JPH03188496A - Automatic player - Google Patents

Abstract

PURPOSE:To finish both playing and playback actions when automatic playing is finished by specifying automatic playing starting and finishing times on an automatic playing data storage means, and starting the automatic playing from the automatic playing starting time and playback in synchronization with it, simultaneously. CONSTITUTION:The timing of starting the automatic playing can be selected by the UP and DOWN switches 2025 and 2026 of a musical instrument operating part 202 while a display part 210 is observed, from automatic playing memory 208. Further, a player selects the timing of finishing the automatic playing and decides the selected contents with a B switch 2028. When the automatic playing is started from the timing decided by an A switch 2077, the playback of a musical piece on a CD 105 can be started in synchronization with it, and synchronous playing is carried out till the timing decided by the B switch 2028. Thus, a musical instrument is automatically played in synchronization with the playback of a musical piece from an arbitrary playback starting time to an arbitrary playback finishing time.

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, to use a recording medium that is popular for boat fishing with normal specifications, and furthermore, to It is possible to play a song in synchronization with automatic performance up to an arbitrary automatic performance end point, and conversely, it is possible to play a song in synchronization with automatic performance from an arbitrary playback start point to an arbitrary playback end point. [Means for Solving the Problems] The present invention aims to make it possible to automatically perform the above-mentioned musical instruments and to repeat the reproduction of the music a specified number of times. First, it has 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 having 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 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 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.

The apparatus further includes automatic performance start point designation means for allowing 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.

Similarly, the automatic performance end point specifying means is provided for allowing the user to specify the position of any predetermined automatic performance data on the automatic performance data storage means as the automatic performance end point.

Then, the position data stored together with the predetermined automatic performance data at the automatic performance start point designated by the automatic performance start point designation means described above is read out from the automatic performance data storage means, and the audio data from the timing of the position data is read out. The player instructs the playback means to start playback, and in synchronization with the instruction, reads out the 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 automatically controls the sound source means based on the readout automatic performance data stored in the automatic performance data storage means. After the automatic performance is performed by the sound source means based on the predetermined automatic performance data at the automatic performance end point specified by the automatic performance end point specifying means, the reproducing means instructs the reproducing means to end the reproduction of the audio data. It has a synchronization control means for giving an instruction and terminating the automatic performance by the sound source means in synchronization with the instruction operation.

In the above configuration, instead of the above-mentioned automatic performance start point designation means, automatic performance end point designation means, and synchronization control means, the following playback start point designation means, playback end point designation means, and synchronization control means are provided. It can also be configured as

That is, the playback start point designation means allows the user to specify an arbitrary playback start timing of the audio data while the audio data is played back by the playback means.

Similarly, the playback end point specifying means allows the user to specify an arbitrary playback end timing of the audio data while the audio data is being played back by the playback means.

The synchronization control means is configured to first exceed each position data read out from the position data reading means at each of the playback start timing and playback end timing specified by the playback start point specifying means and the playback end point specifying means.
and second position data on the automatic performance data storage means. Next, the synchronization control means instructs the reproducing means to start reproducing the audio data from the timing of the first position data, and synchronizes with the instruction operation the automatic performance data stored in the automatic performance data storage means. are sequentially read out from predetermined automatic performance data corresponding to the first position data, and the sound source means is caused to perform automatic performance based on the read data. Furthermore, the synchronization control means instructs the reproducing means to end the reproduction of the audio data after the automatic performance by the sound source means based on the predetermined automatic performance data corresponding to the second position data is executed;
The automatic performance by the sound source means is ended in synchronization with the instruction operation.

In addition to any of the above configurations, the present invention can be configured to include a repetition number designation means that allows the user to designate the number of repetitions of the reproduction of audio data by the reproduction means and the automatic performance by the sound source means synchronized therewith. . in this case,
The synchronization control means controls the operation from the start to the end of playback of the audio data in the playback means and from the start to the end of automatic performance in the sound source means synchronized therewith for the number of repetitions specified by the repetition number designation means. repeat.

Furthermore, in addition to the configuration described above, the following performance operation means and automatic performance data writing means can be provided.

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, each position data read from 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 the present invention, after the synchronization control means starts reproducing 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 the position data sequentially read out from the automatic performance data storage means The synchronization correction means sequentially compares the read position data 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 can also be configured as

[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, each position data read from the position data reading means is written together with the above-mentioned predetermined automatic performance data 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.

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. Similarly, the automatic performance end point can be specified by the automatic performance end point designation means. Based on this, the synchronization control means can start automatic performance on the sound source means from the automatic performance start point, and can also cause the reproduction means to start reproducing audio data in synchronization with this. The synchronization control means can terminate both operations at the time when the automatic performance ends. As described above, these controls are 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 time and playback end time on the playback means side. That is,
For example, the user can specify an arbitrary playback start timing of the audio data by using the playback start point specifying means while the audio data is being played back by the playback means. Similarly, the playback end timing can be specified by the playback end point specifying means. Based on this, the synchronization control means can start the playback of audio data on the playback means from the playback start timing, and can also start automatic performance on the sound source means in synchronization with this. Then, the synchronization control means can terminate both operations at the reproduction end timing. As described above, these controls are 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, in the present invention, the user can specify the number of times the above-described playback and automatic performance operations are to be repeated using the repetition specifying means.

Furthermore, if the above-mentioned synchronization correction means is provided, even after the playback of audio data by the playback means and the automatic performance by the sound source have started, correction can be made at any time so that the two are synchronized.

〔Example〕

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

(Structure) FIG. 1 is a block diagram showing the overall circuit configuration of an electronic keyboard instrument and an automatic performance device including 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 the holder 7 section (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 1021 not only instructs normal CD playback, but also instructs playback in CD priority repeat mode, which will be described later. The stop switch 102□
Instructs to stop playback. The pause switch 1023 is C
In the D priority repeat mode, specify the range in which the CD is played. The fast forward switch 1024 and the fast reverse switch 1025 move the playback range in the same <CD priority repeat mode. r□, ~ “9J numeric keypad 102
6 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.

The servo circuit 104 also performs focus servo and tracking servo for the optical pickup 107 that irradiates each trunk of the CD 105 with a laser beam. The focus servo described above detects a focus error from the state of the reflected light of the laser beam, and controls and drives the objective lens in the optical pickup 107 in the optical axis direction based on the focus error. In addition, the tracking servo moves the optical pickup 107 in the radial direction by the pickup feed motor 108 while detecting the deviation of the laser beam from the center of the track of the CD 105, and also detects the deviation of the laser beam from the center of the track of the CD 105. For fast movement, the optical pickup 107 itself is made to follow the track, and the laser beam irradiated from the pickup is controlled so as to accurately irradiate the center of the track on 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 the input audio data to an internal RAM (not particularly shown), performs error correction processing based on the Reed-Solomon code, and performs deinterleaving processing. Each sample of 16-bit digital audio data is output to the D/A converter 112 in frame units.

A D/A converter 112 and an LPF (low pass filter) 113 having a cutoff frequency of 1/2 of the sampling frequency 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. Then, the restored subcode is output to the CD control H section 103.

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

As shown in FIG.
021, mode selection switch 202□, start switch 2023, stop switch 2024, UP switch 202s, DOWN switch 2026, A switch 2027, B switch 2028 and number key 2029
has. These will be described later.

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

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 1/2 of the 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 section 210 displays key data DK'l at the time of automatic performance start and end in the sequencer priority repeat mode, as will be described later.

(Format on CD 105) Next, the recording format of digital data on CD 105 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 11
1 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, up to 10 days' worth of frames) are dispersed and recorded on a CD disc, 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. That is, in the above-described error correction using parity words, it is generally not possible to correct data errors within one frame when the number of bits exceeds a certain number. In particular, on CD discs, large data errors tend to concentrate locally due to scratches, dirt, etc., and simply recording/playing back consecutive audio data samples does not add the above parity word. However, it is often impossible to correct it. Therefore, by executing the loss increment as described above, it is possible to disperse the concentrated errors of the audio data 503 and 505 on the CD disc during playback, and it is possible to easily perform error correction using parity words. can. In this way, the audio data 503, 505 recorded on the CD 105 of FIG. 1 by the cross-increp method is reproduced by 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 incremented together 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 "l" 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 one of logical "1" or "O" does not continue for a long time in the consecutive bits, and 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 CD 105, but the innermost area (with a diameter of 46 mm to 50 mm)
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 of each TOC includes information from the start time T of the program area to the timing Tls Tz of each head part in the program area, as shown in FIG. T,・
A CD that represents the elapsed time until ... with an accuracy of l/75 seconds.
Contains absolute time data.

In FIG. 1, when the CD 105 is set in the CD player section 100, the CD 8111 section 103 is inserted into the servo circuit 1.
The lead-in area of the CD 105 is accessed by controlling the disc motor 106 and optical pickup 107 via the CD 04. 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 Figure 5), which is each person's song data
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 1775 seconds.
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 2+ to 1026, CD
The player section 100 can be operated as a normal CD player. Furthermore, by selecting the normal mode using the mode changeover switch 2022 of the musical instrument operation section 202 in FIGS. 1 and 3, it is possible to cause the electronic keyboard instrument section 200 to perform performance operations as a normal electronic keyboard instrument. can.

In addition, the performer can play the CD1 in the CD player section 100.
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 2022 (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 selects the sequencer priority repeat mode, which is one of the sequencer play modes, using the mode changeover switch 2022 of the instrument operation section 202.
The following actions can be performed. That is, the performer determines the timing to start automatic performance among the performance contents stored in the automatic performance memory 208 by pressing the UP switch 202s or DOW switch of the instrument operation unit 202 while looking at the display unit 210 (FIG. 1).
It can be selected with the N switch 202& (Fig. 3). This selection can be confirmed by pressing the A switch 2027 (FIG. 3). Furthermore, the performer can similarly select the timing to end the automatic performance, by pressing the B switch 202m.
(Figure 3) allows you to confirm your selection. Furthermore, the number of times the range is to be repeated automatically can be determined using the numeric keys 2°29 (Fig. 3). Then, the performer presses the start switch 2023 (FIG. 3) of the instrument operation section 202 to perform the above-mentioned A.
When automatic performance starts from the timing determined by the switch 2027, the playback of the song can be started from the timing corresponding to the audio data on the CD 105 in synchronization with the automatic performance, and the synchronous performance continues until the timing determined by the B switch 202 described above. can be done. This control is performed using the CD absolute time data stored in the automatic performance memory 208 together with the key-on command. Then, this synchronized performance is performed using the above-mentioned number keys 202. It can be repeated a specified number of times. Note that it is also possible to perform only the automatic performance operation without reproducing the CD 105.

Further, the performer can perform the following operations by selecting the CD priority repeat 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 electronic keyboard instrument section 2.
Set the timing to synchronize and start the automatic performance of
While reproducing the audio data recorded on the D105, an arbitrary selection can be made by operating the fast-forward switch 1024 or the fast-reverse switch 1025 of the CD operation section 102, and then pressing the pause switch 1023 (FIG. 2). This selection can be confirmed with the A switch 202 (FIG. 3). Subsequently, the audio data is played again from the pause point, and this allows the performer to synchronize and determine the timing to end the automatic performance of the electronic keyboard instrument section 200.
You can select it in the same way as when selecting the starting point. This selection can be confirmed with the B switch 20211. Further, as in the sequencer priority repeat mode, the number of repeats can be determined using the numerical keys 2029.

After that, the start switch 2023 of the instrument operation section 202
(Fig. 3), the above-mentioned A switch 20
The playback of the audio data is restarted from the timing determined in step 27, and in synchronization with this, automatic performance can be started from the corresponding timing of the corresponding performance content on the automatic performance memory 208, and the above-mentioned B switch 2
Synchronized performance can be performed up to the timing determined in step 028, and it can be repeated a specified number of times. This control also
As in the case of the sequencer priority repeat mode, the C
D is performed using absolute time data.

Each operation of the sequencer write mode, sequencer priority repeat mode, and CD priority repeat 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 CDI 05 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.
26, you want to playback in synchronization with automatic performance.
Select a song on the D105, then press the playback switch 102
Press Otori (see Figure 2). At this time, in the CD player section 100, the CD control section 103 accesses the TOC memory 101 and reads out the song number data and CD absolute time data of the song corresponding to the number on the numeric keypad 1026. CDl1] controller 103 controls the servo circuit 10
4, and controls the optical pickup 107 through a CD-ROM corresponding to the CD absolute time data described above.
Move to the position above 105. As a result, the selection of songs on the CD 105 is performed. In addition, the CD control section 10
3 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 CDlIn unit 103 starts the operation flowchart of FIG. 7.

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

When the start switch 2023 is pressed, the next
, press the playback switch 102 of the CD operation section 102 in advance.
It is determined whether or not 1 is pressed (S702).

If the performer presses the playback switch 102+ 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 crt is written to memory address 1 of the automatic performance memory 208 as shown in FIG. Also, in the same memory address 2, CDwII
CD absolute time data I)A indicating the beginning of the song to be played in synchronization with the automatic performance sent from the I part 103
t is written as shown in FIG. Furthermore, a CD playback command cpv is also written to memory address 3 as shown in FIG. 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
At 00, the CDIIJ control section 103 drives the disk motor 106 via the servo circuit 104. As a result, the audio data of the music piece selected in advance by the performer is read out from the CD 105 via the optical pickup 107, the demodulation circuit 109, and the audio data signal processing circuit 111, and is read out from the D/A converter 112 to the LPF 113. , are reproduced from the speaker 115 via the amplifier 114.

The performer uses the keyboard 202I 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 a wait command Cut and wait data I) wy, and a key-on command CON and key data I) xv.
, key-off command COF, key data Dxv, CD absolute time data DAT, etc.

In FIG. 8, the wait instruction C-D has the weight data D1. This is a command to wait the execution of the next performance data for the time indicated by +d, and the wait data DWT is generated in the timer circuit 209 of FIG. 1 or 4. Every time the performance operation described above is executed, a reset signal R3T is input from the musical instrument control unit 201 to the timer counter 2092 via the OR circuit 2095 in FIG. 4, and the counter is reset. After this, the timer counter 209
2 is counted up according to the clock from the reference clock generator 209I. Then, the musical instrument control section 201 takes in the count output of the timer counter 209□ at the time of inputting the next performance data as wait data D-1, writes it into the automatic performance memory 208, and again.
The timer counter 2092 is reset by the reset signal R3T. Through the above operations, the time from one performance operation to the next performance operation is measured, and the weight data I)
It is stored in the automatic performance memory 208 as wt. Here, the wait instruction CWT and wait data D at memory address 4 in FIG. 7 indicates the time from when the player presses the start switch 2023 of the musical instrument operation section 202 to when the player performs the first key operation.

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 I)Kv.

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 D11.

Furthermore, CDIIJ? The i1 unit 103 stores the CD absolute time data DAT detected from the CD 105 at that time every time a key-on operation is performed.
3 and writes the key data D+tv to the next memory address following the key-on command C8N.

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 3708, an end command CE is written in the automatic performance memory 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, 3706
The determination becomes YES, and the sequencer write mode is forcibly terminated.

Regarding the above operation, if the performer does not press the playback switch 102I in advance because there is no need to play the music on the CD 105 in synchronization with automatic performance, 57
The determination of 02 becomes NO.

As a result, the CD cue command CT P %, the CD absolute time data DAT indicating the beginning of the song, and the CD playback command CPY are not written to the automatic performance memory 208, and no playback instruction is issued to the CD player unit 100. and,
The process jumps to step 5705, and only the operation of writing the sequence data into the automatic performance memory 208 is executed. In addition, in 5705, the CD for each key-on command CoN described above is
Absolute time data DAT is also not written to automatic performance memory 208. This operation corresponds to the operation of writing automatic performance data in a conventional electronic musical instrument with an automatic performance function.

After the above-mentioned automatic performance data writing operation (in the scener beat mode), the operation when performing an automatic performance operation will be explained.

First, the operation when the performer selects the sequencer priority repeat 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 of ~(C).

First, the performer selects the timing to start automatic performance from among the performance contents stored in the automatic performance memory 208 as shown in FIG. and the DOWN switch 2026 (FIG. 3) and the display section 210 of FIG. 1 are used to arbitrarily select. This operation is realized as the processes 5901 to 5914 in FIG. 9(a).

First, in 5901, it is determined whether or not 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 5901 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 and advances to the memory address where the next key-on command COS is stored. That is, at 5902, the automatic performance memory 208
The memory address is incremented by +1 until the key-on command COW is detected in step 5903.

When the key-on command CON is detected, the determination in 3903 is Y.
ES, the current memory address is incremented by 1 in 3908, and the key data I)rv stored in the next memory address in the automatic performance memory 208 where the key-on command COW is stored is read out. This key data I)+rv is then displayed on the display section 210 in FIG. Thereby, the player can recognize the key data DKV on the automatic performance memory 208 that is currently being specified.

Subsequently, in 5909, the memory address is further incremented by 1, and in 5910, it is determined whether or not CD absolute time data D^τ exists at that memory address. In the aforementioned sequencer light mode, the performer presses the playback switch 1021 in advance and then writes the sequence data into the automatic performance memory 208 in order to play the music on the CDIO 3 in synchronization with the automatic performance. In this case, as shown in FIG. 8, CD absolute time data DAT is stored in the automatic performance memory 208 at the memory address next to (key data I) xy following each key-on command C8H. Therefore, in such a case, the determination of 5910 is Y
It becomes ES.

As a result, in 5911, the CD absolute time data DAT corresponding to the weight data [)wi currently displayed on the display section 210 is read from the automatic performance memory 208 and transferred to the CD control section 103. At the same time, 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 section 103 controls the optical pickup 107 from the servo circuit 104, and reads the above-mentioned CD absolute time data D^. The position on the CD 105 corresponding to the first page is located.

On the other hand, in the aforementioned sequencer light mode, 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 the sequence data is written into the automatic performance memory 208 without pressing , the CD absolute time data DAT is not stored in the automatic performance memory 208. Therefore, in such a case, the determination in 5910 is NO. In this case, since there is no need to reproduce the music on the CD 105 during automatic performance, the process in step 5911 is not performed.

After the above-described operation, in step 5912, a value obtained by subtracting the current memory address by 3 is held in a buffer (not shown) in the musical instrument control section 201. Now, the contents of the current memory address indicate the memory address where the CD absolute time data DA next to the key data DKV following the key-on command CoN is stored by the processing in steps 5903 to 5909 described above. Therefore, the contents of the buffer obtained by subtracting this value by 3 are:
It points to one memory address before the position of the key-on command CoH specified by the performer. The meaning of this will be explained later.

Next, at 5913, the A switch 202? of the musical instrument operation section 202 is pressed. It is determined whether or not (FIG. 3) has been pressed, and if it has not been pressed, the process returns to step 5901 again.

Regarding the above-described operation, if it is determined in step 3901 that the UP switch 2025 (FIG. 3) of the musical instrument operation section 202 is not pressed, the determination becomes NO and the process proceeds to step 5904.

In step 5904, it is further determined whether the DOWN switch 202b (FIG. 3) of the musical instrument operation section 202 has been pressed.

When the DOWN switch 2026 is pressed, the determination in 5904 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 the OS is stored. That is, the memory address of the automatic performance memory 208 is incremented by -1 at 5906, and the memory address is repeatedly decremented until the key-on command C0N is detected at 5907. Note that if the memory address becomes 0 as a result of being decremented, the process jumps to step 5913 without being decremented any further.

When the key-on command CON is detected, the determination in 5907 becomes YES, and from then on, the above-mentioned UP switch 202
In the same way as when s is pressed, the operations 5908 to 3911 are executed, the display operation of the decremented memory address, and the repeat memory A1 of the CD absolute time data I) At are performed.
A storage operation, an operation of decrementing the memory address by 3, and a detection operation of the A switch 2027 are 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 20 days is incremented or decremented, allowing the player to move the automatic performance start point to a desired position.

The above operation is performed by the A switch 2027 of the musical instrument operation section 202.
(Fig. 3) is pressed and the process is repeated until the determination at 5913 becomes YES. In addition, the start switch 2023
While none of the DOWN and DOWN switches 2026 are pressed, the processing loop of 5901-3904→5913→5901 is repeated until any switch is pressed.

As described above, after the performer operates the UP switch 2025 or the DOWN switch 2026 to move the automatic performance start point to a desired position, the instrument operation unit 20
By pressing the No. 2 A switch 2027 (FIG. 3), the determination in 5913 becomes YES, and the process proceeds to 5914.

At 5914, the contents of the current memory address are stored in the repeat memory A2 (not shown) in the musical instrument control section 201 of FIG. Here, the content of the memory address is determined by the above-mentioned process 3912 to the location 1 of the key-on command COH on the automatic performance memory 208 specified by the player.
Pointing to the previous memory address. As a result, the memory address at the start of automatic performance is determined.

Next, the performer arbitrarily selects the timing to end the automatic performance from among the performance contents stored in the automatic performance memory 208 as shown in FIG. do. This process is performed in step 5 of FIG. 9(a).
This is realized as the processing from 915 to 5929.

First, the performer presses the UP switch 20 of the instrument operation section 202.
By operating the 25 or DOWN switch 202& (Fig. 3), the key-on command CON is searched on the automatic performance memory 208 and its memory address is incremented or decremented.
15 to 5921 are executed. Each of these processes is almost the same as the processes 5901 to 5907 in the case of the specified operation at the time of starting the automatic performance described above. However, 5
If it is detected in 919 that the memory address has become 0, the process jumps to 5925, where an error message "Input error, reset" is displayed, and then the process from 5915 is repeated again. This is because the memory address cannot be O since the automatic performance start point has already been specified.

Next, each time the above memory address movement is performed, 5
Processing at 922 is executed. Here, the content of the moved memory address is +1 to the content of repeat memory A2.
It is determined whether the value exceeds the specified value. Now, as mentioned above, the repeat memory A2 is pointing to the location one memory address before the key-on command COH on the automatic performance memory 208 at the time when the automatic performance instructed by the performer starts, so the contents added by 1 are , is the memory address where the key-on command CON on the automatic performance memory 20B at the time of starting the automatic performance instructed by the performer is stored. Since the memory address specified as the end point of automatic performance cannot exceed the memory address specified as the start point of automatic performance, the determination in 5922 is No.
In this case, an error will be displayed at 5925, and 5915 will be displayed again.
Repeat the process from.

If the determination in 5922 is YES, the process advances to 3923, where the process in 390 in the case of the specified operation at the automatic performance start point described above is performed.
8, the current memory address is incremented by 1, the key data I) It is displayed on the display section 210 in the figure.

Subsequently, in 5924, it is determined whether the B switch 202i (FIG. 3) of the musical instrument operation section 202 has been pressed, and if it has not been pressed, the process returns to 5915 again.

As described above, after the performer operates the UP switch 2025 or the DOWN switch 2026 to move the automatic performance end point to a desired position, the instrument operation section 20
By pressing the No. 2 B switch 202g (FIG. 3), the determination at 5924 becomes YES.

Then, similarly to 5919 at 5926 in FIG. 9(b),
It is determined whether the content of the memory address is O or not.

This is the UP switch 202. and DOWN switch 2
026 (Figure 3) was not pressed even once, and the judgments of 5915 and 5918 were both N.

This is a process for cases where 591
Same as 9.

Next, in step 5927, the value of the current memory address is incremented by 1. Now, the memory address is the memory address (
(See FIG. 8), by incrementing it by 1, it becomes the memory address where the key-on command CON in the automatic performance memory 208 designated as the end point of the automatic performance is stored.

Furthermore, in 5928, similarly to 5922, it is determined whether the contents of the memory address exceed the value of repeat memory A2 +1. This is a process for when the UP switch 2025 and the DOWN switch 2026 (Fig. 3) are not pressed even once and the determinations in 5915 and 5918 are both NO, and the meaning is the same as in 5922. be.

After the above operations, in 5929, the contents of the current memory address are stored in the repeat memory B (not shown) in the musical instrument control section 201 of FIG. Here, the contents of the memory address are determined by the above-mentioned process 5927, and the key-on command C6 on the automatic performance memory 208 specified by the performer is
Points to the memory address where H is stored. As a result, the memory address at the end of the automatic performance is determined.

After specifying the start and end points of the automatic performance as described above, the performer then specifies the number of times the automatic performance is to be repeated within that range.

This process is realized by the processes 5930 and 5931 in the ninth round).

First, at 5930, "1" to "1" of the musical instrument operation section 202
Wait for any of the 9J number keys 2029 (Figure 3) to be pressed.

If any of the numeric keys 202 . The number data corresponding to is stored in a repeat memory C (not shown) in the musical instrument control section 201.

Through the above-described processing, the number of repetitions of automatic performance is specified.

After the above series of operations, the performer presses the start switch 2023 (FIG. 3) of the musical instrument operation section 202 to perform the automatic performance operation on the electronic keyboard instrument section 200 and the CD player section as follows. A synchronous playback operation at 100 is performed.

That is, when the start switch 2023 is pressed, 5
932 becomes YES, and then, in 5933, the contents of the repeat memory A2, that is, the memory address one memory address before the position of the key-on command CoN on the automatic performance memory 208 at the automatic performance start point instructed by the performer, are stored in the memory address. The value is set.

Additionally, at 5934, it is determined whether the current memory address points to zero.

If the current memory address is not 0, the determination at 5934 is NO and the process advances to 5935.

In step 5935, the contents of the memory address are incremented by 3, and as a result, the contents of the memory address are set to the CD associated with the key-on command COH on the automatic performance memory 208 at the time of starting automatic performance.
This shows the address where the absolute time data DAy is stored (see FIG. 8).

Then, at 5936, the CD is stored at that memory address.
It is determined whether absolute time data DAT exists.

In the aforementioned sequencer light mode, the performer presses the playback switch 1021 in advance and then writes the sequence data into the automatic performance memory 208 in order to play the music on the CDIO 3 in synchronization with the automatic performance. In this case, CD absolute time data DAT is stored in the automatic performance memory 208 at the memory address next to the key data DKY following each key-on command COH, as shown in FIG. Therefore, in such a case, the determination in 5936 is YES.

As a result, in 5937, the CD absolute time data DAT related to the key-on command CoH on the automatic performance memory 208 at the time of starting the automatic performance is read from the memory address and transferred to the CD control section 103. At the same time, 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 section 103 controls the optical pickup 107 from the servo circuit 104 to cue the position on the CD 105 corresponding to the above-mentioned CD absolute time data DAT.

Following this, in 5938, CD! IJ Gobe 103
An instruction is given to play the music on the CD 105. In this case, the playback start timing is synchronized with the automatic performance start point instructed by the player as described above.

After the above-described operation, in 5939, the contents of repeat memory A2 are set to the memory address again. As described above, this content indicates one memory address before the position of the key-on command COH on the automatic performance memory 20B at the time of starting the automatic performance specified by the player. The reason for setting the value one memory address earlier in this manner is to ensure consistency with the processing of 5946, which will be described later.

On the other hand, in the aforementioned sequencer light mode, 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 the sequence data is written into the automatic performance memory 208 without pressing , the CD cue command CTP is not stored in the automatic performance memory 208 (see FIG.
702).

Therefore, in such a case, the determination in 3936 is NO. In this case, since there is no need to reproduce the music on the CDIO 3 during automatic performance, the CD reproduction instructions in 5937 and 5938 are not performed.

Regarding the above-described operation, if the current memory address is 0 when the contents of the repeat memory A2 are set to the memory address in 8933, the determination in 5934 becomes YES, and the process proceeds to 5940, as described above. In the case of,
The player presses the mode changeover switch 20 on the instrument operation section 202.
After selecting the sequencer priority repeat mode with 22, the UP switch 2025 and the DOWN switch 2 are also pressed.
If you press A switch 2027 without pressing 026, or if you press UP switch 2025 several times and then press DOWN switch 2026 the same number of times, 5905
This is either the case where the determination is YES.

At 5940, the current memory address is incremented by 1 and 59
41, a CD cue command CT is sent to that memory address.
It is determined whether P exists or not.

The current memory address is 0, so adding 1 to it changes its contents to 1.

Now, as with the 5936, in the sequencer light mode mentioned above, the performer can synchronize with the automatic performance and play the CD.
To play the music on 05, press the playback switch 1.
When writing sequence data into the automatic performance memory 208 after pressing 02I in advance, a <CD cue command CTP is stored at memory address 1 of the automatic performance memory 208 as shown in FIG. Therefore, in such a case, the determination in 5941 is YES. As a result, at 5942, 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 I)at indicating the beginning of the song to be played along with the automatic performance stored as shown in FIG. A CD cue instruction is given to 103. Further, in 5943, the contents of the memory address are incremented by 1, and the contents become 3. and,
CD playback command cpv stored in memory address 3
Based on CD! A CD playback instruction is given to the II control section 103. The playback start timing in this case is the beginning of the music piece cued in 3942 described above. Here, the content of the memory address indicates one memory address before the first memory address 4 where sequence data related to performance data is stored. This is because the performer has designated the beginning of the song as the starting point for automatic performance. This relationship is similar to the case of 3939 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 CTF is not stored in the automatic performance memory 208 (see FIG. 7).
702) Therefore, in such a case, the determination in 5941 is NO. In this case, the CDI
Since there is no need to play back the music on O3, the CD cue instruction 5943 and the CD playback instruction 5942 are not performed. In this case, at 5945, the contents of the memory address are reset to zero. This content indicates one memory address before memory address 1 where sequence data related to performance data is stored. This relationship is
This is similar to the case of 5939 mentioned above.

As described above, after a playback instruction is issued to the CD player section 100, each time the process of 3946 is executed by repeating steps 5946 and 5947, the memory address of the automatic performance memory 208 is changed to 5939.5944 or Sequence data is read from each memory address while being sequentially incremented from the memory address set in the process of 5945, 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 instrument control unit 201 reads the key-on command CON from memory address 6 in FIG. 8, it further reads the next key data I) Instructs to start pronunciation.

Conversely, when the musical instrument control unit 201 reads out the key-off command C8F 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 DW
Read T and use the timer circuit 209 in FIG. 1 or 4.
The data is set in the wait register 2093 in the memory. At the same time, in the timer circuit 209, the timer counter 2092 is reset at the timing of the previous memory address increment, as will be described later.

Thereafter, the timer counter 2092 in FIG. 4 is counted up sequentially according to the clock from the reference clock generator 2091.

The output of the timer counter 2092 and the contents of the weight data I) wy set in the weight register 2093 are compared in a minus number circuit 2094. Then, when the contents match, the - number circuit 2094
A signal indicating a match is output as an address increment signal INC. This signal is output to the musical instrument control section 201-, and the musical instrument control section 201 increments the memory address for reading data from the automatic performance memory 208. Also, in the timer circuit 209 of FIG. 4, the address increment signal I
NC is an OR circuit 209. timer counter 2 via
092 and wait register 209
3 and prepares for processing the next weight data DklT. Through the above operations, the timing from one performance operation to the next performance operation is measured, and automatic performance is realized.

The above-described one-time automatic performance operation ends when the memory address of the sequence data exceeds the value of repeat memory B, the determination in step 5947 becomes YES. In other words, since repeat memory B points to the memory address where the key-on command COW in the automatic performance memory 208 at the end of the automatic performance instructed by the performer is stored, the process up to this key-on command CON is executed in step 3946. After that, the first automatic performance ends.

Next, in 5948, the contents of repeat memory C are -
1 will be given. The repeat memory C stores the number of repetitions of automatic performance specified by the performer, and this content is decremented by 1 each time one automatic performance is completed.

After the above-described operation, in 5949, the CD control unit 103
An instruction is issued to stop the playback operation.

This ends the CD playback operation for the time being.

Note that this process is not executed when the electronic keyboard instrument section 200 performs an automatic performance operation without performing a reproduction operation on the CD player section 100.

Next, at 5950, the contents of repeat memory C are
It is determined whether or not it has become. The contents of the repeat memory C are decremented by 1 each time one automatic performance is completed in the process of 3948 described above.

If this content is not O, the determination of 5950 is N.
0, and the process returns to step 5933 again. As a result, the synchronous automatic performance process is repeated as described above.

Then, when the content of repeat memory C reaches O, 5
The determination at step 950 becomes No, and the sequencer priority repeat mode processing ends.

(CD I Repeat Mode) Next, the operation when the performer selects the CD priority repeat 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.
) to (C) are executed.

At 51001, first, the contents of the memory address are incremented by 1. Now, since the contents of the memory address are initially reset to 0, this process changes the contents of the memory address to 1.

Then, at 51002, the CD is stored at memory address 1.
It is determined whether or not the cue command c-P is stored. 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 102+ in advance and then writes the sequence data to the automatic performance memory 20B. If so, the eighth CD cue command CTP is stored at memory address l of the automatic performance memory 208. Therefore, in such a case, 51002
The determination is YES. On the other hand, in the aforementioned sequencer light mode, the performer can play a CD in synchronization with the automatic performance.
If the writing operation of the sequence data to the automatic performance memory 208 is performed without pressing the playback switch 102+ in advance because there is no need to play the music on the playback switch 105,
No CD cue command CTP is stored in memory address 1 of the automatic performance memory 208. Therefore, in such a case, the determination in 31002 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 repeat mode, so the process ends without doing anything.

If the determination of 51002 is YES in the former case,
Proceed to 51003 and the current memory address 1 is further +1
The content becomes 2.

Then, in 51004, the CD absolute time data DAT at the beginning of the music piece on the CD 105 to be played when automatic performance is to be performed is read from the memory address 2 and transferred to the CD control section 103. Along with this, the musical instrument control section 20
1 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.

Further, at 31005, 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. As a result, the CD player section 100 starts playing the CD 105 from the beginning of the song cued in step 51004.

In this state, the performer synchronizes the automatic performance of the electronic keyboard instrument section 200 to start playing the music on the CD 105 (hereinafter simply referred to as playback start timing).
While reproducing the audio data recorded on CD 105, press the fast forward switch 1024 or the fast reverse switch 1025 of the CD operation section 102, and then press the pause switch 1.
Any selection can be made by pressing 023 (Fig. 2).

In response, the musical instrument control section 201 determines in step 51006 via the CD control 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, CDIIJ? i1 part 103
03 - Playback of audio data is temporarily stopped.

Next, in 51007, the performer uses the instrument operation section 202
A switch 202? (Fig. 3) is waited for, and when the A switch 2027 is pressed, the determination becomes YES. As a result, the playback start timing instructed by the performer in the above-described operation is determined.

Subsequently, in step 31008, the musical instrument control section 201 receives the CD absolute time data DAa at the pause point from the CD control section 103, and holds it in a latch circuit (not shown).

Following the above operations, 51009-3IOIO-310
11-4 In repeating the process from S1012 to 51009, the value of the memory address is incremented by 1 each time the process 51009 is executed, and the content of the memory address on the automatic performance memory 208 is increased each time the process 51010 is executed. It is determined whether or not it is a key-on command CoN.

In the above-mentioned repeated processing, if a key-on command C0,i is detected in the processing of 5IOIO, the determination is YES.
Therefore, the process proceeds to step 31015 in FIG. 10(b). 5
At 1015, the memory address where the instruction is stored is incremented by two. This memory address contains CD absolute time data DA corresponding to the detected key-on command COS.
T is stored (for example, memory address 8 in Figure 8).
).

Then, at 51016, the detected key-on command COH
The CD absolute time data DAT corresponding to is read from the above-mentioned memory address, and it is determined whether it exceeds (is larger than) the CD absolute time data at the time of the above-mentioned latched pause. If it does not exceed the automatic performance memory 20
Since the memory address above 8 has not reached the position corresponding to the timing at the pause point, the process returns to 31009 and the processes from 51009 to 31012 are repeated again, and the further key-on command CON is stored in the automatic performance memory 208.
is searched.

In addition, in the above-mentioned repeated processing, each time the processing of 51011 is executed, it is determined whether the memory address on the automatic performance memory 208 has reached the final address (memory end) or not.
Furthermore, it is determined at each processing step 31012 whether or not the end command CE (see FIG. 8) has been read out from the automatic performance memory 208.

If the determination in 5IOII or 31012 is YES, there is no corresponding sequence data in the automatic performance memory 208, so an error message "Manual error, please reset" is displayed in 51013, and the memory address is reset to 0 in 51014. After that, the process returns to step 31001 again and the player is asked to input the playback start timing again.

At step 31016, if the CD absolute time data DAT corresponding to the key-on command COH detected from the automatic performance memory 208 exceeds the CD absolute time data at the time of the aforementioned latched pause, the determination is YES, and step 5
The process advances to step 1017.

At 31017, the above-mentioned detected CD absolute time data D^d is stored in the repeat memory A1 (not shown) in the musical instrument control section 201.

Subsequently, at 51018, the current memory address is decremented by 3. This memory address indicates the address where the CD absolute time data DAT that exceeds the CD absolute time data at the pause point at the playback start timing for the first time is stored, for example, memory address 8 in FIG. 8, by the processing of 5lot5. ing. Therefore, this memory address is -3
This indicates the address immediately preceding the address where the key-on command COW corresponding to the CD absolute time data D^D is stored, such as memory address 5 in FIG. 8, for example. This process is a process to ensure consistency with the process of 51041, which will be described later. Note that this relationship is similar to the above-mentioned 3912
The same is true for .

The contents of this memory address are stored in the repeat memory A2 in the next step 31019. As a result, the memory address of the playback start timing is determined.

Subsequently, at 31020, an instruction to play the music on the CD 105 is issued to the CD control unit 103, and the audio data is played again from the above-mentioned pause point. This allows the performer to select the timing to synchronize the automatic performance of the electronic keyboard instrument section 200 and end the playback of the music on the CD 105 (hereinafter simply referred to as the playback end timing) in the same way as when selecting the start point. .

This process is realized by the processes 31021 to 51033, and is almost the same as the processes 51006 to 5IO19 in the case of the above-described operation of instructing the playback start timing by the performer.

However, after processing 51023 corresponding to 3100B, C
An instruction is given to the D control unit 103 to stop playing the music on the CD 105. This will temporarily stop playing the song.

Also, before the processing of 51026 corresponding to 51009,
The process 51025 is executed and the contents of the memory address are incremented by 1 in advance. Therefore, the contents of the memory address are incremented by 2 by the processes 31025 and 51026. Now, 5
Before the process of 1025, the contents of the memory address point to the memory address immediately before the key-on command CoN of the playback start timing designated by the performer (see 31018). Therefore, 5102
5 and 31026, the content of the memory address becomes the address next to the memory address where the key-on command CoN at the playback start timing is stored (31
(See explanation of 01B). This prevents the key-on command C0N, which is the same as the key-on command COS at the playback start timing, from being detected in the process 51027. Such a state may occur, for example, when the performer presses the pause switch 1023 very instantaneously after resuming playback of the music on the CD 105 through the process 31020.

Furthermore, automatic performance memory 20 at the playback end timing
Since it is not necessary to hold the CD absolute time data DAT corresponding to the key-on command CGH above 8, the process corresponding to 31017 is not executed after the process 31031 corresponding to 31016.

After processing 31031 corresponding to 51016, 5103
At 2, the contents of the current memory address are decremented by 2.

The memory address now indicates the address where the CD absolute time data DAT that exceeds the CD absolute time data at the pause point at the playback end timing for the first time is stored by the process 31030 (corresponding to SIO15). Therefore, by decrementing this memory address by 2, C
Key-on command COS corresponding to D absolute time data D^D
This is the address where is stored.

After the above operations, in step 51033, the contents of the memory address are stored in the repeat memory B (not shown) in the musical instrument control section 201. Here, as described above, the contents of the memory address store the key-on command C8H corresponding to the CD absolute time data DAT that exceeds the CD absolute time data at the pause point at the playback end timing specified by the performer for the first time. pointing to an address. As a result, the memory address of the playback end timing is determined.

After specifying the playback start timing and playback end timing as described above, the performer then specifies the number of times the automatic performance is to be repeated within that range. This process is realized by the processes 51034 and 51035 in FIG. 10 Φ), and is the same as the processes 5930 and 5931 in the sequencer priority repeat mode described above. As a result, the number of repeats of automatic performance is set in a repeat memo IJC (not shown) in the musical instrument control section 201.

After the above series of operations, the performer presses the start switch 2023 (FIG. 3) of the instrument operation section 202 to perform the synchronized playback operation in the CD player section 100 and the synchronized electronic An automatic performance operation in the keyboard instrument section 200 is executed.

That is, when the start switch 2023 is pressed, 5
The determination at 1036 is YES, and then at 51037 the contents of the repeat memory A1 are read out. This content is CD absolute time data DAT read from the automatic performance memory 208 corresponding to the playback start timing (see S1017).

In the continuation <31038, the CD absolute time data DAT is transferred to the CD control unit 103, and the CDI! A CD cue instruction is given to the I control section 103. From this point on, on the CD player section 100 side, the position on the CDIO 3 corresponding to the above-mentioned CD absolute time data I) At is searched.

Further, at 31039, an instruction is given to the CD control unit 103 to play back the music on the CD 105.

The reproduction start timing in this case is a timing synchronized with the reproduction start timing instructed by the performer as described above. In this case, automatic performance memory 2 is set at 31038.
Since cueing is performed using the CD absolute time data I) At stored in CD 105, strictly speaking, it differs from the playback start timing on the CD 105 specified by the performer, but there is almost no difference in listening performance.

Thereafter, at 51040, the contents of repeat memory A2 are set to the memory address. As described above, this content indicates one memory address before the position of the key-on command COH on the automatic performance memory 208 at the time of starting playback specified by the player.

After the above operation, in the same manner as in the sequencer priority repeat mode described above, each time the process of 5IO41 is executed by repeating steps 51041 and 51042 in FIG. 10(C), the memory address of the automatic performance memory 208 is changed. , 51040, sequence data is read out from each memory address while being sequentially incremented, and automatic performance is executed according to the contents.

The operation for one automatic performance described above is similar to the sequencer priority repeat mode, when the memory address of the sequence data exceeds the value of repeat memory B, the 510
The determination in step 42 becomes YES and the process ends. In other words, repeat memory B is the CD that exceeds the CD absolute time data at the pause point at the playback end timing specified by the performer for the first time.
Key-on command CON corresponding to D absolute time data D^D
indicates the address where the key-on command CON is stored, and after the key-on command CON is executed in the process of 31041, the first automatic performance ends.

Thereafter, in 31043, as in the case of 3948, the contents of the repeat memory C are decremented by 1 each time one automatic performance is completed.

After the above operation, in 51044, as in the process of 5949, an instruction to stop the playback operation is issued to the CD control unit 103, and in 31045, as in the process of 5950, it is determined whether the contents of the repeat memory C have become 0 or not. It is determined whether or not. If this content is not 0, the determination in 51045 becomes No, and the process returns to 31037, where the synchronous automatic performance process is repeated, and when the content of repeat memory C becomes 0, the determination in 31045 becomes No. It turned out to be no,
The CD priority repeat mode process ends.

In the sequencer priority repeat mode or CD priority repeat mode described above, the playback of a song on the CD player section 100 and the automatic performance on the electronic keyboard instrument section 200 are synchronized from the moment the performer selects it. After the CD! starts, the CD! The n section 103 and the musical instrument 1111 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 during automatic performance. FIG. 11 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 section 201 performs the operation at 894 in FIG. 9(C).
6 or after starting the automatic performance operation from 81041 in FIG. In addition, it can be configured to execute the synchronization adjust process shown in FIG.

In FIG. 11, at 31101, the key-on command CON is first read out from the automatic performance memory 208, and then
The memory address is incremented by 2 and the corresponding CD absolute time data DAT 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 CD811111 section 103 via the subcode signal processing circuit 11O. 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 processing of Sl 102 is executed. 3110
2, the musical instrument control unit 201 performs CD@ with the CD absolute time data D^d read out from the automatic performance memory 208.
The controller 103 is accessed and a reproduction instruction is given 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.

(Blood Summer Disaster ■) In each of the embodiments shown above, the automatic performance repeats,
Although the case has been described in which the repeating is performed between two points set by the performer, it may also be repeated from the beginning of the song to an arbitrary set point, or from an arbitrary set point to the end of the song. Also, after a certain song is automatically played while playing one song,
A specific refrain portion specified by the performer may be repeated. In addition, various repeat patterns can be set. Of course, these can also be selected programmatically.

On the other hand, in the above embodiment, the CD absolute time data DAT is stored in the automatic performance memory 208 in the sequencer light mode.
When storing the key-on command COS, it is stored at the timing when the key-on command COS is stored, but in addition to this, when a command such as a program change (tone change) is stored as sequence data, this is stored. The CD absolute time data D^d may be stored in accordance with the timing. This allows automatic performance and CD playback to be synchronized from the program change timing. In addition, the CD absolute time data DAT may be stored in accordance with the timing of various sequence data.
Instead of T, 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.

In addition, the above-mentioned musical instruments that perform automatically are not limited to electronic musical instruments, but can also be applied to conventional acoustic instruments such as pianos, which use sensors to output performance data such as pitch data and velocity data, and respond accordingly. By using a plunger solenoid or the like to press a key, for example, the piano part can be automatically played along with a minus one CD, making it possible to 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 and automatic performance end time on the automatic performance data storage means, and based on this, the automatic performance in the sound source means can be started from the automatic performance start time. When the performance starts, it becomes possible to start playing the audio data on the playback means in synchronization with the start of the performance. Both operations can be ended at the end of the automatic performance.

Conversely, the user can specify any playback start timing and playback end timing of the audio data while playing the audio data with the playback means, and based on this, the playback of the audio data on the playback means starts from the playback start timing. At the same time, the automatic performance by the sound source means can be started in synchronization with this. Then, both operations can be ended at the reproduction end timing.

In this case, since each position data read from the recording medium of the reproduction means is stored in the automatic performance data storage means, synchronization can be achieved reliably.

Further, according to the present invention, the user can specify the number of times the above-described playback and automatic performance operations are to be repeated using the repetition specifying means, which facilitates the operation.

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).
) to (C) are operation flowcharts of sequencer priority repeat mode, and Figure 10 (a) to (C) are CD priority repeat mode.
-)' (7) Operation Flowchart FIG. 11 is an operation flowchart of the synchronization adjustment process. 100...CD player section, 101...ToC memory, 102...CD operation section, 103...CD control section, 104...servo circuit, 105...CD. 106... Disc motor, 107... Optical pickup, 108... Pickup feed motor, 109... Demodulation circuit, 110... Subcode signal processing circuit, 111/112. 113, PF), 114. 115. 200 ・ 201 ・ 202 ・ 203 ・ 208 ・ 209 ・ 210 ・ ... Audio data signal processing circuit, 204 ... D/A converter, 205 ... Low pass filter (L 206 ... Amplifier, 207 ...・Speaker, ・・Electronic keyboard instrument section, ・・Instrument control section, ・・Instrument operation section, ・・Tone generator, ・・Automatic performance memory, ・・Timer circuit, ・・Display section.

Claims (1)

[Scope of Claims] 1) 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; and Reproducing means 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 played back recorded on the recording medium in synchronization with a playback operation; Among the 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 predetermined automatic performance data is stored together with the predetermined automatic performance data. automatic performance data storage means; automatic performance start point designation 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 time; and said automatic performance data storage means. automatic performance end point specifying means for causing a user to specify a position of any of the predetermined automatic performance data as the automatic performance end point; The position data stored together with the automatic performance data is read from the automatic performance data storage means, the reproduction means is instructed to start playing the audio data from the timing of the position data, and the reading the automatic performance data stored in the automatic performance data storage means in order from the predetermined automatic performance data at the automatic performance start time, causing the sound source means to perform automatic performance based on the automatic performance data, and the automatic performance end point specifying means After the automatic performance is executed by the sound source means based on the predetermined automatic performance data at the end point of the automatic performance specified by,
An automatic performance device comprising: synchronization control means for instructing the reproduction means to terminate reproduction of the audio data and for terminating automatic performance on the sound source means in synchronization with the instruction operation. 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 an arbitrary playback start timing of the audio data,
a playback start point specifying means for causing a user to specify an arbitrary playback end timing of the audio data while playing the audio data with the playback means;
a playback end point specifying means for causing a user to specify while the audio data is being played by the playback means; and at each of the playback start timing and the playback end timing specified by the playback start point specifying means and the playback end point specifying means. Searching the automatic performance data storage means for first and second position data that first exceed each position data read from the position data reading means, and reproducing the audio data from the timing of the first position data. instructing the reproducing means to start, and in synchronization with the instruction operation, sequentially reading out the automatic performance data stored in the automatic performance data storage means, starting from the predetermined automatic performance data corresponding to the first position data. Based on this, the sound source means performs automatic performance, and after the sound source means performs automatic performance based on the predetermined automatic performance data corresponding to the second position data, the reproduction of the audio data is terminated. An automatic performance device comprising: synchronization control means for instructing the reproduction means and terminating the automatic performance by the sound source means in synchronization with the instruction operation. 3) a repetition number designation means for causing a user to specify the number of repetitions of reproduction of the audio data by the reproduction means and automatic performance by the sound source means synchronized therewith; It is characterized by repeating the operation from the start of reproduction of the audio data to the end of reproduction, and from the start of automatic performance to the end of automatic performance in the sound source means synchronized therewith, for a number of repetitions specified by the repetition number designation means. Claim 1 or 2
The automatic performance device described. 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.