this way, CD105 in FIG.
In order to reproduce the EFM modulated signal recorded in the 100-bit, it is sufficient to perform demodulation processing that is the reverse of the above-mentioned modulation processing, and this processing is performed in the demodulation circuit 108 shown in FIG.

Here, the sync pattern 501 in FIG. 5 itself is not interleaved or modulated, but is added at the end after interleaving and modulation when recording digital data onto the CD 105. The same pattern is a signal for synchronizing the frame shown in FIG. 5 during demodulation in the demodulation circuit 108, that is, for identifying the start of a frame, and is a pattern that never occurs in other signals 502 to 506. is used.

Next, as digital data recorded on the CD 105, in addition to the audio data 503 and 505 shown in FIG.
There is control data called subcode. The role of the subcode will be explained below with reference to FIG. 6, which shows an example of a CD 105 containing three pieces of music.

Various data are recorded from the inner circumference to the outer circumference of the CD105, but the innermost area (diameter of 46 mm to 50 m)
area) is called the lead-in area. As part of the subcode in this area (502 in Figure 5), the TOC
(Table of Contents)
Information corresponding to the table of contents of all songs recorded on one CD is recorded. In addition to the track number data indicating each song number, the table of contents information for each TOC includes information from the start time T of the program area to the timings T3 and T2 of each head part in the program area, as shown in Figure 6. , T...
Contains CD absolute time data that represents the elapsed time to 1/75 second accuracy.

In FIG. 1, when a CD 105 is set in the CD player section 100, the CD81111 section 103 controls the disk motor 106 and the optical pickup 107 via the servo circuit 104 to access the input area of the CDI05. Furthermore, the CD control section 103 reads out the TOC of the lead-in area from the optical pickup 107 and demodulation circuit 109 via the subcode signal processing circuit 110, and stores it in the TOC memory 101.

Next, in the program area following the lead-in area, among the data recorded in frame units as shown in FIG.
Audio data (503 in Fig. 5) which is music data for each picture
and 505), as part of the subcode (502 in Figure 5), the elapsed time from the start point T0 of the program area to the point in time during the performance is expressed with an accuracy of 1/75 second.
CD absolute time data is included (see Figure 6).

In this embodiment, as will be described later, the CD control section 10 of FIG.
3, the optical pickup 107 and the demodulation circuit 1 are connected to each other while the CD is being played.
By reading this CD absolute time data at intervals of 1/75 seconds from 09 through the subcode signal processing circuit 110, time information at each performance timing is controlled.

(of ) Next, the general operation of this embodiment will be described below.

The performer operates the CD operating section 102 in FIGS. 1 and 2.
By using each switch from 21 to 1026, the CD
The player section 100 can be operated as a normal CD player. Furthermore, by selecting the normal mode using the mode changeover switch 202□ of the musical instrument operation section 202 shown in FIGS. 1 and 3, the electronic keyboard instrument section 200 can be operated as a normal electronic keyboard instrument. I can do it.

In addition, the performer can play the CD1 in the CD player section 100.
In synchronization with the playback operation of each picture of 05, the electronic keyboard instrument section 2
00 allows automatic performance to be performed.

First, the performer selects the sequencer light mode using the mode changeover switch 202z (FIG. 3) of the instrument operating section 202, so that the player can switch the instrument operating section 202 in accordance with the music playback operation on the CD player section 100. The content of the performance performed using the keyboard 202+ (FIG. 3) can be stored in the automatic performance memory 208. In this case, each time a key-on operation is performed, the musical instrument control unit 201 in FIG.
The absolute time data is received and stored in the automatic performance memory 208 together with the performance data corresponding to the key-on.

Next, the performer can perform the following operations by selecting the sequencer priority mode, which is one of the sequencer play modes, using the mode changeover switch 2022 of the musical instrument operation section 202. That is, the performer uses the automatic performance memory 20
The timing for starting automatic performance among the performance contents stored in the musical instrument operation section 202 can be set by
5 and DOWN switch 2026 (Figure 3) and the first
It can be arbitrarily selected using the display section 210 in the figure.

Then, when the performer starts the automatic performance from the above-mentioned selected timing by pressing the start switch 202z (FIG. 3) of the instrument operation section 202, the performer starts the automatic performance from the selected timing, and in synchronization with the start switch 202z (Fig. 3).
Playback of the music piece can be started from the timing corresponding to the audio data on D105. This control is
This is performed using the CD absolute time data stored in the automatic performance memory 208 together with the key-on command. In addition, C
It is also possible to perform only an automatic performance operation without performing reproduction of DIO3.

Furthermore, the performer can perform the following operations by selecting the CD priority mode, which is one of the sequencer play modes, using the mode changeover switch 202□ of the musical instrument operation section 202. That is, the performer plays the electronic keyboard instrument section 2 while playing back the audio data recorded on the CD 105.
Set the timing to synchronize and start the automatic performance of
It can be arbitrarily selected using the fast forward switch 1024 or fast reverse switch 1025 (FIG. 2) of the D operation section 102. Then, the performer presses the pause switch 1023 on the CD operation section 102 to temporarily stop the playback of the audio data, and then presses the start switch 2023 (FIG. 3) on the instrument operation section 202 to release the paused audio. As data playback resumes,
In synchronization with this, the automatic performance can be started from the timing corresponding to the corresponding performance content on the automatic performance memory 208. This control is also performed using the CD absolute time data stored in the automatic performance memory 208 together with the key-on command, as in the case of the sequencer priority mode.

Each operation of the sequencer light mode, sequencer priority mode, and CD priority mode will be explained in detail below.

(Sequencer light mode) First, we will explain the operation of sequencer light mode. FIG. 7 is an operation flowchart showing the operation in this mode, and FIG. 8 is a diagram showing the data structure of the automatic performance memory 208. The following description will be made with reference to these drawings.

The performer first selects the sequencer light mode using the mode changeover switch 202z (FIG. 3) of the musical instrument operation section 202.

Next, if the performer wishes to have the music on the CDIO 3 played back in synchronization with the automatic performance, the performer performs the following operation.

That is, the performer presses the numeric keypad 10 of the CD operation section 102.
2. I want to synchronize playback with automatic performance using &
Select a song on the D105, then press the playback switch 102
Press 1 (see Figure 2). At this time, in the CD player section 100, the CDf151111 section 103 accesses the TOC section upper 03101, and the numeric keypad 1026
The song number data and CD absolute time data of the song corresponding to the number are read out. Then, the CD811m unit 103 controls the optical pickup 107 via the servo circuit 104, and moves the optical pickup 107 to a position on the CD 105 corresponding to the above-mentioned CD absolute time data. This results in
The selection of songs on the CD 105 is performed. Also, C
The D'7111jB section 103 outputs the CD absolute time data read from the TOC memory 101 to the musical instrument control section 201. Note that in this state, the audio data playback operation is not yet performed.

On the other hand, if there is no need for the performer to play the music on CDIO3 in synchronization with the automatic performance, the performer can use the CD
No operation is performed on the operation unit 102.

After the above-described operation, the CD control section 103 starts the operation flowchart shown in FIG.

First, in 5701, it is monitored whether the start switch 2023 of the musical instrument operation section 202 has been pressed.

Start switch 202. is pressed, then 3702
, press the playback switch 102 of the CD operation section 102 in advance.
It is determined whether or not I is pressed (S702).

If the performer presses the playback switch 1021 in advance in order to play the music on the CD 105 in synchronization with the automatic performance, the determination in 5702 becomes YES, and the process in 570
Proceed to step 3.

At step 5703, a CD cue command CfP is written to memory address l of the automatic performance memory 208 as shown in FIG. Also, CD absolute time data DAT indicating the beginning of the song to be played in synchronization with the automatic performance sent from the CD control unit 103 in advance is written to memory address 2 as shown in FIG. 8.Furthermore, Similarly, a CD play command CPY is written to memory address 3 as shown in FIG. 8. These functions will be described later.

Next, in 5704, the CD control unit 103
D playback instruction is given. As a result, the CD player section 1
In 00, the CD control section 103 controls the servo circuit 10.
4 to drive the disk motor 106. As a result, the audio data of the music piece selected in advance by the performer is transferred to the optical pickup 107 and the demodulation circuit 10.
9 and the audio data signal processing circuit 111
D105 and LP from the D/A converter 112.
F113 and is reproduced from the speaker 115 via the amplifier 114.

The performer uses the keyboard 202 of the musical instrument operation section 202 to play along with the music on the CDIO 3 that is thus reproduced. As a result, 5705 → 5706 → 5707 → 5
Each time the process of 5705 is executed in the repeated operation of 705, the performance data input from the keyboard 202□ is
The data is sequentially written into the automatic performance memory 208 as sequence data as shown in FIG. As shown in FIG. 8, the sequence data includes wait command 01 and wait data DWT, key-on command CON and key data DKY, key-off command COF and key data DKY, and CD absolute time data DAT.

In FIG. 8, a wait command CWT is a command to wait the execution of the next performance data for a time indicated by wait data DWT, and the wait data DWT is generated in the timer circuit 209 of FIG. 1 or 4. Every time the current performance operation is executed, the timer counter 20 is sent from the instrument control unit 201 via the OR circuit 2095 in FIG.
A reset signal R3T is input to 92, and the counter is reset. After this, timer counter 2092 is counted up according to the clock from reference clock generator 209+. Then, the musical instrument control section 20
1 is the timer counter 2 at the time of inputting the next performance data.
The count output of 092 is taken in as wait data DWT and written into the automatic performance memory 208, and the timer counter 209□ is reset again by the reset signal R3T. Through the above operations, the time from one performance operation to the next performance operation is measured, and weight data D is obtained. It is stored as T in the automatic performance memory on the 20th day. Here, the eighth
The wait command CW7 and wait data 1)wt at memory address 4 in the figure indicate the time from when the player presses the start switch 2023 of the musical instrument operation section 202 until the first key operation is performed.

Next, the key-on command CON is a command for instructing the start of sound generation of a musical tone having a pitch indicated by key data [)xv.

On the other hand, the key-off command COF is a command that instructs to stop producing the musical tone of the pitch indicated by the key data DKY.

Furthermore, each time a key-on operation is performed, the CD control unit 103 selects the CD detected from the CD 105 at that time.
The absolute time data DAT is received from the CD control unit 103 and written to the next memory address of the key data D following the key-on command CoN.

This allows the CD player section 100 to
The timing of the song being played in the automatic performance memory 2
It will be recorded in 08.

The performer presses the stop switch 2024 on the instrument operation section 202.
When (FIG. 3) is pressed, it is detected in 5707, and in 5708, an end command CE is written in the automatic performance memo IJ 208 as shown in FIG. 8, and the sequencer write mode is ended.

Also, when sequence data is written to the final memory address of the automatic performance memory 208 during performance, 5706
The determination becomes YES, and the sequencer write mode is forcibly terminated.

Regarding the above operation, since the performer does not need to play the music on the CD 105 in synchronization with the automatic performance, the playback switch 102. If you have not pressed 57 beforehand,
The determination of 02 becomes No.

As a result, the CD cue command CTP, C
The absolute time data DAT and the CD playback command CPY are not written into the automatic performance memory 208, and no playback instruction is given to the CD player section 100. And 57
The process jumps to step 05, and only the operation of writing the sequence data into the automatic performance memory 208 is executed. Also,
At 5705, the CD absolute time data DAT for each key-on command C6N is not written into the automatic performance memory 208 either. This operation corresponds to the operation of writing automatic performance data in a conventional electronic musical instrument with an automatic performance function.

(In sequencer mode) The operation when performing an automatic performance operation after the above-mentioned automatic performance data writing operation will be explained.

First, the operation when the performer selects the sequencer priority mode, which is one of the sequencer play modes, using the mode changeover switch 2022 of the musical instrument operation section 202 will be described.

In this case, the musical instrument control section 201 in FIG. 1 is configured as shown in FIG.
Execute the operation flowchart and the judgment of 5901 is YE.
It becomes S.

First, the performer sets the timing for starting automatic performance among the performance contents stored in the automatic performance memory 208 as shown in FIG. and arbitrarily select it using the display section 210 in FIG. This operation is realized as follows under the control of the musical instrument control section 201.

First, in 5902, it is determined whether the UP switch 202s (FIG. 3) of the musical instrument operation section 202 has been pressed.

When the UP switch 2025 is pressed, the determination in 5902 becomes YES, and an address counter (not particularly shown) indicating a memory address on the automatic performance memory 208 (hereinafter referred to as
(simply referred to as memory address) is incremented to advance to the memory address where the next key-on command CON is stored. That is, in 5903, the automatic performance memory 208
The memory address is incremented by +1 until the key-on command C8N is detected in step 5904.

Key-on command C. If 8 is detected, the judgment of 3904 is Y.
ES, the current memory address is incremented by 1 in 5909, and the key data DIIY stored in the next memory address in the automatic performance memory 208 where the key-on command COS is stored is read out. This key data 1)xy is then displayed on the display section 210 in FIG. As a result, the performer can select the automatic performance memory 2 that is currently being specified.
Key data DKY on 08 can be recognized.

Subsequently, in 5910, the memory address is further incremented by 1, and in 5911, it is determined whether or not CD absolute time data D^d exists at that memory address. In the sequencer light mode described above, the performer presses the playback switch 102. to play the music on the CDIO 3 in synchronization with the automatic performance. When writing sequence data to the automatic performance memory 208 after pressing , the automatic performance memory 208 stores CD absolute time data at the memory address next to the key data DIIY following each key-on command C0N, as shown in FIG. DAT is stored. Therefore, in such a case, the determination of 5911 is Y
It becomes ES.

As a result, in 5912, the weight data D currently displayed on the display section 21o. The CD absolute time data DAT corresponding to T is read from the automatic performance memory 208 and transferred to the CDII[1 section 103. Along with this,
The musical instrument control section 201 instructs the CDgJ control section 103 to locate the beginning of the CD. As a result, the CD control unit 103 controls the optical pickup 107 from the servo circuit 104, and selects the CD 10 corresponding to the above-mentioned CD absolute time data DliT.
5.Cue the position above.

On the other hand, in the sequencer light mode described above, since there is no need for the performer to play the music on the CD 105 in synchronization with the automatic performance, the performer does not press the playback switch 1021 in advance and stores the sequence data in the automatic performance memory 208. When the writing operation is performed, the CD absolute time data DAT is not stored in the automatic performance memory 20B. Therefore, in such a case, the determination in 5911 is NO. In this case, since there is no need to reproduce the music on the CD 105 during automatic performance, the CD cue instruction 5912 is not performed.

Subsequently, in 5913, it is determined whether or not the start switch 2023 (FIG. 3) of the musical instrument operation section 202 has been pressed, and if it has not been pressed, the process returns to 5902 again.

Regarding the above-described operation, if it is determined in step 8902 that the UP switch 202s (FIG. 3) of the musical instrument operation section 202 is not pressed, the determination becomes NO and the process proceeds to step 5905.

In step 5905, it is further determined whether the DOWN switch 2026 (FIG. 3) of the musical instrument operation section 202 has been pressed.

When the DOWN switch 2026 is pressed, the determination in 5905 becomes YES, the memory address on the automatic performance memory 208 is decremented, and the previous key-on command C is
Return to the memory address where oN is stored. That is, the memory address of the automatic performance memory 208 is incremented by -1 in 5907, and the memory address is repeatedly decremented until a key-on command CoN is detected in 5908. Note that if the memory address becomes O as a result of being decremented, the process jumps to step 3913 without being decremented any further.

When the key-on command CON is detected, the determination in 3908 becomes YES, and from then on, the above-mentioned UP switch 202
As in the case where 5 is pressed, operations 5909 to 5913 are executed, displaying the decremented memory address, cueing the CD 105, and starting switch 2.
023 detection operation is performed.

In the above manner, UP switch 2025 or DOWN
Each time one of the switches 2026 is pressed, the memory address on the automatic performance memory 208 is incremented or decremented, allowing the player to move the automatic performance start point to a desired position.

The above operation is performed by starting the start switch 2 of the musical instrument operation section 202.
023 (Fig. 3) is pressed and the judgment of 5913 is YE.
This is repeated until S is reached. In addition, start switch 2
023 and DOWN switch 2026 are not pressed, S 902-3905 → 5913 → 590
Processing loop 2 is repeated until any switch is pressed.

As described above, after the performer operates the UP switch 202 or the DOWN switch 2026 to move the automatic performance start point to a desired position, the instrument operation section 20
By pressing the start switch 202° (FIG. 3) of No. 2, an automatic performance operation on the electronic keyboard instrument section 200 and a synchronous playback operation on the CD player section 100 are executed as follows.

That is, when the start switch 2023 is pressed, 5
The determination at 913 is YES, and further, at 5914 it is determined whether the current memory address points to O or not.

If the current memory address is not 0, the determination at 5914 is NO and the process advances to 5915.

At step 5915, a value obtained by subtracting the current memory address by 3 is held in a buffer (not shown) within the musical instrument control section 201. Now, the contents of the current memory address are the 590 mentioned above.
4 to 5910 indicates the memory address where the next CD absolute time data 1) ay of the key data 1) xv following the key-on command COH is stored. Therefore,
The contents of the buffer obtained by subtracting this value by 3 point to one memory address before the position of the key-on command CoH specified by the player. The meaning of this will be explained later.

Next, at 3916, the contents of the memory address are set to 1, and at 5917, the contents of the memory address 1 are
It is determined whether or not a cue command CTP exists.

In the aforementioned sequencer light mode, the performer presses the playback switch 102 in advance and then writes sequence data into the automatic performance memory 208 in order to play the music on the CD 105 in synchronization with the automatic performance. In this case, a <CD cue command CTP as shown in FIG. 8 is stored at memory address 1 of the automatic performance memory 208. Therefore, in such a case, the determination in 5917 is YES. As a result, in 5918, an instruction is given to the CD control unit 103 to play back the music on the CD 105. In this case, the playback start timing is 391 described above.
This is the point in time when the cue is found in step 2.

After the above operation, in 5919, the above-mentioned 3915
The address data held in the buffer is set to the memory address again. As described above, this content indicates one memory address before the position of the key-on command COS specified by the performer.

This process is a process to ensure consistency with the process of 5943, which will be described later.

On the other hand, in the sequencer light mode described above, since there is no need for the performer to play back the music on the CD 105 in synchronization with the automatic performance, the performer stores the sequence data in the automatic performance memory 208 without pressing the playback switch 102+ in advance. When the writing operation is performed, the CD cue command CTF is not stored in the automatic performance memory 208 (see FIG. 7).
702).

Therefore, in such a case, the determination in 5917 is NO. In this case, since there is no need to reproduce the music on the CDIO 3 during automatic performance, the CD reproduction instruction in 3918 is not performed.

Regarding the above operation, if the current memory address is 0 at the time when the judgment in 3913 mentioned above becomes YES,
The determination at 5914 is YES, and the process proceeds to 5920. In the above case, the performer presses the start switch 2023 without pressing the UP switch 2025 and the DOWN switch 2026 after selecting the sequencer priority mode with the mode changeover switch 2022 of the instrument operation section 202, or This is one of the cases where the UP switch 2025 is pressed several times and the DOWN switch 2026 is pressed the same number of times, and the determination in 5906 becomes YES.

At 5920, the current memory address is incremented by 1 and 59
21, a CD cue command CT is sent to that memory address.
It is determined whether P exists or not.

Now, the current memory address is O, so when it is +1, its contents become 1.

Now, as with the 5917, in the aforementioned sequencer light mode, the performer can synchronize with the automatic performance and play the CD
To play the music on 05, press the playback switch 1.
02. When the sequence data is written into the automatic performance memory 208 after pressing , a CD cue command CTP is stored at memory address 1 of the automatic performance memory 20B as shown in FIG. Therefore, in such a case, the determination in 5921 is YES. As a result, at 5922, the contents of the memory address are further increased by +1.
The content becomes 2. And memory address 2
8, the CD absolute time data DAT indicating the beginning of the song to be played with the automatic performance stored as shown in FIG. 8 is read from the automatic performance memory 208 and transferred to the CD control section 103. In response to this, a CD cueing instruction is given. Further, in 5923, the contents of the memory address are incremented by 1, and the contents become 3. Then, based on the CD playback command CPY stored at memory address 3, a CD playback instruction is issued to the CD control unit 103. In this case, the playback start timing is as described in 39 above.
This is the beginning of the song cued at step 22. here,
The contents of the memory address are the first memory address 4-1 where the sequence data related to the performance data is stored.
Pointing to the previous memory address. This is because the performer has designated the beginning of the song as the automatic performance start timing. This relationship is similar to the case of 8919 described above.

On the other hand, in the sequencer light mode described above, since there is no need for the performer to play the music on the CD 105 in synchronization with the automatic performance, the performer does not press the playback switch 1021 in advance and stores the sequence data in the automatic performance memory 208. When the writing operation is performed, the CD cue command CTP is not stored in the automatic performance memory 208 (see FIG. 7).
702).

Therefore, in such a case, the determination in 5921 is NO. In this case, since there is no need to reproduce the music on the CDIO 3 during automatic performance, the CD cue instruction 5922 and the CD playback instruction 5923 are not performed. In this case, in 5924, the content of the memory address is reset to O, which indicates one memory address before memory address 1 where sequence data related to performance data is stored. This relationship is based on the above-mentioned 391
This is the same as in case 9.

After the playback instruction is given to the CD player section 100 as described above, 5943-5946→5943
Each time the process 5943 is executed by repeating , the memory address of the automatic performance memory 208 becomes 5919.5.
Sequence data is read from each memory address while being sequentially incremented from the memory address set in the process of 923 or 5924, and an automatic performance operation is executed according to the contents. The increment operation in this case is performed based on the operation of the timer circuit 209, which will be described later.

For example, when the musical instrument control unit 201 reads the key-on command C6N from memory address 6 in FIG. Instructs to start pronunciation.

Conversely, if the musical instrument control unit 201 reads out the key-off command COF from memory address 11 in FIG. Instructs to mute the musical tone.

Furthermore, the operation of incrementing a memory address is realized as follows. That is, the musical instrument control section 201
For example, from memory address 9 in FIG.
When T is read, the next weight data D%
The timer circuit 20 of FIG. 1 or 4 is read out.
The data is set in the weight register 2093 in 9. At the same time, in the timer circuit 209, the timer counter 2092 is reset at the timing of the previous increment of the memory address, as will be described later. Thereafter, the timer counter 2092 in FIG. 4 is sequentially counted up according to the clock from the reference clock generator 2o91.

The output of these timer counters 2092 and the contents of weight data DWT set in the wait register 2093 are compared in a minus number circuit 2094. When the contents match, a signal indicating the match is outputted from the minus number circuit 2094 as the address increment signal INC. This signal is transmitted to the instrument control section 2.
01, and the musical instrument control unit 201 increments the memory address for reading data from the automatic performance memory 208. Further, in the timer circuit 209 of FIG. 4, the address increment signal INC
is the timer counter 209 via the OR circuit 2095
At the same time, the weight register 2093 is reset to prepare for processing for the next weight data 1) wv. Through the above operations, the timing from one performance operation to the next performance operation is measured, and automatic performance is realized.

The above-mentioned automatic performance operation is performed when the sequence data is read out to the last memory address of the automatic performance memory 208 during automatic performance, or when the sequence data is read out from the automatic performance memory 208 during automatic performance.
5944.5945 or 5946, either when the end command Ct (see FIG. 8) is read from 8 or when the player presses the stop switch 2024 (see FIG. 3) of the instrument operation section 202. The process ends when they are detected at .

(in CD mode) Next, the performer selects one of the sequencer play modes, C
The operation when the D priority mode is selected will be explained.

In this case, the musical instrument control section 201 in FIG. 1 is configured as shown in FIG.
Execute the operation flowchart and the judgment of 5901 is YE.
S, and the process proceeds to step 3925 in FIG. 9(b).

At 5925, first, the contents of the memory address are incremented by 1. Now, since the content of the memory address is initially reset to O, this process causes the content of the memory address to become l.

Subsequently, in 5926, it is determined whether a CD cue command CTP is stored at memory address 1 or not.

Now, in the above-mentioned sequencer light mode, in order to play the music on the CD 105 in synchronization with the automatic performance, the performer presses the playback switch 102I in advance and then writes the sequence data to the automatic performance memory 208. When this is done, a CD cue command cyr is stored at memory address 1 of the automatic performance memory 208 as shown in FIG. Therefore, in such a case, the determination in 5926 is YES. On the other hand, in the aforementioned sequencer light mode, the performer synchronizes with the automatic performance and plays CD1.
If the sequence data is written to the automatic performance memory 208 without pressing the playback switch 1021 in advance because there is no need to play the music on 05, the memory address 1 of the automatic performance memory 208 is The cue command CτF is not stored. Therefore, in such a case, the determination in 8926 is NO. In this case,
There is no need to reproduce the music on the CD 105 during automatic performance, and there is no point in setting the CD priority mode, so the process ends without doing anything.

If the judgment of 5925 is YES in the former case, 5
The process advances to 927, where the current memory address 1 is further incremented by 1 and its contents become 2.

Then, in 3928, the CD absolute time data D＾d at the beginning of the song in CDIO3 to be played when automatic performance is performed is read from memory address 2, and the CD＠＠
The information is transferred to section 103. Along with this, the musical instrument control section 201
Instructs the CD control section 103 to locate the beginning of the CD. As a result, the CD control unit 103 controls the optical pickup 107 via the servo circuit 104 to locate the beginning of the music piece on the CD 105 corresponding to the CD absolute time data DAT described above.

Furthermore, in 5929, the contents of the memory address are incremented by 1,
The content is 3. Then, based on the CD playback command CPY stored at memory address 3, a CD playback instruction is issued to the CD control unit 103. This results in
In the CD player section 100, playback of the CD 105 is started from the beginning of the song cued in 5928.

In this state, while playing back the audio data recorded on the CD 105, the performer synchronizes the automatic performance of the electronic keyboard instrument section 200 and sets the timing to start playing the CD.
It can be arbitrarily selected using the fast forward switch 1024 or the fast reverse switch 102s (FIG. 2) of the operation unit 102.

In response, the musical instrument control unit 201, in 5930,
It is determined via the C09118 section 103 whether or not the pause switch 1023 (FIG. 2) of the CD operation section 102 has been pressed. Then, when the performer presses the pause switch 1023 of the CD operation section 102, the CD811171 section 10
The playback of audio data is temporarily stopped by the control in step 3.

Following this, in 5931, the musical instrument control unit 201:
The CD absolute time data DAa at the time of pause is received from the CD control unit 103 and held in a latch circuit (not shown).

Following the above operations, 5932-3933→S934-
In repeating the process 3935-3932, 593
Each time the process 2 is executed, the value of the memory address is incremented by 1, and each time the process 5933 is executed, it is determined whether the content of the above memory address on the 20th day of the automatic performance memory is the key-on command CON. be done.

In the above-described iterative processing, if a key-on command CoN is detected in the process of 5933, the determination is YES and the process proceeds to the process of 5936. At 3936, the memory address where the instruction is stored is incremented by two. This memory address stores CD absolute time data D^1 corresponding to the detected key-on command CGH (for example, memory address 8 in FIG. 8).

Then, at 5937, the CD absolute time data D^D corresponding to the detected key-on command COS is read from the above-mentioned memory address, and it exceeds the CD absolute time data at the above-mentioned latched pause point (large ) is determined. If it does not exceed the limit, the automatic performance memory 208
Since the above memory address has not reached the position corresponding to the timing at the pause point, the process returns to 5932 and the processes from 5932 to 5935 are repeated again, and the next key-on command COS is searched in the automatic performance memory 208. be done.

In addition, in the above-mentioned repeating process, each time the process 5934 is executed, it is checked whether the memory address on the automatic performance memo I 7208 has reached the final address (memory end) or not.
Furthermore, it is determined at each processing step 5935 whether or not the end command Ct (see FIG. 8) has been read out from the automatic performance memory 208. If the determination in 5934 or 5935 is YES, there is no corresponding sequence data on the automatic performance memory 208, so the electronic keyboard instrument section 200 ends the process without doing anything.

In step 5937, if the CD absolute time data DAT corresponding to the key-on command C8H detected from the automatic performance memory 208 exceeds the CD absolute time data at the time of the latched pause, the determination is YES, and the step 59
Proceed to step 38.

5938, the above-mentioned detected CD absolute time data D
AT is held in the aforementioned latch. Note that the contents previously held in the latch circuit are deleted because they are no longer needed.

Subsequently, in 5939, the current memory address is incremented by 3. Through the processing of 5936, this memory address is set to the CD at the pause time, such as memory address 8 in FIG.
CD absolute time data DA that surpassed absolute time data for the first time
It shows the address where T is stored. Therefore, by decrementing this memory address by 3, for example, the 8th
As shown in memory address 5 in the figure, CD absolute time data DA
It points to the address immediately before the address where the key-on command C8H corresponding to T is stored. This process will be explained in 59 below.
This process is for consistency with the process of No. 43. In addition,
This relationship is similar to the case of 3919 described above.

After the above-described operation, in 5940, the musical instrument operation unit 20
Wait until the start switch 2023 (Fig. 3) of No. 2 is pressed.

When the performer presses the start switch 2023, 5940
The determination is YES, and in step 5941, an instruction is given to the CD control unit 103 to play the music on the CD 105.

Following this, the musical instrument control unit 201, in 5942,
The CD control unit 103 receives CD absolute time data sequentially detected from the CD 105 via the subcode signal processing circuit 110, and determines whether or not the data is equal to the contents of the latch described above. This latch contains the automatic performance memory 208 that has passed the pause point for the first time in 8938.
The above CD absolute time data 1) at is held.

After the above operation, each time the process 5943 is executed by repeating steps 5943 to 5946 → 5943, the memory address of the automatic performance memory 208 is changed to 5919.5923 or 5924 in the same manner as in the sequencer priority mode described above. Sequence data is read from each memory address while being sequentially incremented from the memory address set in the process, and an automatic performance operation is executed according to the contents.

As described above, reproduction of audio data that has been in a paused state is restarted, and in synchronization with this, automatic performance can be started from the timing corresponding to the corresponding performance content on automatic performance memory 208.

(1 Adjustment) In the sequencer priority mode or CD priority mode shown above, after the playback of a song on the CD player section 100 and the automatic performance on the electronic keyboard instrument section 200 are synchronized and started from an arbitrary point, the CD The control section 103 and the musical instrument control section 201 are configured to play back the music on the CD 105 and perform automatic performance based on the sequence data in the automatic performance memory 208, independently of each other.

On the other hand, it is also possible to configure the synchronization correction to be performed at any time even after the automatic performance has started. FIG. 10 shows an operational flowchart of the synchronization adjustment process for this purpose. The processing here is executed by the musical instrument control section 201.

That is, the musical instrument control unit 201
After starting the automatic performance operation from 3, automatic performance memory 2
The synchronization adjustment process shown in FIG. 10 can be configured to be executed every time the key-on command COS is read from 08 or every time the key-on command CoN is read a plurality of times (for example, about 5 times).

In FIG. 10, in the 5100I, after the key-on command C0N is first read from the automatic performance memory 208,
The memory address is incremented by 2 and the corresponding CD absolute time data 1) at is read out (see FIG. 8). At the same time, the musical instrument control section 201 receives and receives CD absolute time data sequentially detected from the CD 105 by the CD control section 103 via the subcode signal processing circuit 110. Then, the above-mentioned two CD absolute time data are compared.

If these are equal, no processing is performed, but if they are not equal, the process of 51002 is executed. 51002
Then, the musical instrument control section 201 accesses the CD control section 103 with the CD absolute time data 04 read out from the automatic performance memory 208, and issues a playback instruction at that timing.

Through the synchronization adjustment processing described above, even if the CD 105 is scratched and the playback of a song jumps midway, the automatic performance operation of the electronic keyboard instrument section 200 can always be changed to the automatic performance operation of the CD player section 100. It becomes possible to synchronize with the music playback operation.

(Kekatsu Urasen■) In each of the embodiments shown above, the CD absolute time data 1 is stored in the automatic performance memory 208 in the sequencer light mode.
) At is stored at the timing when the key-on command COS is stored, but in addition to that,
For example, when a command such as a program change (tone change) is stored as sequence data, the CD absolute time data D^a may be stored in synchronization with the timing at which this command is stored. Automatic performance and CD playback can also be synchronized from the change timing. In addition, the CD absolute time data 1) at may be stored in accordance with the timing of various sequence data. Furthermore, instead of the CD absolute time data DAa, a CD song number and CD relative time data can also be used.

Also, if the performer is in sequencer light mode in advance,
Keyboard 202+ (
3) and write the sequence data into the automatic performance memory 208. However, the present invention is not limited to this, and the sequence data may be stored in advance in the user's bit of the subcode of the ROM card or CD. , the sequence data may be transferred to the automatic performance memory 208 during automatic performance. Here, the format, type, etc. of the stored sequence data can also be changed arbitrarily depending on the instrument to be automatically played.

In addition, while the electronic keyboard instrument section 200 was made to perform automatically in accordance with the playback of the music on the CD 105 in the CD player section 100, this is not limited to CD players; If it is a music playback device that can output, DAT (Digital Audio
A tape recorder) etc. can also be used. Note that the data is not limited to time data, and may be data such as address data as long as the timing can be determined.

Further, in the above-mentioned embodiments, an electronic keyboard instrument was used to explain the instrument to be played automatically, but the invention is not limited to this, and examples include, for example, an electronic wind instrument, an electronic guitar, etc.
An electronic musical instrument that does not use a keyboard may also be used.

Furthermore, the above-mentioned automatically performing musical instruments are not limited to electronic musical instruments, but can also be conventional acoustic instruments such as pianos that use sensors to output performance data such as pitch data and velocity data, and perform the automatic performance accordingly. By using a plunger solenoid or the like to press a key, it is possible to automatically play a piano part along with a minus one CD, for example, and play a piano concerto with a feeling similar to a live performance.

〔Effect of the invention〕

According to the present invention, the user (performer) can arbitrarily specify the automatic performance start time on the automatic performance data storage means, and based on this, the automatic performance on the sound source means is started from that point, and It becomes possible to synchronize the playback of audio data on the playback means.

Conversely, the user can specify an arbitrary playback start timing of the audio data while playing the audio data with the playback means, and based on this, the playback means starts playing the audio data from that point, and In synchronization with this, automatic performance by the sound source means can be started.

In this case, since the automatic performance data storage means stores the device data constituted by the recording medium of the playback means, it is possible to ensure synchronization.

Moreover, as a reproduction means, a CD device or the like which is popular for boat fishing can be used as is, there is no need to change the specifications of the recording medium, and there is almost no need to change the hardware. Furthermore, the sound source means can handle this through software processing. Therefore, it is possible to realize a low-cost automatic performance device.

Furthermore, in the present invention, by providing a synchronization correction means,
Even after the playback of audio data and the automatic performance by the sound source device have started, it is possible to make corrections at any time so that the two are synchronized. As a result, even if, for example, there is a scratch on a CD disc and the playback of a song jumps midway, the automatic performance operation on the sound source side will always be replaced by the audio data playback operation on the playback side. It becomes possible to synchronize.

Here, recording of the automatic performance data in the above-mentioned automatic performance data storage means can be supplied by the manufacturer using, for example, a ROM pack, but in the present invention, in particular, by providing an automatic performance data writing means. It is also possible to write automatic performance data based on performance operations performed by the user himself using the performance operation means.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of one embodiment of the present invention, and FIG. 2 is a
Figure 3 is a diagram of the configuration of the CD operating section; Figure 3 is a diagram of the instrument's operating unit; Figure 4 is a diagram of the timer circuit; Figure 5 is a diagram of the frame; Figure 6 is an explanation of CD absolute time. Figure 7 is an operation flowchart of the sequencer light mode, Figure 8 is a data configuration diagram of the automatic performance memory, and Figure 9 (a).
), ■) are operation flowcharts of the sequencer play mode, and FIG. 10 is an operation flowchart of the synchronization adjustment process. DESCRIPTION OF SYMBOLS 100...CD player part, 101...TOCO memory, 102...CD operation part, 103...CD control part, 104...servo circuit, 105...CD. 106...Disc motor, 107, 108, 109, 110, 111, 112. 113, PF), 114. 115. 200 ・ 201 ・ 202 ・ 203 ・ 208 ・ 209 ・ 210 ・ ... optical pickup, ... pickup feed motor, ... demodulation circuit, ... subcode signal processing circuit, ... audio data signal processing circuit, 204 ...・D/A converter, 205...Low pass filter (L) 206...Amplifier, 207...Speaker, ...Electronic keyboard instrument section, ...Musical instrument control section, ...Musical instrument operation section, ...Tone... Generator, ... automatic performance memory, ... timer circuit, ... display section. CO building honorable mention section bridge closure diagram 2

Claims (1)

[Scope of Claims] 1) Sound source means for performing automatic performance based on automatic performance data; Reproducing means for reproducing audio data recorded on a recording medium; and an operation for reproducing the audio data by the reproducing means. position data reading means for sequentially reading out position data indicative of each timing of the audio data being reproduced recorded on the recording medium in synchronization; and storing the automatic performance data, in which case the automatic performance data automatic performance in which the position data indicating the timing of the audio data to be reproduced by the reproduction means in synchronization with the automatic performance by the sound source means based on predetermined automatic performance data is stored together with the predetermined automatic performance data; data storage means; synchronization start point designation means for causing a user to specify a synchronization start time point; Based on the position data and the position data sequentially read out from the position data reading means, instructing the reproducing means to start reproducing the audio data from a timing corresponding to the synchronization start time, and synchronizing with the instruction operation. synchronization control means for sequentially reading out the automatic performance data stored in the automatic performance data storage means starting from the automatic performance data corresponding to the synchronization start time and causing the sound source means to perform automatic performance based on the automatic performance data stored in the automatic performance data storage means; An automatic performance device characterized by: 2) sound source means for performing automatic performance based on automatic performance data; reproducing means for reproducing audio data representing a musical piece recorded on a recording medium; , position data reading means for sequentially reading out position data indicating each timing of the audio data being played back recorded on the recording medium; automatic performance data storage means for storing, together with the predetermined automatic performance data, the position data indicating the timing of the audio data to be reproduced by the reproduction means in synchronization with the automatic performance by the sound source means based on the automatic performance data; and automatic performance start point specifying means for causing a user to specify a position of any of the predetermined automatic performance data on the automatic performance data storage means as an automatic performance start point; reading the position data stored together with the predetermined automatic performance data at the automatic performance start point from the automatic performance data storage means, and instructing the reproducing means to start reproducing the audio data from the timing of the position data; In synchronization with the instruction operation, the automatic performance data stored in the automatic performance data storage means is sequentially read out from the predetermined automatic performance data at the time of starting the automatic performance, and based on the automatic performance data, the sound source means is caused to perform automatic performance. An automatic performance device comprising: a synchronization control means; 3) sound source means for performing automatic performance based on automatic performance data; reproducing means for reproducing audio data representing a piece of music recorded on a recording medium; , position data reading means for sequentially reading out position data indicating each timing of the audio data being played back recorded on the recording medium; automatic performance data storage means for storing, together with the predetermined automatic performance data, the position data indicating the timing of the audio data to be reproduced by the reproduction means in synchronization with the automatic performance by the sound source means based on the automatic performance data; and an arbitrary playback start timing of the audio data,
a playback start point specifying means for causing a user to specify while the audio data is being played back by the playback means; search the automatic performance data storage means for position data exceeding the above, and then instruct the playback means to start playing the audio data from the playback start timing, and read out the audio data sequentially from the position data reading means after the start of playback. At a timing when the position data retrieved coincides with the retrieved position data, the automatic performance data stored in the automatic performance data storage means are sequentially changed from the predetermined automatic performance data corresponding to the retrieved position data. An automatic performance device characterized by comprising: a synchronization control means for causing the sound source means to perform an automatic performance based on the read information. 4) The automatic performance device according to claim 1, 2 or 3, further comprising a performance operation means for causing a user to perform a performance operation, and a performance operation means for causing a user to perform a performance operation using the performance operation means in accordance with the reproduction of the audio data by the reproduction means. the performance information outputted from the performance operation means in response to the performance operation is sequentially written as the automatic performance data into the automatic performance data storage means in synchronization with the performance operation, in which case the predetermined automatic performance data writing means for writing the position data read from the position data reading means into the automatic performance data storage means together with the predetermined automatic performance data at a timing when automatic performance data is written. The automatic performance device according to claim 1, 2 or 3. 5) After the synchronization control means starts reproducing the audio data in the reproducing means and starts automatic performance in the sound source means, the position data sequentially read out from the position data reading means and from the automatic performance data storage means. sequentially comparing the position data read out sequentially;
Claim characterized in that it further comprises synchronization correction means for correcting the reproduction timing of the audio data in the reproduction means based on the timing of the position data read from the automatic performance data storage means when they do not match. 1,
The automatic performance device according to 2, 3 or 4. 6) The automatic performance device according to claim 1, 2, 3, 4, or 5, wherein the reproducing means is either a compact disc player or a digital audio tape recorder. 7) The position data is time data indicating an elapsed time from a recording start point of the audio data recorded in a subcode of the compact disc player or digital audio tape recorder. The automatic performance device described.