JP2753640B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic performance device that performs an automatic performance according to a music to be reproduced by a recording medium such as a CD.

[Conventional technology]

In recent years, automatic performances using electronic musical instruments and the like have been actively performed, but not only automatic performances, but also automatic performances in accordance with music playback of music tapes and compact discs (hereinafter abbreviated as CDs). If possible, it would be possible to enjoy more complex and diverse music, for example, by playing an orchestra CD of minus one format, in which only the performance of a specific instrument was omitted, and synchronizing the instrument with an automatic instrument.

As a technique for synchronizing the automatic performance of an electronic musical instrument with the music to be played, conventionally, sequence data that is performance information is used as MIDI data so that the electronic musical instrument or the like performs automatic performance, and a special time code is added to the MIDI data. , For example MI
Minute / Second by DI quarter frame message /
There is one that stores frame information, sequentially reads out this time code, and synchronizes the SMPTE signal of the MTR (tape recorder).

[Problems to be solved by the invention]

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

In addition, SMPTE
There is a problem that signals need to be recorded in advance and special specifications are required.

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

An object of the present invention is to make it possible to reliably synchronize with a simple configuration, to enable a commonly used recording medium to be used with normal specifications, and to start automatic performance of a musical instrument from the middle. It is therefore possible to make it possible to play back a music piece in synchronism with the playing of music, and conversely to make it possible to automatically play a musical instrument in synchronization with playing back a music piece from the middle.

[Means for solving the problem]

The present invention first has a sound source means for performing an automatic performance based on automatic performance data. This means, for example, PCM method,
An electronic keyboard instrument, an electronic stringed instrument, an electronic wind instrument, and the like having a sound source of a waveform modulation method, an overtone addition method, an overtone subtraction method, or the like. An acoustic instrument having a function of performing an automatic performance based on the automatic performance data may be used. Note that the sound source means may be connected to the outside of the main body via an interface such as MIDI. Here, the automatic performance data is data output from the musical instrument when the user plays the electronic musical instrument, for example, for example, a key-on command and key data, a key-off command and key data, and a weight having time timing such as key-on and key-off. These are a command and weight data, an end command for instructing the end of the automatic performance, and the like. In addition, a command such as a program change for instructing a tone change may be included.

Next, there is provided a reproducing unit for reproducing the audio data recorded on the recording medium. The means is, for example, a compact disk player or a digital audio tape recorder. In this case, the audio data may be, for example, minus one data including music other than a specific performance part, or data of a normal music.

Also, there is provided position data reading means for sequentially reading position data indicating each timing of the audio data being reproduced recorded on the recording medium in synchronization with the operation of reproducing the audio data by the reproducing means. Here, the position data is, for example, time data indicating an elapsed time from the recording start time of the audio data recorded in the subcode of the compact disk player or the digital audio tape recorder. The position data reading means is realized, for example, as a part of the function of the compact disk player or the digital audio tape recorder, and is a means for sequentially outputting time data corresponding to the reproduction of the audio data.

Subsequently, there is provided automatic performance data storage means for storing the above-mentioned automatic performance data. In this case, the means indicates the timing of audio data to be reproduced by the reproducing means in synchronization with predetermined automatic performance data of the above-mentioned automatic performance data, for example, an automatic key-on operation of the sound source means by a key-on command. The position data is stored together with the above-mentioned predetermined automatic performance data.

Further, there is provided a synchronization start time designation means for designating a synchronization start time to the user. The means is realized, for example, as an automatic performance start time designation means for allowing a user to designate a position of arbitrary predetermined automatic performance data on the automatic performance data storage means as an automatic performance start time. Alternatively, for example, an arbitrary reproduction start timing of the audio data is realized as a reproduction start point designation means for designating the user while reproducing the audio data by the reproduction means.

Then, in accordance with the designated operation at the start of synchronization, based on the position data stored in the automatic performance data storage means, or on the basis of the position data and the position data sequentially read from the position data reading means, the above-mentioned synchronization is performed. Instructs the reproduction means to start reproducing audio data from the timing corresponding to the start time, and automatically reproduces the automatic performance data stored in the automatic performance data storage means in synchronization with the instruction operation. , And a synchronization control means for causing the sound source means to perform an automatic performance on the basis of the sequentially read out sound data. The means reads, from the automatic performance data storage means, the position data stored together with the predetermined automatic performance data at the automatic performance start time point designated by the automatic performance start time point designation means, for example. Instructs the reproducing means to start the reproduction of the audio data, reads out the automatic performance data stored in the automatic performance data storage means in order from the predetermined automatic performance data at the start of the automatic performance in synchronization with the instruction operation, and generates a sound source based on the data. It is realized as a means for causing the means to perform an automatic performance. Alternatively, at the reproduction start timing designated by the reproduction start time designation means described above, the position data that first exceeds the position data read from the position data reading means is searched in the automatic performance data storage means, and thereafter, the position data from the reproduction start timing is searched. Instructing the reproducing means to start the reproduction of the audio data, and the position data sequentially read out from the position data reading means after the start of the reproduction is stored in the automatic performance data storing means at a timing coincident with the searched position data. The automatic performance data is read out from the predetermined automatic performance data corresponding to the searched position data in order, and the sound source means performs the automatic performance based on the data.

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

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

In addition, the user is caused to perform a performance operation by the performance operation means in accordance with the reproduction of the audio data by the reproduction means, and the performance information output from the performance operation means in response to the performance operation is synchronized with the performance operation as automatic performance data. The automatic performance data is sequentially written in the automatic performance data storage means. In this case, at the timing when the predetermined automatic performance data is written, the 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 data writing means.

Further, in addition to the above configuration, the position data sequentially read out from the position data reading means after the start of reproduction of audio data by the reproduction means by the synchronization control means and the start of automatic performance by the sound source means; A synchronous correction means for sequentially comparing the position data read from the automatic performance data storage means and correcting the reproduction timing of the audio data by the reproduction means at the timing of the position data read from the automatic performance data storage means. You may comprise so that it may have.

[Action]

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

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

Further, contrary to the above-described operation, the reproduction means can also designate the reproduction start point. That is, the user can specify an arbitrary reproduction start timing of the audio data by, for example, the reproduction start time specifying means while reproducing the audio data by the reproduction means. Based on this, the synchronization control means can start the reproduction of the audio data by the reproduction means from that point in time, and can start the automatic performance by the sound source means in synchronization with the reproduction. This control
As described above, the processing is performed based on the position data stored together with the predetermined automatic performance data in the automatic performance data storage means and the position data sequentially read out from the position data reading means.

In addition to the above operation, if the above-mentioned synchronization correction means is provided,
Even after the reproduction of the audio data by the reproduction means and the automatic performance by the sound source means have been started, correction can be made at any time so that the two are synchronized.

〔Example〕

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

<< Configuration >> FIG. 1 is a block diagram showing the overall circuit configuration of an electronic musical instrument according to one embodiment of the present invention, and an automatic performance device provided with a CD player.

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

First, the block configuration of the CD player unit 100 will be described.

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

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

Next, 102 is a CD operation unit. FIG. 2 shows the configuration of the CD operation unit 102. Playback switch 102 ₁ is generally for other reproduction instruction CD, also performs reproduction instruction of the CD priority mode to be described later. Stop switch 102 ₂ instructs to stop the CD playback. Pause switch 102 ₃ specifies when to start playing the CD in the CD priority mode. Fast forward switch 102 ₄ and rewind switch 102 _5, like to move at the time to start playing the CD priority mode. Numeric keypad 102 ₆ of "0" to "9", to specify a track number when performing the playback.

Next, returning to FIG. 1, the CD control unit 103 is, for example, a microprocessor and controls the entire CD player unit 100. The sub code signal processing circuit 110, the musical instrument control unit 201, and the TOC memory Exchange various data with 101 etc. When driving the CD 105, the servo circuit 104
Then, a drive control signal is output.

The servo circuit 104 controls the number of rotations of the disk motor 106 that drives the CD 105 to rotate so as to control the linear velocity of each track of the CD 105 to be constant.

The servo circuit 104 performs focus servo and tracking servo of the optical pickup 107 that irradiates each track of the CD 105 with a laser beam. The focus servo 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, tracking
The 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. , Let the optical pickup 107 itself follow the truck,
The laser beam emitted from the pickup is a CD
This control is performed so that the center of 105 tracks is accurately irradiated.

Here, a projection called a pit is engraved on the side of the CD 105 on which the laser beam is irradiated.
PCM signal (digital signal) is recorded. And
The optical pickup 107 detects the presence or absence of a pit based on the amount of reflected light of the irradiated laser beam, and demodulates an electric signal corresponding to the presence or absence of the pit and its length.
Output to 109.

The demodulation circuit 109 detects a frame synchronization signal from the electric signal output from the optical pickup 107, identifies a delimiter and an order of each audio data and subcode described later, and further, performs an EFM modulation (described later) in each frame. Done 1
The 4-bit digital data (sub code, audio data, etc.) is demodulated and converted to 8-bit digital data. Then, of the digital data subjected to the EFM demodulation, the audio data is converted to an audio data signal processing circuit.
The sub code is input to the sub code signal processing circuit 110.

The audio data signal processing circuit 111 writes the input audio data into an internal RAM (not shown), performs error correction based on a code called Reed-Solomon code, and performs de-interleave processing. Then, 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 the speaker 115.

The sub-code signal processing circuit 110 performs error detection and correction processing and de-interleaving processing on the sub-code described later in the same manner as the audio data signal processing circuit 111, and restores the sub-code. Then, it outputs the restored subcode to CD control section 103.

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

Instrument operating section 202, as in FIG. 3, another keyboard 202 _1, the mode selector switch 202 _2, the start switch 202 _3, the stop switch 202 _4, UP switch 202 ₅ and the DOWN switch 202 ₆
Having. These will be described later.

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

The tone generator 203 outputs a tone signal based on the performance data from the tone control unit 201, and then the tone signal is input to the 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 tone signal from the tone generator 203 into
Convert to analog music signal. Then, the converted output is emitted to the outside via the amplifier 206 and the speaker 207.

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

The display unit 210 displays the key data _DKY at the start of the automatic performance in the sequencer priority mode, as will be described later, although not particularly shown.

<< Recording Format on CD 105 >> Next, a recording format of digital data on the CD 105 will be described.

When recording / reproducing digital data on CD, 2
One important operation is performed. That is, error correction and modulation (and demodulation).

Here, error correction refers to C
FIG. 1 shows a process for correctly correcting a data error occurring due to a defect in a recording medium, a tracking error of the optical pickup 107, or a poor focus when reading digital data recorded in D. In the audio data signal processing circuit 111.

Modulation is when digital data is handled on a certain medium.
This refers to a process of converting the waveform of an electric signal suitable for recording and reproduction on the medium. When digital data is recorded on the CD 105 in FIG. 1, a modulation method called EFM modulation described later is adopted. The demodulation is a process for restoring the original digital data from the modulated signal read from the medium, that is, the CD 105, and is executed by the demodulation circuit 109 in FIG.

Depending on the above two operations, error correction and modulation,
The recording format of digital data on the CD 105 is determined. FIG. 5 shows a storage 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 a sync pattern (synchronous pattern) 501 and a subcode 5 are sequentially recorded from the head of each frame.
02, audio data 503, parity word 504, audio data 505, and parity word 506 are arranged.

Parity words 503 and 506 are audio data 503 and 5
05 is a code added to correct the data error 05 on a frame-by-frame basis. The audio data signal processing circuit 111 uses the parity words 504 and 506 to make a discrimination during reproduction by the CD player unit 100 in FIG. By doing so, data errors in each frame are automatically corrected.

Here, the audio data 503 and 505 recorded in one frame in FIG. 5 do not record samples of audio data that are continuous in time, but the order of each sample is changed according to a method of cross interleaving. Audio data in a plurality of continuous frames (for example, a maximum of 108 frames) is dispersedly recorded on a CD board, and is rearranged in the original order according to the same rule at the time of reproduction. The reason why such processing is performed is as follows. That is, in the above-described error correction using the parity word, in general, when the data error in one frame exceeds a certain number of bits, the correction cannot be performed. In particular, in the case of CD discs, large data errors tend to be concentrated in part due to scratches, dirt, and the like. Therefore, simply recording / reproducing continuous audio data samples continuously adds the parity word. Often, they cannot be corrected. Therefore, by performing the cross interleaving as described above, the audio data 50
Concentration errors on the 3,505 CD disk can be dispersed at the time of reproduction, and error correction using parity words can be easily performed. As described above, the audio data 50 recorded on the CD 105 in FIG.
3 and 505 are the audio data signal processing circuit 111 of FIG.
Is reproduced by a process completely opposite to that at the time of recording.

Note that the parity words 504 and 506 correspond to the audio data 50.
3, 505 interleaved with
2, only that part is interleaved independently.

Next, EFM modulation will be briefly described. Generally, it is not known at what probability the logic "1" and the logic "0" of each bit of the digital data having the configuration as shown in FIG. 5 occur. Then, the optical pickup 107 shown in FIG.
When digital data is detected as an electric signal from the upper bits, if one of the logic "1" or "0" continues for a long time, a DC component is generated, and the bit interval information is interrupted. Here, in the above-described focus servo and tracking servo operations in the servo circuit 104 of FIG. 1, a signal called an error signal is generated and used. The error signal is an optical pickup 107 which is a main signal.
From the output of If this error signal contains a large amount of low frequency components, especially DC components, it becomes difficult to perform stable servo control. In addition, the demodulation circuit 109 in FIG. 1 first generates a synchronization clock from the output of the optical pickup 107 and performs digital data reproduction processing. However, if the information of the bit interval is interrupted as described above, This clock cannot be generated. Therefore, in order to remove such DC components as much as possible, CD10 is generally used.
When recording is performed on 5, the modulation called EFM modulation is performed. Although details of the EFM modulation are omitted, digital data to be recorded on the CD 105 is subjected to data conversion so that one of logic “1” or “0” does not continue for a long time in consecutive bits, and is recorded on the CD 105. You. In this way,
In order to reproduce the EFM modulated signal recorded on the CD 105 in FIG. 1, a demodulation process reverse to the above-mentioned modulation process may be performed, and this process is performed by the demodulation circuit 108 in FIG.

Here, the sync pattern 501 itself in FIG. 5 is not interleaved and modulated, but is added last after performing interleaving and modulation when recording digital data on the CD 105. The pattern is a signal for synchronizing the frame shown in FIG. 5 at the time of demodulation by the demodulation circuit 10108, that is, a signal for identifying the start of the frame.
A pattern that never occurs in 2 to 506 is used.

Next, as digital data recorded on the CD 105,
In addition to the audio data 503 and 505 in FIG. 5, there is control data called a subcode. In the following, the role of the subcode will be described with reference to FIG. 6 showing 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, and the innermost area (area having a diameter of 46 mm to 50 mm) is called a lead-in area. As part of the subcode for this area (502 in Fig. 5), the TOC (Table of Content
Information corresponding to the table of contents of all songs recorded on one CD, called s), is recorded. The index information of each song TOC, in addition to the track number data indicating the number of each music piece, as in FIG. 6, the timing of the beginning of each music in the program area from the start T ₀ of the program area T ₁ , T ₂ ,
T ₃ elapsed time until ... expressed in 1/75 seconds of precision, CD
Contains absolute time data.

In FIG. 1, when the CD 105 is set in the CD player unit 100, the CD control unit 103 controls the disk motor 106 and the optical pickup 107 via the servo circuit 104 to access the lead-in area of the CD 105. Furthermore, the CD control unit 10
3 is the TOC of the lead-in area, the optical pickup 10
7. Read out from the demodulation circuit 109 via the subcode signal processing circuit 110 and store it in the TOC memory 101.

Next, in the program area following the lead-in area, the audio data (FIG. 50) which is the music data of each music among the data recorded in the frame unit of FIG.
In addition to 3 and 505), as part of the subcode (Fig. 5 502), expressed the time elapsed from the start T ₀ of the program area to the point of playing on 1/75 second precision, CD The absolute time data is included (see FIG. 6).

In this embodiment, as described later, the CD control unit 103 shown in FIG.
During the performance of the CD, the optical pickup 107 and the demodulation circuit 109 read the CD absolute time data at 1/75 second intervals via the subcode signal processing circuit 110 to control time information at each performance timing. ing.

<< Schematic Operation of the Embodiment >> Next, the schematic operation of the embodiment will be described below.

The performers 102 ₁ to ₁ of the CD operation unit 102 shown in FIGS.
02 ₆ by using the respective switches, CD players 100
Can be operated as a normal CD player. Further, by selecting the normal mode by the mode change-over switch 202 ₂ of the instrument operating unit 202 of FIG. 1 and FIG. 3, to carry out the performance operation of the conventional electronic keyboard instrument to the electronic keyboard instrument section 200 Can be.

In addition, the player can cause the electronic keyboard instrument unit 200 to perform an automatic performance operation in synchronization with the operation of reproducing each music piece of the CD 105 in the CD player unit 100.

First, the player selects the sequencer light mode with the mode changeover switch 202 ₂ (FIG. 3) of the musical instrument operating section 202, and the player operates the musical instrument operating section in accordance with the music reproduction operation in the CD player section 100. 202 keys 202 ₁ (3rd
The contents of the performance performed using the
Can be stored. In this case, every time the key-on operation of the key is performed, the musical instrument control unit 201 of FIG.
Receives the CD absolute time data at that point from 03 and automatically plays the performance data corresponding to the key-on.
To memorize.

Next, the player, by selecting the sequencer priority mode, one of the sequencer play mode by the mode change-over switch 202 ₂ of the instrument operating section 202, perform the following operation. That is, the player is the timing for starting the automatic performance of the music contents stored in the automatic performance memory 208, UP switch 202 ₅ and DOWN switch 202 ₆ (FIG. 3) of the instrument operating section 202, and FIG. 1 Can be arbitrarily selected by using the display unit 210 of. When the performer starts automatic performance from the selected timing by using the start switch 202 ₃ (FIG. 3) of the musical instrument operation unit 202, the performer starts synchronizing the automatic performance with the corresponding timing of the audio data on the CD 105. Playback can be started. This control is performed using the CD absolute time data stored in the automatic performance memory 208 together with the key-on command. It should be noted that only the automatic performance operation can be performed without performing the reproduction of the CD 105.

Furthermore, the player, by selecting the CD priority mode, one of the sequencer play mode by the mode change-over switch 202 ₂ of the instrument operating section 202, perform the following operation.
That is, the player, while playing the audio data recorded in CD105, the timing of starting to synchronize the automatic performance of the electronic keyboard instrument section 200, fast forward switch 102 ₄ or early in the CD operation section 102 switches 102 ₅ (Fig. 2)
Can be arbitrarily selected using. Then, the player, press the pause switch 102 ₃ of CD operation unit 102, after pausing the playback of audio data, the instrument operation unit 202
By pressing the start switch 202 ₃ (Fig. 3)
When the reproduction of the paused audio data is resumed, the automatic performance can be started from the corresponding timing of the corresponding performance content in the automatic performance memory 208 in synchronization with the reproduction. This control is also performed using the CD absolute time data stored together with the key-on command in the automatic performance memory 208, as in the sequencer priority mode.

Hereinafter, each operation of the sequencer write mode, the sequencer priority mode, and the CD priority mode will be sequentially described in detail.

<< Operation in Sequencer Write Mode >> First, the operation in the sequencer write mode will be described. 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, which will be described below with reference to these drawings.

First, the player selects the sequencer light mode with the mode changeover switch 202 ₂ (FIG. 3) of the musical instrument operation unit 202.

Next, the player performs the following operation in order to reproduce the music on the CD 105 in synchronization with the automatic performance. That is, the player, by the numeric keypad 102 ₆ CD operation unit 102, and music selection music on CD105 you want to play in synchronization with the automatic performance, followed by advance press the play switch 102 ₁ (see FIG. 2). At this time, in the CD player unit 100, C
D controller 103 accesses the TOC memory 101, a numeric keypad 102 ₆
The song number data and the CD absolute time data of the song corresponding to the number are read. Then, the CD control unit 103
Control the optical pickup 107 through the optical pickup 1
07 is moved to a position on the CD 105 corresponding to the above-described CD absolute time data. As a result, the selection of the music on the CD 105 is started. Further, the CD control unit 103 outputs the CD absolute time data read from the TOC memory 101 to the musical instrument control unit 201. In this state, the operation of reproducing the audio data is not performed yet.

On the other hand, when it is not necessary for the player to reproduce the music on the CD 105 in synchronization with the automatic performance, the player does not perform the operation on the CD operation unit 102 described above.

After the above operation, the CD control unit 103 starts the operation flowchart of FIG.

First, in S701, whether the start switch 202 ₃ of the instrument operating section 202 has been pressed it is monitored.

When the start switch 202 ₃ is pressed, then in S702, whether or not pre-playback switch 102 ₁ of CD operation unit 102 is pressed is determined (S702).

Performer, in order to perform the reproduction of the music on CD105 in synchronization with the automatic performance, if you press the playback switch 102 ₁ in advance, S702 the determination is YES, the process proceeds to S703.

In S703, the memory address 1 of the automatic performance memory 208
Then, the CD start command _CTP is written as shown in FIG. Further, similarly to the memory address 2, pre-CD is synchronized with the automatic performance has been transmitted from the control unit 103 indicates the head of the music to be reproduced CD absolute time data D _AT is written as Figure 8. Further, a CD reproduction command C _PY is similarly written into the memory address 3 as shown in FIG. These functions will be described later.

Next, in S704, a CD playback instruction is issued to the CD control unit 103. Thus, in the CD player unit 100, the CD control unit 103 drives the disk motor 106 via the servo circuit 104. Thereby, the audio data of the music which has been selected by the player in advance is read from the CD 105 via the optical pickup 107, the demodulation circuit 109 and the audio data signal processing circuit 111, and the D / A converter 112
From the speaker 115 via the LPF 113 and the amplifier 114.

The performer is, this way, according to the music of CD105 to be reproduced, performed a play on the keyboard 202 ₁ of the instrument operation unit 202. Thus, every time the processing of S705 is executed in repetitive operations of S705 → S706 → S707 → S705, the performance data inputted from the keyboard 202 _1, sequentially written into the automatic playing memory 208 as Figure 8 as sequence data Going on. As the sequence data, as shown in FIG. 8, the wait instruction C _WT
And weight data D _WT , key-on command C _ON and key data D _KY , key-off command C _OF and key data D _KY , CD absolute time data D _{AT, and the} like.

In Figure 8, a wait instruction C _WT is an instruction to wait execution of the next play data by the time indicated by the weight data D _WT, the weight data D _WT generated in the timer circuit 209 of FIG. 1 or FIG. 4 Is done. Now, each time a certain play operation is performed, the reset signal RST to the timer counter 209 ₂ is input via the OR circuit 209 ₅ of FIG. 4 from the instrument controller 201, the counter is reset. Hereafter, the timer counter 209 ₂ is counted up in accordance with the clock from the reference clock generator 209 _1. The instrument control unit 201 captures the count output of the timer counter 209 ₂ as weight data D _WT at the input time point of the next play data, writing to the automatic playing memory 208, again, the timer counter 2 by the reset signal RST
09 Reset ₂ By the above operation, the time from one performance operation to the next performance operation is measured and stored in the automatic performance memory 208 as weight data _DWT . Here, Wait instruction C _WT and the weight data D _WT memory address 4 of Figure 8, after the player presses the start switch 202 ₃ of the instrument operating section 202, indicates the time until the first key operation ing.

Next, the key-on command C _ON is a command for instructing start of generation of a musical tone having a pitch indicated by the key data _DKY .

Conversely, the key-off command C _OF is a command for instructing to stop the tone generation at the pitch indicated by the key data D _KY .

Furthermore, CD control unit 103, every time the key-on operation of the key is performed, to receive the CD absolute time data D _AT being detected from CD105 at which time the CD controller 103, a key data D following the key-instruction C _ON Write to the memory address next to _KY . As a result, the CD player unit 10
The timing of the music being played at 0
Recorded in 08.

When the player presses the stop switch 202 ₄ (FIG. 3) of the musical instrument operating section 202, this is detected in S707, and the end command C _{E is} stored in the automatic performance memory 208 in S708 as shown in FIG.
Is written, and the sequencer write mode ends.

When the sequence data is written to the last memory address of the automatic performance memory 208 during the performance, the determination in S706 becomes YES, and the sequencer write mode is forcibly terminated.

In contrast to the above operation, there is no need for the performer to play the music on the CD 105 in synchronization with the automatic performance,
If not press the play switch 102 ₁ in advance, the determination of S702 becomes NO. As a result, the CD start command C _TP , the CD absolute time data D _AT indicating the beginning of the music, and the CD playback command C _PY are not written in the automatic performance memory 208, and the CD player section 100
Is not instructed to reproduce. Then, the process jumps to the process of S705, and only the operation of writing the sequence data to the automatic performance memory 208 is executed. Further, in S705, not performed writing to autoplay memory 208 of CD absolute time data D _AT for each preceding key-instruction C _ON. This behavior is
This corresponds to a writing operation of automatic performance data in a conventional electronic musical instrument with an automatic performance function.

<< Operation in Sequencer Priority Mode >> An operation in the case where the automatic performance operation is performed after the above-described automatic performance data writing operation will be described. First, the player will be described the operation in the case of selecting the sequencer priority mode, one of the sequencer play mode by the mode change-over switch 202 ₂ of the instrument operating section 202.

In this case, the musical instrument control unit 201 shown in FIG.
Is executed, and the determination in S901 becomes YES.

First, musician, UP switch 202 ₅ and DOWN switch 202 ₆ (FIG. 3 of the timing to start the automatic performance musical instrument operating section 202 of the played content to the automatic playing memory 208 is stored as Figure 8 ) And the display unit 210 shown in FIG. This operation is realized as follows under the control of the musical instrument control unit 201.

First, in S902, the UP switch 202 of the musical instrument operation unit 202
_{5 It} is determined whether (FIG. 3) is pressed.

If UP switch 202 ₅ is pressed, an affirmative decision (YES) is obtained in S902, the address is not shown in JP showing a memory address on the automatic playing memory 208 counter (hereinafter simply referred to as a memory address) is incremented, the next key-on instruction The process proceeds to the memory address where C _ON is stored. That is, in S903, the memory address of the automatic performance memory 208 is +
The increment of the memory address is repeated while the key-on command C _ON is detected in S904 while being incremented by one.

When the key-on command C _ON is detected, the determination in S904 becomes YES, the current memory address is incremented by 1 in S909, and the current memory address is stored at the next memory address on the automatic performance memory 208 where the key-on command C _ON is stored. The key data _DKY is read. Then, the key data _DKY is displayed on the display unit 210 in FIG. Thereby, the player can recognize the key data _DKY on the automatic performance memory 208 which is currently instructed.

Then, the memory address further +1 in S910, in S911, whether CD absolute time data D _AT is present is discriminated in its memory address. Performed in the aforementioned sequencer write mode, performer, in order to perform the reproduction of the music on CD105 in synchronization with the automatic performance, a write operation to the automatic playing memory 208 of the sequence data from the press playback switch 102 ₁ in advance In this case, as shown in FIG. 8, the CD absolute time data _DAT is stored in the automatic performance memory 208 at the memory address following the key data _DKY following each key-on command C _ON . Therefore, in such a case, the determination in S911 is YES.

Thus, in S912, corresponding to the weight data D _WT currently being displayed on the display unit 210 CD absolute time data D _AT is read from the automatic playing memory 208, CD controller 1
Transferred to 03. At the same time, the musical instrument control unit 201 instructs the CD control unit 103 to search for a CD. Thus, CD control unit 103 controls the optical pickup 107 from the servo circuit 104 performs the cue position on CD105 corresponding to the above CD absolute time data D _AT.

On the other hand, in the aforementioned sequencer write mode, performer, because there is no need to perform the reproduction of the music on CD105 in synchronization with the automatic performance, automatic performance sequence data without pressing the regeneration switch 102 ₁ in advance memory 208 when performing the write operation to, the automatic playing memory 208 CD absolute time data D _AT is not stored. Therefore, in such a case, the determination in S911 is NO. In this case, it is not necessary to play back the music on CD 105 during the automatic performance.
912 CD heading instruction is not performed.

Subsequently, in S913, it is determined whether or not the start switch 202 ₃ (FIG. 3) of the musical instrument operation unit 202 has been pressed, and if not, the process returns to S902.

Against above-mentioned operation, in the determination of the above S902, when the UP switch 202 ₅ (FIG. 3) of the instrument operating section 202 is judged not pressed, the judgment proceeds to NO, S905.

In S905, the DOWN switch 202 ₆
It is determined whether (FIG. 3) has been pressed.

If DOWN switch 202 ₆ is pressed, YES is determined in S905
Then, the memory address on the automatic performance memory 208 is decremented, and the process returns to the memory address at which the immediately preceding key-on command C _ON is stored. That is, while the memory address of the automatic performance memory 208 is decremented by one in S907, S90
The decrement of the memory address is repeated until the key-on command C _ON is detected at 8. If the memory address becomes 0 as a result of the memory address being decremented, the decrement is not performed any more, and the process jumps to S913.

If the key-on command C _ON is detected, the determination in S908 is YES
Next, it thereafter, as if the UP switch 202 ₅ above was pressed, is executed operation S909～S913, display operation of decrementing memory addresses, beginning of operation and the start switch 202 ₃ on CD105 A detection operation is performed.

As described above, UP switch 202 ₅ or DOWN switch
Each pressed 202 ₆ either is, the memory address on the automatic performance memory 208 is incremented or decremented, the player can move the start of the automatic performance to the desired position.

The above operation is performed by the start switch 202 of the musical instrument operation unit 202.
_{3 This} is repeated until (FIG. 3) is pressed and the judgment in S913 becomes YES. Incidentally, while the start switch 202 ₃ and DOWN switch 202 ₆ both not pressed in, S902 → S905 → S913
→ The processing loop of S902 is repeated, and the process waits until any switch is pressed.

As described above, the player is, UP switch 202 ₅ or DO
By operating the WN switch 202 _6, after moving the start of the automatic performance at a desired position, by pressing the start switch 202 ₃ of the instrument operating section 202 (FIG. 3), an electronic keyboard in the following manner An automatic performance operation in the musical instrument section 200 and a synchronous reproduction operation in the CD player section 100 are executed.

That is, when the start switch 202 ₃ is pressed, S913
Is YES, and it is determined in S914 whether the current memory address points to 0.

If the current memory address is not 0, the judgment of S914 is
No, proceed to S915.

In S915, a value obtained by subtracting -3 from the current memory address is held in a buffer (not shown) in the musical instrument control unit 201.
Now, the contents of the current memory address are as described in S904 to S910.
Processing next CD absolute time data D _AT key data D _KY following the key-instruction C _ON points to a memory address stored by the. Therefore, the content of the buffer obtained by subtracting -3 from this value indicates one memory address before the position of the key-on command C _ON specified by the player. This meaning will be described later.

Next, in S916, the contents of the memory address is set to 1, in S917, whether CD cue memory address 1 instruction C _TP is present is discriminated.

In the sequencer light mode described above, the player
When the playback switch 102 ₁ is pressed in advance and the sequence data is written to the automatic performance memory 208 in order to reproduce the music on the CD 105 in synchronization with the automatic performance, the memory address 1 of the automatic performance memory 208 The 8th
As shown in the figure, a CD start command _CTP is stored. Therefore,
In such a case, the determination in S917 is YES. As a result, in S918, the CD control unit 103 is instructed to reproduce the music on the CD 105. In this case, the reproduction start timing is the point in time at which the reproduction was searched in S912.

After the above operation, in S919, the address data held in the buffer in S915 is set again in the memory address. As described above, this content points to one memory address before the position of the key-on command C _ON specified by the player. This process is a process for obtaining consistency with the process of S943 described below.

On the other hand, in the aforementioned sequencer write mode, performer, because there is no need to perform the reproduction of the music on CD105 in synchronization with the automatic performance, automatic performance sequence data without pressing the regeneration switch 102 ₁ in advance memory 208 When the write operation is performed on the CD, the CD start command _CTP is not stored in the automatic performance memory 208 (see S702 in FIG. 7). Therefore, in such a case, the determination in S917 is NO. In this case, there is no need to play back the music on the CD 105 during the automatic performance, so the CD playback instruction in S918 is not issued.

If the current memory address is 0 at the time when the determination in S913 is YES with respect to the above-described operation,
Is YES, and the process proceeds to S920. In the case described above, the player operates the mode changeover switch 202 of the musical instrument operation section 202.
_{Once the} sequencer priority mode has been selected by step ₂
If you press the start switch 202 ₃ without pressing the switch 202 ₅ and DOWN switch 202 _6, or by pressing the DOWN switch 202 ₆ the same number of times as it after you press UP switch 202 ₅ several times the determination of S906 is YES Is one of the cases.

In S920, the current memory address is incremented by one, and in S921, it is determined whether or not the CD start command _CTP exists at the memory address. Now, the current memory address is 0
Therefore, when +1 is added, the content becomes 1.

Now, as in the case of S917, in the above sequencer write mode, performer, in order to perform the reproduction of the music on CD105 in synchronization with the automatic performance, automatic performance sequence data by pressing a reproduction switch 102 ₁ in advance When the writing operation to the memory 208 is performed, the CD start command _CTP is stored in the memory address 1 of the automatic performance memory 208 as shown in FIG. Therefore, in such a case, the determination in S921 is YES. Thereby, in S922, the content of the memory address is further incremented by 1, and the content becomes 2. Then, the 8 CD indicating the beginning of the music to be reproduced together with the automatic performance stored as view absolute time data D _AT is read from the auto-play memory 208 to the memory address 2 is transferred to the CD controller 103, At the same time, a CD heading instruction is issued to the CD control unit 103. Further, in S923, the content of the memory address is incremented by 1, and the content becomes 3. Then, based on the CD playback command C _PY stored in the memory address 3, a CD playback instruction is issued to the CD control unit 103. In this case, the reproduction start timing is the beginning of the music tuned out in S922. Here, the content of the memory address indicates one memory address before the first memory address 4 where the sequence data relating to the performance data is stored. This is because the player instructed the beginning of the music as the start timing of the automatic performance. This relationship is the same as in the case of S919 described above.

On the other hand, in the aforementioned sequencer write mode, performer, because there is no need to perform the reproduction of the music on CD105 in synchronization with the automatic performance, automatic performance sequence data without pressing the regeneration switch 102 ₁ in advance memory 208 When the write operation is performed on the CD, the CD start command _CTP is not stored in the automatic performance memory 208 (see S702 in FIG. 7). Therefore, in such a case, the determination in S921 is NO. In this case, there is no need to play back the music on the CD 105 during the automatic performance, so the CD heading instruction in S922 and the CD playback instruction in S923 are not performed. In this case, the content of the memory address is reset to 0 in S924. This content points one memory address before the memory address 1 where the sequence data relating to the performance data is stored. This relationship is the same as in the case of S919 described above.

As described above, after the reproduction instruction is given to the CD player unit 100, every time the processing of S943 is executed by repeating S943 to S946 → S943, the memory address of the automatic performance memory 208 is changed to S919, While sequentially incrementing from the memory address set in the processing of S923 or S924, sequence data is read from each memory address, and an automatic performance operation is executed according to the contents. In this case, the increment operation is performed by a timer circuit described later.
This is executed based on the operation at 209.

For example, if the instrument controller 201, read the key-command C _ON memory address 6 of Figure 8, further reads the next key data D _KY, tone generator 20
Instruct 3 to start generating a musical tone at the corresponding pitch.

Conversely, when the musical instrument control unit 201 reads out the key-off command C _OF from, for example, the memory address 11 in FIG. 8, it reads out the next key data D _KY and sends it to the tone generator 203 at the corresponding pitch Instructs the silence of the musical tone being pronounced.

Further, the operation of incrementing the memory address is realized as follows. That is, the musical instrument control unit 201
For example Wait instruction C _WT memory address 9 of Figure 8
When reading the further the read the following weight data D _WT, and sets the data to wait register 209 ₃ in the timer circuit 209 of FIG. 1 or FIG. 4. At the same time, the timer circuit 209, timer counter 209 ₂ is reset at the timing of the increment of the previous memory address as described below. Hereafter, a fourth diagram of the timer counter 209 ₂ is the reference clock generator 20
9 Counted up sequentially according to the clock from ₁ .
These timers counters 209 and _second output and the weight register
209 the contents of the set wait data D _WT to ₃ are compared in matching circuit 209 _4. Then, when their contents match, a signal indicating that the match from the match circuit 209 ₄ is output as an address increment signal INC. This signal is output to the musical instrument control unit 201, whereby the musical instrument control unit 201 increments a memory address for reading data from the automatic performance memory 208. Further, the timer circuit 209 of FIG. 4, the address increment signal INC resets the timer counter 209 ₂ via the OR circuit 209 _5, wait register
209 ₃ resets the provided the process for the next wait data D _WT. With the above operation, the timing from one performance operation to the next performance operation is measured, and an automatic performance is realized.

The above-described automatic performance operation is performed when the sequence data is read to the last memory address of the automatic performance memory 208 during the automatic performance, or when the automatic performance memory 208 is read during the automatic performance.
In step S94, the end command C _E (see FIG. 8) is read out from the CPU or the player presses the stop switch 202 ₄ (FIG. 3) of the musical instrument operation unit 202.
4. End by detecting them in S945 or S946.

<< Operation in the CD priority mode >> Next, the player switches the mode switching stage 2 of the musical instrument operation unit 202.
02 ₂ by the operation of the case of selecting the CD priority mode, one of the sequencer play mode.

In this case, the musical instrument control unit 201 shown in FIG.
Is executed, the determination in S901 is YES, and the process further proceeds to S925 in FIG. 9B.

In S925, first, the content of the memory address is incremented by one. Since the content of the memory address is initially reset to 0, the content of the memory address becomes 1 by this processing.

Subsequently, in S926, whether CD cue command C _TP in memory address 1 is stored it is determined. Now, in the aforementioned sequencer write mode, performer, in order to perform the reproduction of the music on CD105 in synchronization with the automatic performance, a write operation to the automatic playing memory 208 of the sequence data from the press playback switch 102 ₁ in advance , The CD start command _CTP is stored in the memory address 1 of the automatic performance memory 208 as shown in FIG. Therefore, in such a case, the determination in S926 is YES. On the other hand, in the aforementioned sequencer write mode, performer, because there is no need to perform the reproduction of the music on CD105 in synchronization with the automatic performance, automatic performance sequence data without pressing the regeneration switch 102 ₁ in advance memory 208 When a write operation is performed to the memory, the memory address 1 of the automatic performance memory 208 contains C
The D start command _CTP is not stored. Therefore, in such a case, the determination in S926 is NO. In this case,
There is no need to play songs on CD 105 during automatic performance,
Since there is no point in setting the mode to the D priority mode, the process ends without doing anything.

If the determination in S925 is YES in the former, the process proceeds to S927, where the current memory address 1 is further incremented by 1 and the content becomes 2.

Then, in S928, the first CD of the music of the CD 105 to be reproduced when performing the automatic performance from the memory address 2
The absolute time data _DAT is read and transferred to the CD control unit 103. At the same time, the musical instrument control unit 201 instructs the CD control unit 103 to search for a CD. Thereby, the CD control unit 103
Controls the optical pickup 107 through the servo circuit 104 performs the start of the beginning of the song on CD105 corresponding to the above CD absolute time data D _AT.

Further, in S929, the content of the memory address is incremented by 1, and the content becomes 3. Then, based on the CD playback command C _PY stored in the memory address 3, a CD playback instruction is issued to the CD control unit 103. This allows the CD player section
In 100, CD1 starts from the beginning of the song found in S928.
05 playback starts.

In this state, the player, while playing back the audio data recorded on the CD 105, synchronizes the automatic performance of the electronic keyboard instrument section 200 with the timing at which the playback is started by the CD operation section.
It can be arbitrarily selected while using 102 fast-forward switch 102 ₄ or rewind switch 102 ₅ (Figure 2) or the like.

On the other hand, in step S930, the musical instrument control unit 201 controls the pause switch 102 of the CD operation unit 102 via the CD control unit 103.
₃ It is determined whether or not (FIG. 2) is pressed. Then, the player presses the pause switch 102 ₃ CD operating section 102, the reproduction of the audio data by the control of the CD controller 103 pauses.

In the subsequently S931 This instrument control unit 201 receives the CD absolute time data D _AT pause time from the CD controller 103, in particular holds the latch circuit (not shown).

Following the above operation, S932 → S933 → S934 → S935 → S932
In the repetition of the process of, every time the processing of S932 is executed the value of the memory address is by +1, the contents of the memory address on the automatic playing memory 208 each time the processing of S933 is executed by the key-instruction C _ON It is determined whether or not there is.

In the above-described repetitive processing, when the key-on command C _ON is detected in the processing of S933, the determination is YES, and in S93
Proceed to step 6. In S936, the memory address where the instruction is stored is incremented by +2. This memory address, the detected key-on corresponding to a command C _ON CD absolute time data D _AT is stored (memory address, for example, Figure 8 8).

Then, in S937, CD absolute time data D _AT corresponding to the detected key-on command C _ON is read out from the memory address of the above, it poses the time it is latched in the aforementioned CD
It is determined whether or not the absolute time data has been exceeded (large). If not exceeded, the memory address on the automatic performance memory 208 has not reached the position corresponding to the timing at the time of the pause, so the process returns to S932 and the processing of S932 to S935 is repeated again, and Then, the further key-on command C _ON is searched.

In the above-described repetitive processing, each time the processing of S934 is executed, it is determined whether or not the memory address on the automatic performance memory 208 has reached the final address (memory end).
End command C from the automatic performance memory 208 for each process of S935
_It is determined whether _E (see FIG. 8) has been read. S93
If the determination in step 4 or S935 is YES, there is no corresponding sequence data in the automatic performance memory 208, so the electronic keyboard instrument unit 200 ends the process without doing anything.

In S937, the CD absolute time data D _AT corresponding to the detected key-on command C _ON over autoplay memory 208,
If the absolute CD data exceeds the latched pause time CD absolute time data, the determination is YES and the process proceeds to S938.

In S938, the detected CD absolute time data D _AT described above is held in the latch described above. Note that the content held in the latch circuit is erased because it is no longer necessary.

Subsequently, in S939, the current memory address is decremented by -3. The memory address, the processing of S936, for example, as a memory address 8 of Figure 8 indicates the address for the first time beyond the CD absolute time data D _AT the CD absolute time data of the pause time is stored. Therefore, by the memory address is -3, for example, as a memory address 5 of Figure 8, pointing to previous one of the addresses key-instruction C _ON corresponding to the CD absolute time data D _AT is stored I have. This process is a process for obtaining consistency with the process of S943 described below. Note that this relationship is
It is similar to the case of S919.

After the above operation, in S940, the process waits until the start switch 202 ₃ (FIG. 3) of the musical instrument operation unit 202 is pressed.

When the player presses the start switch 202 _3, the determination is YES in S940, in S 941, for CD control unit 103 CD 10
An instruction to play the song No. 5 is issued.

Subsequently, in S942, the musical instrument control unit 201 receives the CD absolute time data that the CD control unit 103 sequentially detects from the CD 105 via the subcode signal processing circuit 110, and determines whether the data has become equal to the content of the above-described latch. It is determined whether or not. In this latch, in S938, the CD absolute time data D _AT on the automatic performance memory 208 exceeding the pause point for the first time is stored.
Is held.

After the above-described operation, S9 is repeated by repeating S943 to S946 → S943 in the same manner as in the sequencer priority mode.
Every time the process of 43 is executed, the memory address of the automatic performance memory 208 is sequentially incremented from the memory address set in the process of S919, S923 or S924,
Sequence data is read from each memory address,
The automatic performance operation is executed according to the contents.

As described above, the reproduction of the paused audio data is resumed, and the automatic performance can be started from the corresponding timing of the corresponding performance content on the automatic performance memory 208 in synchronization with the reproduction.

<< Operation of Synchronous Adjustment Process >> In the sequencer priority mode or the CD priority mode described above, music playback by the CD player unit 100 and the electronic keyboard instrument unit 2
After the automatic performance at 00 is started in synchronization with an arbitrary time, the CD control unit 103 and the musical instrument control unit 201 are independent of each other,
The playback of the music on the CD 105 and the automatic performance based on the sequence data in the automatic performance memory 208 are executed.

On the other hand, a configuration may be adopted in which the synchronization correction is performed as needed even after the automatic performance starts. FIG. 10 shows an operation flowchart of the synchronization adjustment process for that purpose. This process is executed by the musical instrument control unit 201.

That is, after starting the automatic performance operation from S943 in FIG. 9 (a), the musical instrument control unit 201 reads out the key-on instruction C _ON from the automatic performance memory 208 or performs the key-on instruction C _{ON a} plurality of times (for example, Each time it is read (about 5 times), the synchronous adjustment process shown in FIG. 10 can be executed.

In FIG. 10, in S1001, first, the automatic performance memory 2
After key-instruction C _ON from 08 is read, CD absolute time data D _AT memory address is +2 corresponding to is read (see FIG. 8). At the same time, the instrument control unit 20
1 receives CD absolute time data sequentially detected from the CD 105 by the CD control unit 103 via the subcode signal processing circuit 110. Then, the two CD absolute time data are compared.

If these are equal, no processing is performed, but if they are not equal, the processing of S1002 is executed. In S1002, instrument control unit 201 accesses the CD controller 103 in the CD absolute time data D _AT read from the automatic playing memory 208,
At that timing, a reproduction instruction is issued.

By the above-described synchronous adjustment processing, even when, for example, the CD 105 is damaged and the reproduction of the music jumps in the middle, the automatic performance operation of the electronic keyboard instrument unit 200 is always performed by the CD player unit 100. It becomes possible to synchronize with the music reproduction operation.

<< Other Embodiments >> In each of the embodiments described above, the CD absolute time data D _{AT is} stored in the automatic performance memory 208 in the sequencer light mode.
Is stored at the timing when the key-on command C _ON is stored, but other than that, for example, program change (tone change) as sequence data
And the like may be stored, the CD absolute time data _DAT may be stored in _{synchronization} with the timing at which the command is stored. This makes it possible to synchronize the automatic performance and the CD playback from the timing of the program change. In addition, the CD absolute time data _DAT may be stored in accordance with the timing of various sequence data. Further, instead of the CD absolute time data D _AT, it is also possible to use a CD track number and the relative time data.

In addition, in advance, when the player performs the sequencer light mode, the keyboard 202 ₁ (FIG. 3) in synchronization with the reproduction of the music on the CD 105
Is performed, and the sequence data is written to the automatic performance memory 208.However, the present invention is not limited to this. The sequence data may be transferred to the automatic performance memory 208. Here, the format and type of the stored sequence data can be arbitrarily changed according to the musical instrument to be automatically played.

In addition, the electronic keyboard instrument unit 200 was automatically played along with the playback of the music on the CD 105 by the CD player unit 100.
The DAT (Digital Audio Tape Recorder) is not limited to players, but can be any music playback device that can output time data in sequence with music playback.
Etc. can also be used. The data is not limited to time data, but may be address data as long as it can take timing.

Further, the musical instrument to be automatically played has been described using an electronic keyboard instrument in the above embodiment, but is not limited to this, and may be an electronic musical instrument without a keyboard, such as an electronic wind instrument or an electronic guitar.

In addition, the musical instrument to be automatically played is not limited to an electronic musical instrument, and a conventional acoustic musical instrument such as a piano is used to output performance data such as pitch data and velocity data using a sensor, and accordingly, If a key is depressed using a plunger solenoid or the like, the piano part can be automatically played in accordance with, for example, a minus one CD, and the piano concerto can be played with a feeling close to a demonstration.

〔The invention's effect〕

According to the present invention, the user (performer) can arbitrarily specify the automatic performance start time on the automatic performance data storage means, and based on this, start the automatic performance by the sound source means from that time, and Synchronously, the reproduction of the audio data by the reproduction means can be started.

Conversely, the user can specify an arbitrary reproduction start timing of the audio data while reproducing the audio data by the reproduction means, and based on this, start reproduction of the audio data by the reproduction means from that time, Automatic performance by the sound source means can be started in synchronization with this.

In this case, since the position data read from the recording medium of the reproducing means is stored in the automatic performance data storing means, it is possible to reliably perform synchronization.

In addition, as a reproducing means, a commonly used CD device or the like can be used as it is, and there is no need to change the specifications of the recording medium, and almost no change in hardware is required. Further, the sound source means can be handled by software processing. Therefore, it is possible to realize a low-cost automatic performance device.

Further, in the present invention, by providing the synchronization correcting means, it becomes possible to make corrections so that both are synchronized at any time after the reproduction of the audio data and the automatic performance by the sound source means are started. Thus, for example, even if the CD disc is damaged and the music playback jumps in the middle, the automatic performance operation on the sound source means always replaces the audio data reproduction operation on the playback means side. It becomes possible to synchronize.

Here, the recording of the automatic performance data in the above-mentioned automatic performance data storage means can be supplied by the maker side, for example, by a ROM pack or the like, but in the present invention, in particular, by providing the 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 description of the drawings]

FIG. 1 is an overall configuration diagram of one embodiment of the present invention, FIG. 2 is a configuration diagram of a CD operation unit, FIG. 3 is a configuration diagram of a musical instrument operation unit, and FIG. 4 is a configuration diagram of a timer circuit. FIG. 5 is a diagram showing the structure of a frame, FIG. 6 is a diagram for explaining the absolute time of a CD, FIG. 7 is a flowchart showing the operation in a sequencer light mode, FIG. (A) and (b) are operation flowcharts of the sequencer play mode, and FIG. 10 is an operation flowchart of the synchronous adjustment processing. 100 CD player section, 101 TOC memory, 102 CD operation section, 103 CD control section, 104 servo circuit, 105 C
D, 106: Disk motor, 107: Optical pickup, 1
08 …… Pickup feed motor, 109 …… Demodulation circuit, 110
…… Subcode signal processing circuit, 111 …… Audio data signal processing circuit, 112, 204 …… D / A converter, 113, 205 ……
Low-pass filter (LPF), 114, 206 ... Amplifier, 115,
207: Speaker, 200: Electronic keyboard instrument section, 201: Instrument control section, 202: Instrument operation section, 203: Tone generator, 208: Automatic performance memory, 209: Timer circuit, 210: Display section.

Claims (7)

(57) [Claims] 1. A sound source means for performing an automatic performance based on automatic performance data; a reproducing means for reproducing audio data recorded on a recording medium; and a reproducing means for reproducing the audio data by the reproducing means. Position data reading means for sequentially reading position data indicating each timing of the audio data being reproduced recorded on the recording medium; and storing the automatic performance data; 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 reproducing means in synchronization with the automatic performance by the sound source means based on the automatic performance data of A synchronization start time designation means for designating a synchronization start time by a user; A timing corresponding to the synchronization start time based on the position data stored in the automatic performance data storage means, or based on the position data and the position data sequentially read from the position data reading means. From the automatic performance data stored in the automatic performance data storage means in synchronization with the instruction operation. And a synchronization control means for reading out the sound in order from the sound source means and causing the sound source means to perform an automatic performance based on the read sound data. 2. A sound source means for performing an automatic performance based on automatic performance data; a reproducing means for reproducing audio data indicating a music piece recorded on a recording medium; and a reproducing operation of the audio data by the reproducing means. Position data reading means for sequentially reading position data indicating respective timings of the audio data being reproduced recorded on the recording medium, and storing the automatic performance data; Storing the position data indicating the timing of the audio data to be reproduced by the reproducing means in synchronization with the automatic performance by the sound source means based on the predetermined automatic performance data, together with the predetermined automatic performance data. A data storage means for automatically performing a position of any of the predetermined automatic performance data on the automatic performance data storage means; Automatic performance start time designation means for designating a user as a performance start time; and the position data stored together with the predetermined automatic performance data at the automatic performance start time designated by the automatic performance start time designation means. The automatic performance data stored in the automatic performance data storage means is read from the performance data storage means, instructs the reproduction means to start reproduction of the audio data from the timing of the position data, and is synchronized with the instruction operation. And a synchronization control means for sequentially reading out the predetermined automatic performance data at the time of starting the automatic performance and causing the sound source means to perform an automatic performance based on the data. 3. A sound source means for performing an automatic performance based on automatic performance data; a reproducing means for reproducing audio data indicating a musical piece recorded on a recording medium; and a reproducing means for reproducing the audio data by the reproducing means. Position data reading means for sequentially reading position data indicating respective timings of the audio data being reproduced recorded on the recording medium, and storing the automatic performance data; Storing the position data indicating the timing of the audio data to be reproduced by the reproducing means in synchronization with the automatic performance by the sound source means based on the predetermined automatic performance data, together with the predetermined automatic performance data. Data storage means, and an arbitrary reproduction start timing of the audio data,
A reproduction start time designation means for designating a user while reproducing the audio data by the reproduction means; and the position data read from the position data reading means at the reproduction start timing designated by the reproduction start time designation means. Is searched for in the automatic performance data storage means, and thereafter, the reproduction means is instructed to start reproduction of the audio data from the reproduction start timing, and after the reproduction start, the position data is sequentially read out from the position data reading means. The automatic performance data stored in the automatic performance data storage means is sequentially changed from the predetermined automatic performance data corresponding to the searched position data at a timing when the detected position data matches the searched position data. Read out and play an automatic performance on the sound source means based on it. An automatic performance device comprising: 4. The automatic performance device according to claim 1, wherein the performance operation means causes the user to perform a performance operation, and the performance operation means provides the user with the reproduction of the audio data by the reproduction means. The performance operation is performed in accordance with the performance operation, and the performance information output from the performance operation means is sequentially written into the automatic performance data storage means as the automatic performance data in synchronization with the performance operation. Automatic performance data writing means for writing the position data read from the position data reading means to the automatic performance data storage means together with the predetermined automatic performance data at a timing at which the predetermined automatic performance data is written; 4. The automatic performance apparatus according to claim 1, wherein: 5. The position data sequentially read out from the position data reading means after the synchronization control means starts reproduction of the audio data by the reproduction means and the start of automatic performance by the sound source means; The position data sequentially read from the storage means are sequentially compared, and if they do not match, the reproduction timing of the audio data by the reproduction means at the timing of the position data read from the automatic performance data storage means 5. The automatic performance apparatus according to claim 1, further comprising a synchronous correction means for correcting the following. 6. The automatic performance apparatus according to claim 1, wherein said reproducing means is one of a compact disk player and a digital audio tape recorder. 7. The position data is time data indicating an elapsed time from a recording start time of the audio data recorded in a subcode of the compact disc player or digital audio tape recorder. The automatic performance device according to claim 6.