JPH06301377A - Automatic player - Google Patents

Abstract

PURPOSE:To provide the automatic player which can exactly specify play support data in a short period of time when restarting play after fast rewind. CONSTITUTION:Concerning an automatic player 1, a play control means 2 reads play data out of a play data storage medium 5 for previously storing the play data composed of time data, music data corresponding to the time data and the play support data, and the automatic player 1 performs control so as to enable automatic play including replay from a relevant position when a piece of music is fast rewound from the middle or the end to any arbitrary position based on the play data. This automatic player is provided with a history data storage means 3 to store history data, for which the read time data and play support data are paired, in the order of reading and the play control means 2 stores the history data in the history data storage means 3, reads the stored history data oppositely to the order of storage in the case of fast rewinding and decides the play support data at the start position of replay based on the read history data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device,
More specifically, the present invention relates to an automatic performance device that performs automatic performance based on performance data stored in advance.

[0002]

2. Description of the Related Art Generally, an automatic performance device is composed of time data stored in a storage medium such as a floppy disk, musical tone data of pitch, strength and duration of tone, and performance auxiliary data for tone color setting. The performance data consisting of is sequentially read, and the automatic performance is performed based on the performance data. Specifically, at the time of normal reproduction, musical tones and timbres are generated based on the musical tone data and the performance auxiliary data, respectively, in accordance with the timing of the pronunciation indicated by the time data. When fast-forwarding, the performance data is read out faster than during normal performance while the sound is stopped.When switching to normal performance, the performance data is read at the normal speed and the performance is automatically performed according to the performance data. It is carried out.

However, fast rewind cannot be performed in the same manner as fast forward. That is, since all the musical tone data have a one-to-one correspondence with the time data, it is possible to specify the musical tone to be sounded at any position of the music based on the performance data at that time. On the other hand, the performance assisting data is used so that once it is designated, it is valid until another designation is made. Therefore, during normal performance or fast-forwarding, if you sequentially read from the beginning of the song, you can accurately identify the performance assistance data even in the middle of the song, but when replaying after fast rewind, the performance assistance data is It is not possible to specify at what position in the song and how it changed. Therefore, when replaying after rewinding, the time data at the time of switching to the replay is stored in advance, and all performance auxiliary data up to the song position indicated by the stored time data is stored. Are sequentially read by fast-forwarding, and the performance assistance data at the position of the music to start the re-performance is determined to perform the automatic performance.

[0004]

However, the conventional automatic performance device has the following problems. That is, when replaying, it is necessary to read the performance assistance data after returning to the beginning of the music, so it takes time to start the replaying. In particular, when the replay start position is near the end of the song, it takes a long time because the length from the beginning of the song to the replay position is long.

The present invention has been made in view of the above problems, and an automatic performance capable of accurately specifying the performance assist data in a short time at the time of starting the re-performance after rewinding. The purpose is to provide a device.

[0006]

In order to achieve the above object, an automatic performance apparatus according to claim 1 of the present invention comprises time data for determining sounding timing, and musical tone data and performance auxiliary data corresponding to the time data. The performance control means reads out the performance data from the performance data storage medium that stores in advance the performance data, and, based on the read performance data, when performing quick rewinding from the middle or end of the music to any position of the music, In an automatic performance device for controlling automatic performance including replay from a position, a history data storage means is provided for storing history data in which read time data and performance auxiliary data are paired in the order of reading. Then, the performance control means stores the history data in the history data storage means, and at the time of fast rewind, the stored history data is read out in the reverse order of the storage order. The musical performance assistance data starting position of re-played, and determines based on the read history data.

According to a second aspect of the present invention, in the automatic performance device according to the first aspect, the performance control means pairs the read time data with the performance assistance data immediately before the performance assistance data corresponding to the time data. And stored in the history data storage means.

[0008]

According to the above-mentioned automatic musical instrument of the first aspect, the musical performance control means preliminarily stores musical performance data consisting of time data for determining sounding timing, musical tone data corresponding to the time data and musical performance auxiliary data. The performance data is read from the performance data storage medium to be stored. Then, the performance control means controls, based on the read performance data, to enable automatic performance including replay from that position when the song is rewound from the middle or end of the song to an arbitrary position of the song. . Further, the performance control means causes the history data storage means to store history data in which the read time data and performance assistance data are paired in the order of reading. Then, at the time of rewinding, the performance control means reads the stored history data in the reverse order of the storage order, and determines the performance auxiliary data at the replay start position based on the read history data. . Therefore, the performance assistance data at the start of the re-performance is immediately determined.

Further, according to the automatic performance device of claim 2, in the automatic performance device of claim 1, the performance control means sets the read time data immediately before the performance assistance data corresponding to the time data. And stored in the history data storage means as a pair with the performance assistance data. Then, at the time of rewinding, the performance control means reads the stored history data in the reverse order of the storage order, and determines the performance auxiliary data at the replay start position based on the read history data. . Therefore, the performance assistance data at the start of the re-performance after the fast-reverse operation is immediately determined based on the performance assistance data of the history data which has already been read by that time.

[0010]

The preferred embodiments of the present invention will be described below in detail. Reference numeral 1 in the system diagram shown in FIG. 1 is an automatic performance device, which is also used as an electronic keyboard instrument. Reference numeral 2 shown in the figure is a CPU (microcomputer) as performance control means, and the CPU 2 has a RAM.
(History data storage means) 3, ROM 4, performance data RO
An M (performance data storage medium) 5 and a tone generator LSI 6 are connected to each other by a bus line 7. Also, this CPU2
The keyboard 8 is connected to the input port of, and the panel section 9 and the MIDI signal interface 1 are connected to the input / output ports.
0 is connected. Of these, the panel section 9 is provided with operation switches such as a reproduction switch 11 and a fast-reverse switch 12, and a display 13. Also, the sound source LS
I6 is connected to the speaker 15 via the amplifier 14.

The operation of the automatic performance device 1 will be briefly described. When the performer designates a desired music piece number with a ten-key switch (not shown), the music piece number is displayed on the display 13. And the reproduction switch 11
When is pressed, playback is displayed on the display 13 and performance is started. Under the control of the CPU 2, the sound source LSI
A musical tone signal is output from 6, is amplified by the amplifier 14, and a musical tone is generated from the speaker 15. If you want to play the already played part again after or during the performance,
When the fast rewind switch 12 is pressed, the fast rewind display is displayed on the display 13 and the fast rewind is performed. And
At the position of the song you want to start replaying, press the play switch
When you press, fast rewind ends, and the performance starts again from that position.

Next, the components of the automatic performance device 1 will be described in detail. The CPU 2 reads performance data, which is stored in the performance data ROM 5 and is composed of time data for determining sounding timing, and musical tone data and performance auxiliary data corresponding to the time data, and based on the read performance data, When the normal performance is performed from the beginning of the song, or when the song is rewound from the middle or end of the song to an arbitrary position of the song, automatic control such as replay from that position is possible. Then, the CPU 2 reads the time data and the performance assistance data stored in the RAM 3 in the reverse order to the stored order at the time of fast rewind,
The performance assistance data at the replay start position is determined based on the read time data and performance assistance data.

The RAM 3 stores temporary calculation data of the CPU 2 and history data, which is read by the CPU 2 during a normal performance, and which is a pair of time data and performance auxiliary data, in the order of reading. Also, this RAM3
Are backed up by a lithium battery (not shown) so that the stored contents are not lost.

The ROM 4 stores an operation program for operating the CPU 3.

The performance data ROM 5 is a storage medium such as a floppy disk or a compact disk, and stores performance data of a plurality of performance songs. Specifically, the performance data is configured by associating time data with performance data representing the pitch, strength, and length of a musical tone and performance auxiliary data for setting a tone color. Here, the time data represents the timing for producing a musical sound corresponding to the tempo of the music, and specifically, indicates a specific position of the music such as the third beat of the second measure. .

The MIDI signal interface 10 carries out serial communication of MIDI signals with an external MIDI device under the control of the CPU 2.

The tone generator LSI 6 generates a musical tone signal of a predetermined tone color corresponding to the performance data output from the CPU 2 and the key number data output from the keyboard 8. Therefore, the tone generator LSI 6 preliminarily samples, for example, musical tone waveforms of a plurality of tones such as a piano and an organ at a predetermined sampling frequency, and sets each amplitude value to 16
PCM (Pulse Code Modulat) consisting of binary code of bits
Ion) The data converted into wave data is stored in a predetermined address of a built-in tone wave ROM. Also,
The tone generator LSI 6 has a built-in tone generation unit that generates an envelope of a predetermined tone, an amplitude control circuit that sets the tone to a predetermined amplitude, and a D / A converter that converts a digital tone signal into an analog tone. .

Next, as a first embodiment of the present invention, writing of history data at the time of fast rewinding and reading at the time of replay after fast rewinding will be described with reference to FIGS.

First, the relationship between time data and performance auxiliary data will be described with reference to FIG. As shown in the figure, the time data includes T0, T1 ... Tm-3, from the beginning of the song.
Tm-2, Tm-1, Tm ... Are arranged at predetermined time intervals, and for example, time data Tn = Tm-4.
Indicates the position of the song such as the 4th beat of the 3rd measure and determines the performance timing. Further, the performance assistance data has a paired relationship with the time data, and the timbre No. at the position of the music specified by the time data. Indicates.
Specifically, for example, the musical tone generated at the performance timing indicated by the time data Tn = Tm-4 becomes the tone color indicated by the performance assistance data Dn-2. Further, once the performance assistance data is designated, it is handled so as to be valid unless another performance assistance data is designated next. Therefore, this performance assistance data is specified only when the beginning of the music and the tone color are changed. Although not shown in the figure, performance data is designated corresponding to all time data.

Next, writing of history data at the time of fast rewind will be described. CPU2 is performance data ROM5
The performance data is read from the memory, and the performance data and the performance auxiliary data are output to the tone generator LSI 6 at the timing indicated by the time data. At that time, the performance auxiliary data is written in the RAM 3 together with the time data as history data. Figure 3
Explaining using (a), the same figure shows the contents of the history data written in the RAM 3. according to this,
RAM3 is the position order (performance order) of the music shown in the time data
In addition, time data and performance auxiliary data corresponding to the time data are stored at consecutive addresses. In this case,
When the performance auxiliary data stored in the performance data ROM 5 is designated corresponding to all time data, that is, when the performance auxiliary data is not changed, the CPU 2
Writes in the RAM 3 only the performance assisting data and the time data when the designated contents are changed. That is, in FIG. 2, for example, when the performance assistance data Dn-1 and the performance assistance data Dn have the same contents, the performance data Dn and the time data Tn = Tm-2 are not written in the RAM 3. Also, at the time of this writing, a code for specifying the performance assistance data,
As the value n in the above example, a code that is continuous from the beginning of the song is used.

Next, reading of history data will be described with reference to FIG. As will be described later in detail, the CPU 2 reads history data in the reverse order of the stored order at the time of fast rewinding, writes the history data in a register built in the CPU 2, and when new history data is read,
Rewrite the contents of that register.

Next, the writing operation of the history data at the time of fast rewinding and the reading operation at the time of replay after the fast rewinding will be specifically described with reference to the flowcharts of FIGS.

First, writing of history data during reproduction will be described with reference to FIG. When the performance music is designated (step 21), the CPU 2 sets the value of the performance data read pointer indicating the address for reading the performance data from the performance data ROM 5 to T0, and the performance data corresponding to the value is set to the performance data. It is read from the ROM 5 (step 22), and it is monitored whether or not the performance data includes performance auxiliary data (step 23). C
If there is no performance assistance data, PU2 adds 1 to the value of the performance data read pointer, and then executes step 22,
Repeat 23. On the other hand, if there is performance assistance data, the CPU 2 writes the time data Tn in the RAM 3 (step 24), writes the performance assistance data Dn in pairs with the time data Tn (step 25), and writes this history data. End the flow (step 2)
6).

Next, reading of history data will be described with reference to FIG. In this flow, the CPU 2 writes the history data during the automatic performance of the tune (step 30), and monitors whether or not the fast-reverse switch 12 is pressed (step 31), and if not pressed, it is pressed. Until that monitoring continues. When the fast return switch 12 is pressed, the CPU 2 reads the time data Tm corresponding to the value Tm of the performance data reading pointer at that time from the performance data ROM 5 (step 32). next,
The CPU 2 reads the time data Tn of the final history data (history data written last) (step 3).
3). After that, the CPU 2 determines whether or not the time data Tn is equal to the performance data read pointer value Tm (step 34).

When it is determined in step 34 that they are equal to each other, the CPU 2 reads the performance auxiliary data Dn-1 stored in pair with the time data Tm-1 immediately before the time data Tn ( At the same time as step 35), the performance assistance data Dn-1 is output to the tone generator LSI 6 to change the contents of the performance assistance data (step 36). Next, CP
U2 changes the value of the performance assistance data read pointer indicating the address for reading the next performance assistance data written in the RAM3 from Dn-1 to Dn-2 (step 37), and changes the value of the performance data read pointer. T
Change from m to Tm-1 (step 38).

When it is determined in step 34 described above that they are not equal, the CPU 2 carries out the operation of step 38 described above.

After performing step 38, the CPU 2 again monitors whether or not the fast return switch 12 has been turned off (step 39). As a result, the quick rewind switch 12 is turned off.
When the FF is not performed, the CPU 2 returns to step 32, and reads the time data of the value indicated by the performance data read pointer (in this case, Tm-1),
After that, steps 33 to 39 are repeated, and this flow is repeated until the fast return switch 12 is turned off. on the other hand,
The CPU 2 ends this flow when the fast-reverse switch 12 is turned off.

As described above, the performance auxiliary data at the start of the replay is determined by reading the performance auxiliary data paired with the time data immediately before the time data at the start position of the replay from the RAM 3, and as a result, The tone at that time is specified.

Next, a second embodiment of the present invention will be described. In the present embodiment, the performance assistance data is written in pairs with the time data at that time and the performance assistance data immediately before the replay start position is read out in the first embodiment described above. The data is written as a pair with the time data immediately before it, and the performance auxiliary data at the re-play start position is read.

First, writing and reading of history data will be described. As shown in FIG. 6, time data Tm
-2 is written in the RAM 3 as a pair with the performance assistance data Dn-1 immediately before the corresponding performance assistance data Dn, and when read, it is read out in the reverse order of the written order.

Next, the operation of writing the history data at the time of fast rewinding and the read operation at the time of starting the replay after the fast rewinding in this case will be specifically described with reference to the flowcharts of FIGS.

First, regarding the writing of history data, FIG.
Steps 51 to 54 in FIG.
Is performed in the same manner as steps 21 to 24 in FIG. After that, the CPU 2 writes the performance assistance data of different contents immediately before the performance assistance data corresponding to the time data Tn in pairs in the RAM 3 (step 55), and thereafter ends this flow (step 56).

Next, the reading of history data will be described with reference to FIG. 8. Steps 60 to 64 in FIG.
Is performed in the same manner as steps 31 to 34 in FIG. After that, the CPU 2 reads the performance auxiliary data Dn written together with the time data Tn (step 65). Then, the performance assistance data Dn is used as the sound source LS.
It is output to I6 to change the contents of the performance assistance data (step 66). Next, the CPU 2 changes the value of the performance auxiliary data read pointer from Dn to Dn-1 (step 67). Steps 68 and 69 are performed in the same manner as steps 38 and 39 in FIG. 5, and this flow ends. As a result, the performance assistance data at the start of re-performance is determined.

As described above in detail, the automatic performance device 1 of the present invention stores the performance auxiliary data and the time data in the RAM 3, and at the time of fast rewind, reads in the reverse order to the stored order, When replaying after fast-forwarding, it is not necessary to return to the beginning of the music and read all the performance auxiliary data because the tone color can be specified by the read performance auxiliary data. Therefore, the time required to restart the replay is shortened. In particular, when a slight quick rewind is performed, the reduction in time becomes extremely large.

As historical data, time data is
If the performance assistance data corresponding to the time data is written as a pair with the performance assistance data immediately before, the performance assistance data written together with the time data can be directly output to the tone generator LSI at the start of re-performance after fast rewind. Since it is good, the time can be further shortened.

The present invention is not limited to the above embodiment. For example, the operation is not limited to the flowcharts shown in the embodiments, and the operation can be changed without changing the gist of the present invention.

It is also applicable to the case where the performance data read from the automatic performance data ROM is temporarily stored in the automatic performance device 1 and an automatic performance is performed based on the stored performance data.

Further, the history data may include musical tone data. Also, after fast-forwarding from the beginning of the song,
The present invention can also be applied to the case where fast rewind is performed at an arbitrary position of the song and then replay is performed. In this case, at the time of fast-forwarding, the reading speed of the performance data is set to be higher than that at the time of normal performance and the performance data RO
The history data may be read from the RAM 3 in the same manner as in the present embodiment when reading from M5, writing to the RAM 3, and performing fast rewind.

[0039]

As described above, according to the present invention, the performance assist data can be accurately specified in a short time when the replay is started after the fast rewind.

[Brief description of drawings]

FIG. 1 is a block diagram of an automatic performance device according to the present invention.

FIG. 2 is a diagram showing a relationship between time data and performance assistance data.

FIG. 3 is a diagram for explaining writing and reading of history data in the first embodiment.

FIG. 4 is a flowchart for explaining writing of history data during a performance in the first embodiment.

FIG. 5 is a flow chart for explaining the reading of history data during fast-forwarding in the first embodiment.

FIG. 6 is a diagram for explaining writing and reading of history data in the second embodiment.

FIG. 7 is a flow chart for explaining reading of history data during fast-forwarding in the second embodiment.

FIG. 8 is a diagram for explaining writing and reading of history data in the second embodiment.

[Explanation of Codes] 1 Automatic performance device 2 CPU 3 RAM 5 Performance data ROM 11 Reproduction switch 12 Rewind switch

Claims (2)

[Claims] 1. A performance data storage medium storing in advance performance data composed of time data for determining sounding timing, and musical sound data and performance auxiliary data corresponding to the time data, and a performance control means for causing the performance control means to store the performance data. And an automatic performance device that controls so as to enable automatic performance including replay from that position when the song is played back from the middle or end of the song to an arbitrary position of the song based on the read performance data. In history data storage means for storing history data paired with the read time data and performance assistance data in the order of reading, wherein the performance control means stores the history data in the history data storage means. When storing and rewinding, the stored history data is read out in the reverse order of the storage order, and the performance assist data at the start position of the replay is read. The data, automatic performance apparatus and determines on the basis of the read history data. 2. The performance control means stores the read time data in the history data storage means in pairs with the performance assistance data immediately before the performance assistance data corresponding to the time data. The automatic performance device according to claim 1.