JP2658450B2 - 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.

In this case, automatic playback of an electronic musical instrument or the like can be synchronized by simultaneously instructing some means to reproduce the music and start the automatic performance.

However, during the performance of automatic performance, the playback speed of music changes on tape recorders and the like, and on CDs etc., sound skips due to scratches on the CD disc, and the automatic performance and music playback are synchronized. In some cases.

In such a case, the user conventionally operates the tempo operation key to catch up or delay the tempo of the automatic performance with respect to the reproduction of the music.

[Problems to be solved by the invention]

However, in the above conventional example, when the tempo of the automatic performance is changed, the tempo can be adjusted at that moment, but thereafter, the shift caused by changing the tempo increases. Therefore, the tempo has to be restored again at an appropriate timing, and there is a problem that the operation becomes complicated.

Also, even in the case of performing the automatic performance alone,
In some cases, the user may wish to produce a special performance effect by shifting only the musical tone corresponding to a specific note from the tone generation time set in advance as the automatic performance data. Can not.

An object of the present invention is to enable a user to make real-time adjustment only at a specific waiting timing from one performance operation to the next performance operation.

[Means for solving the problem]

The present invention first has sound source means for generating a musical tone.
The means is, for example, an electronic keyboard instrument, an electronic string instrument, an electronic wind instrument, or the like having a sound source such as a PCM method, a waveform modulation method, an overtone addition method, or an overtone subtraction method. An acoustic musical instrument having a function of performing automatic performance based on 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.

Next, there is provided automatic performance data storage means for storing automatic performance data. Here, the automatic performance data is data output from the musical instrument when the user plays the electronic musical instrument, for example, and the timing of the waiting time such as a key-on command and key data, a key-off command and key data, a key-on, a key-off, etc. Weight data (including a wait instruction). In addition, a command such as a program change for instructing a tone change may be included.

In addition, there is provided automatic performance control means for causing the sound source means to perform automatic performance based on the automatic performance data stored in the automatic performance data storage means. For example, when the weight data is read from the automatic performance data storage means, the wait time until the next automatic performance data is read from the automatic performance data storage means is measured by measuring the time length indicated by the weight data. May be configured to have waiting timing control means for controlling the timing. Further, the wait timing control means includes weight data storage means for storing weight data sequentially read from the automatic performance data storage means, timer means for measuring time from the timing at which the weight data is written to the weight data storage means, If the time measured by the timer means matches the content stored in the weight data storage means, it is possible to have an instruction means for instructing reading of the next automatic performance data from the automatic performance data storage means.

Further, there is provided tempo skip instructing means for instructing the user to perform a tempo skip. The means is, for example, a tempo skip up switch and a tempo skip down switch.

Then, when the user operates the tempo skip instructing means at a timing of waiting from an arbitrary performance operation to the next performance operation during the automatic performance operation of the sound source means by the automatic performance control means, the operation is performed in response to the operation. Tempo skip control means for controlling the automatic performance control means to change only the time length of the waiting timing. This means can be configured to change the time length indicated by the weight data measured by the above-mentioned timing control means, for example, according to the operation of the tempo skip instructing means by the above-mentioned user. More specifically, the storage contents of the above-mentioned weight data storage means may be changed in accordance with the above-mentioned operation.

In addition to the above configuration, the present invention includes a reproducing unit for reproducing the audio data recorded on the recording medium in synchronization with the automatic performance operation of the sound source unit by the automatic performance control unit. The means is, for example, a compact disc 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.

Further, in addition to the above-described configuration, it is possible to provide 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.

Further, the user is allowed to perform a performance operation with the performance operation means in synchronization with the reproduction of the audio data by the reproduction means or independently, and the performance information output from the performance operation means in accordance with the performance operation is used as automatic performance data. There is provided automatic performance data writing means for sequentially writing in the automatic performance data storage means.

[Action]

When the user operates the tempo skip instructing device at a timing of waiting from the arbitrary performance operation to the next performance operation during the automatic performance operation of the sound source device by the automatic performance control device, the tempo skip control device performs the operation. Control the automatic performance control means to change only the time length of the above-mentioned waiting timing. Thus, for example, the time length indicated by the weight data currently measured by the above-described timing control means is changed, and only the waiting timing can be shifted.

Note that if the player operates the tempo skip instructing device many times at one waiting timing, the time length sequentially changes accordingly. In other words, if the player wishes to shift the timing a lot at a certain waiting timing, he or she has to operate the tempo skip instructing means many times in a row before moving on to the next performance operation.

In particular, in the present invention, when a reproduction means such as a CD for reproducing audio data recorded on a recording medium is provided in synchronization with an automatic performance operation of a sound source means by an automatic performance control means, for example, a CD disc is provided. In the event that the music being played causes skips due to scratches, etc., and the playback of the music is no longer synchronized with the automatic performance, the player operates the tempo skip instructing means to perform manual operation. Synchronization between song playback and automatic performance is possible.

Further, in the case where the automatic performance is performed alone, it is also possible to add a special effect by deliberately shifting the synchronization of only a part of the automatic performance.

In the present invention, if the performance operation means and the automatic performance data writing means are provided, the user can use the performance operation means to play back the audio data in the reproduction means.
Alternatively, by performing the performance operation alone without performing the reproduction, the automatic performance data corresponding to the performance operation can be stored in the automatic performance data storage means via the automatic performance data writing means.

Further, in combination with the present invention, a normal tempo operating means for changing the entire tempo during the automatic performance may be provided.

〔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.

Reference numeral 102 denotes a CD operation unit, not shown, which includes a switch for play and stop, a pause (pause) switch, a numeric keypad for music selection, and the like, which are provided in a normal CD player.

The CD control unit 103 is, for example, a microprocessor,
The overall control of the D player unit 100 is performed, and various types of data are exchanged with the subcode signal processing circuit 110, the musical instrument control unit 201, the TOC memory 101, and the like. When the CD 105 is driven, a drive control signal is output to the servo circuit 104.

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 racer 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 synchronizing signal from the electric signal output from the optical pickup 107, identifies a delimiter and an order of each digital data (audio data and subcode) described later, and further performs EFM modulation and It demodulates 14-bit digital data (such as subcode and audio data) modulated by a so-called method and converts it into 8-bit digital data. Then, of the data subjected to the EFM demodulation, the audio data is sent to the audio data signal processing circuit 111, and the subcode is sent to the subcode signal processing circuit 110.
Enter In general, it is not known at what probability the logic "1" and the logic "0" of each bit of digital data occur. Then, the optical pickup 107 shown in FIG.
When digital data is detected as an electrical signal from a pit on D105, 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. Such a state causes a malfunction in the servo circuit 104 that performs a control operation based on the output of the optical pickup 107. Therefore, in order to remove such a direct current component as much as possible, data conversion is performed such that one of logic "1" or "0" does not continue for a long time in consecutive bits of digital data to be recorded on the CD 105.
Will be recorded. This is called EFM modulation. In order to reproduce the EFM modulated signal recorded on the CD 105 in FIG. 1 in this manner, a demodulation process reverse to the above-mentioned modulation process may be performed, and this process is performed by the demodulation circuit 109.

Next, the audio data signal processing circuit 111 receives input audio data, in particular, an internal RAM (not shown).
After performing an error correction process and a de-interleave process, each sample of 16-bit digital audio data is output to the D / A converter 112. here,
Error correction refers to a data error occurring due to a defect in a recording medium, a tracking error of the optical pickup 107, or a focus defect when reading digital data recorded on a CD by the optical pickup 107. This refers to a process of correcting correctly, and is performed using an error correction code called a parity word (not shown) added to digital data read from the CD 105. Also, audio data recorded in a continuous area on the CD 105 does not record samples of audio data that are continuous in time, but the order of each sample is dispersed in accordance with a method called cross interleaving. At the time of recording and reproduction, they are rearranged in the original order according to the same rules. In this process, large data errors tend to concentrate on a CD disk due to scratches, dirt, etc., and the error correction described above cannot be performed simply by continuously recording / reproducing continuous audio data samples. Since it is often impossible to correct only by processing, the CD-105
The above concentrated error is dispersed at the time of reproduction, and is performed in order to easily perform error correction using a parity word. As described above, the audio data signal processing circuit 111 reproduces the audio data recorded on the CD 105 by the cross interleaving by the de-interleaving process which is completely the reverse of the recording process.

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. Here, the amplifier 114
Cuts any stereo channel output under the control of the CD control unit 103.

The subcode signal processing circuit 110 performs error detection and correction processing on the subcode in the same manner as the audio data signal processing circuit 111, and further performs deinterleaving processing to restore the subcode. Here, digital data recorded on the CD 105 includes control data called a subcode in addition to audio data. This subcode is read out in synchronization with the audio data.
In the present embodiment, volume control data is recorded in the subcode stored together with the audio data as described later. The CD control section 103 controls the amplifier 114 based on the volume control data.

The TOC memory 101 is a memory that stores TOC data that is read when the disc of the CD 105 is set. Now, CD1
The subcode of the area called the innermost lead-in area of 05 contains a CD called TOC (Table of Contents).
Information corresponding to the table of contents of all songs recorded on one card is recorded. In the table of contents information, song number data indicating the number of each song, information on the time of the beginning of each song from the beginning of all songs, and the like are recorded. 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,
Access the lead-in area of CD105. Furthermore, CD
The control unit 103 transmits the TOC of the lead-in area from the optical pickup 107 and the demodulation circuit 109 to the subcode signal processing circuit 110.
And stored in the TOC memory 101. The stored TOC data is stored in the CD 105
Is accessed and used as needed by the control unit.

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

Instrument operating section 202, as in FIG. 2, other keyboard 202 _1,
Mode change switch 202 ₂ , start switch 202 ₃ , stop switch 202 ₄ , tempo control UP switch 202 ₅ and
DOWN switch 202 ₆ , UP switch 202 ₇ for tempo skip
And a DOWN switch 202 _8. These will be described later.

The musical instrument control unit 201 is, for example, a microprocessor, and controls 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, and an automatic performance operation in a sequencer play mode described later. .

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 for controlling the operation related to the automatic performance, and has a configuration shown in FIG. This configuration and operation will be described later.

The operation of the embodiment having the above configuration will be sequentially described below.

<< Operation in Sequencer Write Mode >> First, the operation in the sequencer write mode will be described.

The player operates the mode switch 202 ₂ of the musical instrument operation unit 202.
By selecting the sequencer light mode according to FIG. 2 (FIG. 2), the performance performed by the player using the keyboard 202 ₁ (FIG. 2) of the musical instrument operation unit 202 in accordance with the music reproduction operation in the CD player unit 100. The contents can be stored in the automatic performance memory 208.

FIG. 4 is an operation flowchart showing the operation in this mode, and FIG. 5 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. 2) of the musical instrument operation unit 202.

Next, the player is the tempo at which to perform the automatic performance is set by the UP switch 202 ₅ or DOWN switch 202 ₆ for tempo control of the instrument operating section 202 (Fig. 2). Although not particularly shown, the tone of the musical tone to be pronounced
The volume and the like are also set.

Subsequently, 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 selects a music piece on the CD 105 to be reproduced in synchronization with the automatic performance by using a ten-key (not shown) of the CD operation unit 102, and then presses a reproduction switch (not shown). See figure). At this time, the CD
In the player unit 100, the CD control unit 103
Accesses and reads the time data corresponding to the beginning of the song number data and the music of the corresponding music to the numbers of the numeric keypad 102 _6. Then, the CD control unit 103 controls the optical pickup 107 via the servo circuit 104, and moves the optical pickup 107 to a position on the CD 105 corresponding to the above-described time data. As a result, the selection of the music on the CD 105 is started. Further, the CD control unit 103 outputs the music number 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 S401, it is monitored whether or not the start switch 202 ₃ (FIG. 2) of the musical instrument operation unit 202 has been pressed.

When the start switch 202 ₃ is depressed, but is not shown in FIG. 3, first, the information of the aforementioned tempo player has set,
As the tempo data D _TP, with the tempo setting command C _TP, are stored in the automatic performance memory 208 as Figure 5.

Next, in S402, the playback switch 1 of the CD operation unit 102 is set in advance.
It is determined whether 02 ₁ has been pressed (S402).

Performer, in order to perform the reproduction of the music on CD105 in synchronization with the automatic performance, if the pressing advance the playback switch 102 _1, as described above, S402 the determination is YES, the process proceeds to S403.

In S403, the CD playback instruction C _PY and the
The CD music number data D _NO is written as shown in FIG. These functions will be described later.

Subsequently, in S404, 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. Then, the audio data of the music that has been selected by the performer 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 is read from the D / A converter 112.
The sound is reproduced from the speaker 115 via the LPF 113 and the amplifier 114.

Musician, in accordance with the music on CD105 that are reproduced in this way, perform playing the keyboard 202 ₁ of the instrument operating section 202.
Thus, every time the processing of S405 is executed in repetitive operations of S405 → S406 → S407 → S405, the performance data inputted from the keyboard 202 _1, sequentially written into the automatic playing memory 208 as Figure 5 as sequence data Going on.

The sequence data, as FIG. 5, there is a wait instruction C _WT and the weight data D _WT, key-instruction C _ON and key data D _KY, key-off command C _OF and key data D _KY like.

In FIG. 5, the wait instruction C _WT corresponds to the wait data D
_This is an instruction to wait for the execution of the next performance data for the time indicated by _WT , and the weight data _DWT is generated in the timer circuit 209 of FIG. 1 or FIG. Now, each time a certain play operation is performed, the count enable signal to the timer counter 209 ₂ via the OR circuit 209 ₅ of Figure 3 from the instrument controller 201 ENBL and the reset signal RST is input, the counter is reset And it becomes a countable state. Hereafter, the timer counter 209 ₂ is counted up in accordance with the clock from the dividing counter 209 ₆ (described later). The instrument control unit 201 takes in the count output of the timer counter 209 ₂ as weight data D _WT at the input time point of the next performance data, the automatic performance memory 208 Fifth
Writing with Wait instruction C _WT as shown in FIG again resets the timer counter 209 ₂ by the reset signal RST. 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 . The CD in Fig. 5
Reproduction instruction C _PY and the weight instruction of the next address of the CD track number data D _NO C _WT and weight data D _WT is, after the player presses the start switch 202 ₃ of the instrument operating unit 202, making the first key operation Shows the time until.

Here, dividing counter 209 _6, reference clock generator 20
9 The frequency of the reference clock from _{1 is divided} based on the tempo data _DTP set by the player. Now, for example, in a cycle of the reference clock is 0.1 msec, the value of the tempo data D _TP "64H" ( "H" indicates hexadecimal), i.e. if "100" in decimal representation, partial because the division ratio to be 1: 100 in the circumferential counter 209 _6, the period of the clock output from the divider counter 209 ₆ becomes 10 msec. Thus, if the weight data D _WT output from the timer counter 209 ₂ at the timing of key release the key after depressed keys is performer 64H, the key depression operation that lasted 1 second Become. Up signal to be input to the dividing counter 209 ₆
The UP ₂ and the down signal DOWN ₂ will be described later.

Next, the key-on command C _{ON in} FIG. 5 is a command for instructing the start of sounding 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 the stop of the tone generation at the pitch indicated by the key data D _KY .

Returning again to the operation flowchart of FIG. 4, when the player presses the stop switch 202 ₄ (FIG. 2) of the musical instrument operation unit 202, this is detected in S407, and the sequencer light mode ends.

When the sequence data is written up to the final memory address of the automatic performance memory 208 during the performance, the determination in S406 becomes YES, and the sequencer write mode is forcibly ended.

In contrast to the above operation, there is no need for the player 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 S402 becomes NO. As a result, since S403 and S404 are not executed, the CD playback instruction and the CD track number data are stored in the automatic performance memory 20.
8 and no reproduction instruction is given to the CD player unit 100. Then, jump to the processing of S405,
Only the operation of writing the sequence data to the automatic performance memory 208 is executed.

In the sequencer light mode operation described above,
When the CD player unit 100 shown in FIG. 1 reproduces audio data of the CD 105, the audio data is stereo and the CD 105 is reproduced.
It is recorded in. For example, in the left channel, minus one piece of music data in which the melody to be performed by the player is minus is recorded, and in the right channel, data of the melody to be performed by the player is recorded. Further, in the subcode corresponding to the audio data, an instruction code for cutting the right channel at a specific timing according to the progress of the music or over the entire music is recorded as needed. This instruction code is called volume control data. And
When the CD player unit 100 performs playback after the above-described sequencer light mode is selected, the CD control unit 103 controls the musical instrument control unit.
By recognizing that the sequencer light mode has been selected via 201, based on the volume control data detected from the subcode signal processing circuit 110 in FIG.
The amplifier 114 is controlled to cut the channel in which the melody data to be performed by the player is recorded. As a result, it is possible to control so that the audio data of the melody corresponding to the performance operation of the player is not reproduced at the same time as the performance operation of the player, and a favorable effect on the audibility is obtained. This control operation is similarly performed in a sequencer play mode described later. On the other hand, the mode changeover switch 2 of the musical instrument operation unit 202
02 While the normal mode is selected by ₂
When the playback of the player section 100 is performed, since the automatic performance operation is not performed by the electronic keyboard instrument section 200, the CD control section 103
Recognizes the normal mode via the musical instrument control unit 201, so that the above-described channel cut control operation is not performed. Thus, the player can play back the entire music and grasp the image of the whole music before writing or reproducing the automatic performance.

<< Operation in Sequencer Play 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.

The player operates the mode switch 202 ₂ of the musical instrument operation unit 202.
To select the sequencer play mode. Thereby, the musical instrument control unit 201 executes the operation flowchart of FIG.

First, in S601, wait for the player to press the start switch 202 ₃ of the instrument operation unit 202.

When the start switch 202 ₃ is depressed, the flow proceeds to the processing of S602, where the tempo data D _TP automatic performance memory 208 (see FIG. 5) is read, the tempo data D _TP is first
The frequency dividing counter 209 ₆ in the timer circuit 209 of FIG.
Preset to.

Next, in S603, the automatic performance memory 208 is read, and it is determined whether or not a CD playback instruction C _PY (see FIG. 5) is stored in the memory.

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 Has a fifth
As shown, a CD playback instruction _CPY is stored. Therefore, in such a case, the determination in S603 is YES. Thus, in S604, the CD control unit 103 is instructed to reproduce the music on the CD 105. In this case, the CD music number data _DNO is read from the automatic performance memory 208 and transferred to the CD control unit 103, so that the CD control unit 103 starts reproduction from the head of the corresponding music. At this time, the CD control unit 103 recognizes that the sequencer play mode has been selected via the musical instrument control unit 201, as in the case of the above-described playback operation in the sequencer write mode, and the sub code shown in FIG. Based on the volume control data detected from the signal processing circuit 110,
The amplifier 114 is controlled so that the channel on which the melody data to be automatically played is recorded is cut off. As a result, it is possible to control so that the audio data of the melody corresponding to the automatic performance operation is not reproduced at the same time as the automatic performance operation.

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 writing operation is performed on the CD, the CD playback instruction _CPY is not stored in the automatic performance memory 208 (see S402 in FIG. 4). Therefore, in such a case, the determination in S603 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 S604 is not issued.

As described above, after the reproduction instruction is issued to the CD player unit 100, every time the processing of S605 is executed by repeating S605 → S606 → S607 → S605, the automatic performance memory
The memory address 208 is the CD playback instruction C _PY and CD shown in FIG.
The sequence data is read out from each memory address while being sequentially incremented from the next address of the track number data D _NO (if these are not present, the next address of the tempo setting command _CTP and the tempo data _DTP ), and the contents are read out. , An automatic performance operation is performed. The increment operation in this case is executed based on the operation of the timer circuit 209 described later.

Here, for example, the musical instrument control unit 201
For example, when a key-on command C _ON is read from the CPU, the next key data D _KY is further read, and the tone generator 203 is instructed to start generating a tone at a corresponding pitch.

Conversely, instrument control section 201, when read from the automatic playing memory 208 for example key-off command C _OF, further reads the next key data D _KY, in sound at the corresponding pitch relative to the tone generator 203 Instructs the sound to be muted.

Further, the operation of incrementing the address on the automatic performance memory 208 is realized as follows. That is, when instrument control unit 201, reading out the Wait instruction C _WT example from the automatic playing memory 208, further reads the next weight data D _WT, of FIG. 1 or FIG. 3 timer circuit 209
To set the data to the weight counter 209 ₃ of the.
At the same time, the timer circuit 209, timer counter 209 ₂ is reset at the timing of incrementing the previous address, as described below. Then, the above weight data D _WT is set to the wait counter 209 ₃ timing, the count enable signal ENBL from instrument control unit 201 of FIG. 1 in the timer circuit 209 of FIG. 3 is outputted, Hereafter, Fig. 3 timer counter 209 ₂ is sequentially counted up in accordance with the clock from the dividing counter 209 _6. The contents of these timers counters 209 ₂ is set in the output and the weight counter 209 ₃ the weight data D _WT, it is 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 an address for reading data from the automatic performance memory 208. Further, the timer circuit 209 of FIG. 3, the address increment signal INC resets the timer counter 209 ₂ via the OR circuit 209 _5, and resets the wait register 209 _3, the process for the next wait data D _WT Prepare. 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 out to the final memory address of the automatic performance memory 208 during the automatic performance, or when the player presses the stop switch 202 ₄ (FIG. 2) of the musical instrument operation unit 202. In any of the cases, the processing is terminated when they are detected in S606 or S607.

In the automatic performance operation based on the repetition of the above steps S605 to S607, if the music being reproduced causes a skip, for example, because of a scratch on the CD 105, the reproduction of the music and the automatic performance are synchronized. No longer. In such a case,
Player, by operating the UP switch 202 ₇ or DOWN switch 202 ₈ tempo for the skip of the instrument operating section 202 (FIG. 2), can be synchronized as follows.

That is, if during the automatic performance of the above, in the waiting time from one musical performance before moving on to the next play operation, pressing performer example the UP switch 202 ₇ of the instrument operating section 202 once, instrument control section 201 At this time, the program being executed corresponding to the operation flow chart of FIG. 6 is interrupted and its processing is interrupted, and the program corresponding to the operation flow chart of FIG. 7 (a) is executed.
Now, in the waiting time, the timer circuit 209 of FIG. 1 or FIG. 3, the weight data D _WT to wait counter 209 ₃ has been set, the time is measured. In contrast, in S701 of FIG. 7 (a), up pulse UP ₁ the wait counter 209 ₃ is input one, the contents of the wait counter 209 ₃ is +1. Conversely, at the above-mentioned waiting timing, the performer
If you press the WN switch 202 ₈ once, the same interrupt as above, the program corresponding to the operation flowchart in FIG. 7 (b) is performed, in S702, the down pulse DOWN ₁ is one for the wait counter 209 ₃ Input and its contents are decremented by one. And after these interrupts,
Immediately, the process returns to the interrupted processing of the program corresponding to the operation flowchart of FIG.

By the above operation, the wait time to move to the next performance operation from one performance operation, the time until the coincidence circuit 209 ₄ of FIG. 3 detects a match is initially wait counter 20
9 ₃ slower is the timing corresponding to the set wait data D _WT to, or is advanced. Thus, the performer can shift the timing until the next performance operation only by the waiting timing.

Incidentally, in one of the waiting time, pressing even performer times the UP switch 202 ₇ or DOWN switch 202 _8, the operation flowchart of FIG. 7 accordingly (a) or (b) is executed by the interrupt process, the contents of the weight counter 209 ₃ changes sequentially. In other words, the player is, if you want to shift a lot of timing at a certain waiting time, the UP switch 202 ₇ or DOWN switch 202 ₈ may also be pressing continuously many times until the move to the next performance operation.

In this way, the player can not only synchronize the reproduction of the music and the automatic performance by manual operation, but also add a special effect by intentionally shifting the synchronization of a part of the automatic performance.

Next, for example, in the case where the automatic performance operation is performed alone (when the determination in S603 in FIG. 6 is NO), if the user wants to change the tempo of the automatic performance as a whole, the player by operating the UP switch 202 ₅ or DOWN switch 202 ₆ for tempo control of the instrument operating section 202 (FIG. 2),
The tempo control can be performed as follows.

That is, at any time the automatic performance of which is based on the repetition of the processing in FIG. 6 S605～S607, if you press performer example the UP switch 202 ₅ of the instrument operating section 202 once, the instrument control unit 201, the The program being executed is interrupted according to the operation flowchart of FIG. 6, and the program corresponding to the flowchart of FIG. 8A is executed. As a result, in S801 of FIG.
Up pulse UP ₂ is input one for dividing counter 209 ₆ figures, the content of the dividing counter 209 ₆ is +1. Conversely, if you press performer e.g. DOWN switch 202 ₆ once, the same interrupt as above, the program corresponding to the operation flowchart in FIG. 8 (b) is performed, in S802,
Down pulse DOWN ₂ in dividing counter 209 ₆ is one input, the contents of which it is -1. After these interrupt processes, the process immediately returns to the interrupted process of the program corresponding to the operation flowchart of FIG.

Now, the dividing counter 209 _6, at the start of the automatic musical performance, (see FIG. 6 S602) the tempo data D _TP is set which has been stored in the automatic performance memory 208. Therefore, after the above operation, the timer counter 209 ₂ shown in FIG.
There speed is changed to be counted up, the contents of the wait counter 209 _3, even those that read wait data D _WT from the automatic playing memory 208, the coincidence circuit 209 ₄
, The timing at which a match is detected changes as a whole.

Thereby, the player can shift the tempo of the automatic performance as a whole. This operation is a normal tempo change operation.

«Other Embodiments» In the embodiment described above, the performer plays the keyboard 2 in advance in the sequencer light mode while playing the music on the CD 105.
02 ₁ (FIG. 3) is played, and the sequence data is written to the automatic performance memory 208. However, the present invention is not limited to this, and the sequence data is stored in advance in the user's bits of the subcode of the ROM card or CD. The sequence data is automatically stored in the automatic performance memory during automatic performance.
You may make it transfer to 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 automatic performance is performed by the electronic keyboard instrument unit 200 in accordance with the reproduction of the music on the CD 105 by the CD player unit 100. However, the present invention can be applied to a case where the automatic performance is performed alone. . That is, by changing the arbitrary waiting timing during the automatic performance, the operation of the player can be added to the automatic performance.

Naturally, various music reproducing devices other than CD playing can be applied.

Furthermore, in the above-described embodiment, the musical instrument to be automatically played has been described using an electronic keyboard instrument. However, the present invention is not limited to this, and an electronic musical instrument without a keyboard, such as an electronic wind instrument or an electronic kiter, may be used.

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, it is possible to change, in real time, only a specific waiting timing from an arbitrary performance operation to the next performance operation during the automatic performance operation of the sound source means by the automatic performance control means.

In particular, when a reproducing means such as a CD for reproducing the audio data recorded on the recording medium is provided in synchronization with the automatic performance operation of the sound source means by the automatic performance control means, for example, the CD disc may be damaged. Even if the music being played is skipped for some reason or other, and the playback of the music is not synchronized with the automatic performance, the player can operate the tempo skip instructing means to perform the music playback by simple manual operation. It is possible to synchronize the playback with the automatic performance.

Further, in the case where the automatic performance is performed alone, it is also possible to add a special effect by deliberately shifting the synchronization of only a part of the automatic performance.

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]

1 is an overall configuration diagram of one embodiment of the present invention, FIG. 2 is a configuration diagram of a musical instrument operation unit, FIG. 3 is a configuration diagram of a timer circuit, and FIG. 4 is an operation flowchart in a sequencer light mode. FIG. 5 is a data configuration diagram of an automatic performance memory, FIG. 6 is an operation flowchart of a sequencer play mode, FIGS. 7 (a) and (b) are operation flowcharts of a tempo skip, and FIG. 8 (a). (B) is an operation flowchart of tempo control. 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, 11
5, 207: Speaker, 200: Electronic keyboard instrument part, 201:
Instrument control unit, 202: Instrument operation unit, 203: Tone generator, 208: Automatic performance memory, 209: Timer circuit.

Claims (5)

(57) [Claims] An automatic performance data storage means for storing automatic performance data; an automatic performance data storage means for storing the automatic performance data stored in the automatic performance data storage means; Automatic performance control means for performing the following; a tempo skip instructing means for instructing the user to perform a tempo skip; and performing an automatic performance operation by the automatic performance control means in the sound source means from an arbitrary performance operation to a next performance operation. Temporal skip control means for controlling the automatic performance control means in response to the operation of the tempo skip instructing means to change only the time length of the wait timing when the tempo skip instructing means is operated by the user at a wait timing until the transition. An automatic performance device comprising: 2. The automatic performance data includes weight data indicating the time length of the waiting timing. The automatic performance control means, when reading the weight data from the automatic performance data storage means, By measuring a time length indicated by weight data, the automatic performance data storage means has a wait timing control means for controlling a wait timing until the next automatic performance data is read out, the tempo skip control means, The automatic performance device according to claim 1, wherein a time length indicated by the weight data measured by the timing control means is changed according to an operation of the tempo skip instructing means by a user. 3. The wait timing control means includes weight data storage means for storing weight data sequentially read from the automatic performance data storage means, and measures time from the timing at which the weight data is written into the weight data storage means. Timer means for performing the operation, and instructing means for instructing reading of the next automatic performance data from the automatic performance data storage means when the time measured by the timer means matches the storage content of the weight data storage means. 3. The automatic performance apparatus according to claim 2, wherein said tempo skip control means changes the storage content of said weight data storage means in response to an operation of said tempo skip instructing means by a user. 4. A reproducing apparatus for reproducing audio data recorded on a recording medium in synchronization with an automatic performance operation of said sound source means by said automatic performance control means. 4. The automatic performance device according to 2 or 3. 5. The automatic performance device according to claim 1, wherein the performance operation means for allowing the user to perform a performance operation, and the reproduction means reproduces the audio data.
Alternatively, the user can perform a performance operation using the performance operation means alone, and sequentially writes performance information output from the performance operation means in accordance with the performance operation into the automatic performance data storage means as the automatic performance data. 5. The automatic performance apparatus according to claim 1, further comprising: data writing means.