JP3098352B2 - Automatic performance device - Google Patents

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 an automatic performance based on performance data stored in advance.

[0002]

2. Description of the Related Art In general, an automatic performance device includes time data stored in a storage medium such as a floppy disk, musical tone data of pitch, intensity, and length, and performance auxiliary data for setting tone color. Are sequentially read, and an automatic performance is performed based on the performance data. More specifically, during normal reproduction, a tone and a tone are generated based on the tone data and the performance auxiliary data in accordance with the tone generation timing indicated by the time data. At the time of fast forward, the performance data is read out faster than at the time of the normal performance while the sound is stopped, and at the time of switching to the normal performance, the performance data is read at the normal speed, and the automatic performance is 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 tone data correspond to the time data on a one-to-one basis, a tone to be generated can be specified at any position of the music based on the performance data at that time. On the other hand, the performance auxiliary data is used in such a way that once specified, it is valid until the next different specification is made. Therefore, at the time of normal performance or fast-forwarding, by reading sequentially from the beginning of the song, the performance auxiliary data can be accurately specified even in the middle of the song, but at the time of replay after fast rewind, the performance auxiliary data is It is not possible to specify where and how the song has changed. Therefore, at the time of replay after fast rewind, the time data at the time of switching to the replay is stored in advance, and the program returns to the beginning of the song and returns all the performance auxiliary data up to the position of the song indicated by the stored time data. Are sequentially read in a fast-forward manner, the performance auxiliary data at the position of the music to be restarted is determined, and the automatic performance is performed.

[0004]

However, the conventional automatic performance apparatus has the following problems. That is, at the time of replay, it is necessary to read the performance auxiliary data after returning to the beginning of the music, so that it takes time to start the replay. In particular, when the start position of the replay is near the end of the song, it takes a long time since the position from the beginning of the song to the position where the replay is performed is long.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has been made in consideration of the above-described problems. It is intended to provide a device.

[0006]

In order to achieve the above object, an automatic performance apparatus according to a first aspect of the present invention comprises time data for determining sounding timing, musical sound 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 which stores the performance data consisting of the following in advance. in an automatic performance device which automatic performance is controlled to be capable of including re playing from the position, read
History data storage means for storing history data in which the time data of the performance data and the performance auxiliary data are paired in the reading order ; fast-return instructing means for instructing fast rewind of the music;
Replay start instructing means for instructing start of replay of music
And, have, performance control means, is stored in the history data storage means the historical data during a performance of the song, to rewind instruction means
When you are instructed to rewind a song,
In both cases, the history data stored in the history data storage
The data, read out in the storage order and reverse order, re-play start instruction manual
Read when the start of replay is instructed by the column
Performance auxiliary data at the start of replay based on history data
Is determined .

According to a second aspect of the present invention, in the automatic performance apparatus according to the first aspect, the performance control means includes the read performance.
And time data of the response rate data, historical data, which in pairs and playing auxiliary data of the previous performance auxiliary data corresponding to the time data
Data in the history data storage means, and
Do not correspond to the time data of the music performance data
However, the history data is read out in the reverse order of the storage order .

[0008]

According to the automatic performance device of the first aspect, the performance control means preliminarily stores the performance data including the time data for determining the sounding timing, the musical sound data corresponding to the time data, and the performance auxiliary data. The performance data is read from the stored performance data storage medium. Then, based on the read performance data, the performance control means controls the automatic performance including re-performance from that position when rewinding from the middle or end of the music to an arbitrary position of the music. . Specifically, first, the music performance data
While reading the performance sequentially from the performance data storage medium.
Time data of the performance data being read
History data, which is a pair of
In the order in which the data is read out.
During play or at the end of a song, the fast reverse
When instructed to rewind, the song is rewinded and the history data is restored.
The history data stored in the data storage means is stored in the storage order.
Read sequentially in reverse order. And a re-performance start instruction means
Was read when the start of replay was instructed by
Performance auxiliary data at the start of replay based on history data
To determine. In other words, after a fast rewind command is issued,
Until the start is instructed, the song will be searched backwards
And read the history data back
Then, the history data when the replay start is instructed, for example,
The performance auxiliary data of the history data read last
Determined as performance auxiliary data at the start of re-performance. to this
After the replay start instruction by the replay start instruction means,
Quickly determine appropriate performance auxiliary data at the start of replay
Using the performance auxiliary data,
Replay can be started properly and in a short time.

Further, according to the automatic performance device according to the second aspect, in the automatic performance device according to the first aspect, the performance controller
The columns show the time data of the read performance data and the time
Performance auxiliary data immediately before the performance auxiliary data corresponding to the data
History data paired with the data in the history data storage means.
Remember. And the time of the performance data of the song accompanying the fast reverse
The history data is stored in the reverse order
Read in the beginning, and at this time, start replaying is instructed
And the performance auxiliary data of the history data read last,
It will be appropriate at the start of the replay. In other words, each other
Two different performance auxiliary data and each pair of time data
(For example, time t1 and time
Between t2. t1: Time at the beginning of the song, t2: End of the song
Time), the performance auxiliary data to be used for performance is
Performance auxiliary data set at time t1 at the beginning of the song
Therefore, the start of replay between time t1 and time t2 is
When indicated, an appropriate performance auxiliary data at the start of replay
The performance auxiliary data at time t1
Can be read out as performance auxiliary data at time t2.
Wear. Therefore, the appropriate performance auxiliary data already read
Data as performance auxiliary data at the start of replay
The replay after rewinding is almost the same as the replay start instruction.
Can be started in a shorter time.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described below in detail. Reference numeral 1 in the system diagram shown in FIG. 1 denotes 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.
(History data storage means) 3, ROM 4, performance data RO
An M (performance data storage medium) 5 and a tone generator LSI 6 are interconnected by a bus line 7. Also, this CPU 2
The keyboard 8 is connected to the input port of the controller 9 and the panel unit 9 and the MIDI signal interface 1 are connected to the input / output port.
0 is connected. The panel unit 9 is provided with operation switches such as a reproduction switch 11 and a fast rewind switch 12, and a display 13. Also, the sound source LS
I6 is connected to a speaker 15 via an amplifier 14.

To explain the outline of the operation of the automatic performance apparatus 1, when a player designates a music number of a desired music piece with a ten-key switch (not shown), the music number is displayed on the display 13. And the playback switch 11
Is pressed, a reproduction is displayed on the display 13 and a performance is started, and the sound source LSI is controlled under the control of the CPU 2.
6 outputs a tone signal, which is amplified by the amplifier 14 and a tone is emitted from the speaker 15. If you want to replay a part that has already been played after or during a performance,
When the fast-reverse switch 12 is pressed, fast-reverse is displayed on the display 13 and fast-reverse is performed. And
At the position of the song for which you want to start replaying,
When is pressed, the fast reverse is completed and the performance is resumed from that position.

Next, the components of the automatic performance device 1 will be described in detail. The CPU 2 reads out the performance data, which is stored in the performance data ROM 5 and is composed of time data for determining the sound generation timing, musical tone data and performance auxiliary data corresponding to the time data, and based on the read performance data, Control is performed so that automatic performance such as normal performance performed from the beginning of a song or replay from that position when a song is quickly returned to an arbitrary position in the song from the middle or end of the song. Then, at the time of rewinding, the CPU 2 reads out the time data and the performance auxiliary data stored in the RAM 3 in the reverse order of the stored order,
The performance auxiliary data at the start position of the re-performance is determined based on the read time data and the performance auxiliary data.

The RAM 3 stores temporary calculation data of the CPU 2, and stores history data, which is read by the CPU 2 during normal performance, in which time data and performance auxiliary data are paired, in the reading order. Also, this RAM3
Is backed up by a lithium battery (not shown) so that 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 music pieces. Specifically, the performance data is composed of performance data representing the pitch, intensity, and length of a musical tone, and performance auxiliary data for setting a tone color, in association with time data. Here, the time data represents the timing for generating a musical tone in accordance with the tempo of the music, and specifically indicates a specific position of the music, for example, the second bar and the third beat. .

The MIDI signal interface 10 performs serial communication of MIDI signals with an externally provided MIDI device under the control of the CPU 2.

The tone generator LSI 6 generates a tone signal of a predetermined tone corresponding to the performance data output from the CPU 2 and the key number data output from the keyboard 8. For this reason, the tone generator LSI 6 samples a plurality of tone waveforms of a plurality of timbres, such as a piano and an organ, at a predetermined sampling frequency in advance, and sets the amplitude value of each tone waveform to 16 or more.
PCM (Pulse Code Modulat) consisting of binary code of bits
ion) The data converted into the wave data is stored at a predetermined address of a built-in tone waveform ROM. Also,
The tone generator LSI 6 includes a tone generator for generating an envelope of a predetermined tone, an amplitude control circuit for setting the tone to a predetermined amplitude, and a D / A converter for converting a digital tone signal into an analog tone. .

Next, a description will be given, with reference to FIGS. 2 and 3, of writing of history data at the time of fast rewinding and reading at the time of replay after the fast rewinding as the first embodiment of the present invention.

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 is T0, T1,.
Are arranged at predetermined time intervals such as Tm-2, Tm-1, Tm,..., For example, time data Tn = Tm-4
Indicates the position of the song, such as the third bar and the fourth beat, and determines the timing of the performance. The performance auxiliary data is paired with the time data, and the timbre No. at the position of the music identified by the time data. Is shown.
Specifically, for example, the musical tone generated at the performance timing indicated by the time data Tn = Tm-4 has the tone color indicated by the performance auxiliary data Dn-2. Also, once the performance auxiliary data is specified, it is handled so as to be valid unless another different performance auxiliary data is specified. Therefore, the performance auxiliary data is specified only when the beginning of the music and the timbre are made different. Although not shown in the figure, the performance data is specified corresponding to all time data.

Next, the writing of the history data at the time of fast rewind will be described. The CPU 2 has a performance data ROM 5
Then, the performance data and the auxiliary performance data are output to the tone generator LSI 6 at the timing indicated by the time data, and the performance auxiliary data is written into the RAM 3 together with the time data as history data. Specifically, FIG.
This will be described with reference to (a). FIG. 3 shows the contents of the history data written in the RAM 3. according to this,
The RAM 3 is arranged in the order of the position of the music indicated by the time data (the order of performance).
The time data and the corresponding performance auxiliary 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 there is no change in the performance auxiliary data, the CPU 2
Writes only the performance auxiliary data and the time data when the designated content changes into the RAM 3. That is, in FIG. 2, for example, when the contents of the performance auxiliary data Dn−1 and the performance auxiliary data Dn are equal, the performance data Dn and the time data Tn = Tm−2 are not written in the RAM 3. In addition, at the time of writing, a code for specifying performance auxiliary 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 the history data will be described with reference to FIG. As will be described in detail later, the CPU 2 reads the history data in the reverse order to the stored order at the time of fast rewind, writes the history data in a register built in the CPU 2, and reads new history data,
Rewrite the contents of the 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 described in detail with reference to the flowcharts of FIGS.

First, writing of history data at the time of reproduction will be described with reference to FIG. When a music piece is designated (step 21), the CPU 2 sets the value of a performance data read pointer indicating the address at which the performance data is read from the performance data ROM 5 to T0, and sets the performance data corresponding to the value 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 auxiliary data, PU2 adds 1 to the value of the performance data read pointer, and then proceeds to step 22,
Repeat 23. On the other hand, if there is performance auxiliary data, the CPU 2 writes the time data Tn into the RAM 3 (step 24), and writes the performance auxiliary data Dn in pairs with the time data Tn (step 25), and writes the 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 music (step 30), monitors whether or not the fast reverse switch 12 has been pressed (step 31). 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 read pointer at that time from the performance data ROM 5 (step 32). next,
The CPU 2 reads the time data Tn of the last history data (last written history data) (step 3).
3). Thereafter, the CPU 2 determines whether or not the time data Tn is equal to the performance data read pointer value Tm (step 34).

If it is determined in step 34 that they are equal to each other, the CPU 2 reads out the performance auxiliary data Dn-1 stored in pairs with the time data Tm-1 which is one time earlier than the time data Tn ( Along with step 35), the performance auxiliary data Dn-1 is output to the tone generator LSI 6 to change the contents of the performance auxiliary data (step 36). Next, CP
U2 changes the value of the performance auxiliary data read pointer indicating the address for reading the next performance auxiliary data written in the RAM 3 from Dn-1 to Dn-2 (step 37), and changes the value of the performance data read pointer to Dn-2. T
m is changed to Tm-1 (step 38).

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

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

As described above, by reading out 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, the performance auxiliary data at the start of the replay is determined. The tone at that time is specified.

Next, a second embodiment of the present invention will be described. This embodiment is different from the first embodiment in that the performance auxiliary data is written in pairs with the time data at that time, and the performance auxiliary data immediately before the replay start position is read out. The data is written in pairs with the immediately preceding time data, and the performance auxiliary data at the replay start position is read.

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

Next, the operation of writing the history data at the time of fast rewind and the operation of reading the replay performance after the fast rewind in this case will be described in detail with reference to the flowcharts of FIGS.

First, writing of history data is described with reference to FIG.
This will be described with reference to FIG.
Is performed in the same manner as steps 21 to 24 in FIG. Thereafter, the CPU 2 writes the performance auxiliary data having different contents immediately before the performance auxiliary data corresponding to the time data Tn into the RAM 3 as a pair (step 55), and thereafter ends this flow (step 56).

Next, the reading of the history data will be described with reference to FIG.
Is performed in the same manner as steps 31 to 34 in FIG. Thereafter, the CPU 2 reads the performance auxiliary data Dn written together with the time data Tn (step 65). Then, the performance auxiliary data Dn is transmitted to the sound source LS
The data is output to I6 to change the contents of the performance auxiliary 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. Thus, the performance auxiliary data at the start of the re-performance is determined.

As described in detail above, the automatic performance device 1 of the present invention stores the performance auxiliary data and the time data in the RAM 3 and reads them in the reverse order of the stored order at the time of fast rewind. At the time of replay after fast-forwarding, the timbre can be specified by the read performance auxiliary data, so that it is not necessary to return to the beginning of the music and read all the performance auxiliary data from the beginning. Therefore, the time until re-performance is restarted is reduced. In particular, when a slight rewind is performed, the time reduction becomes very large.

Further, time data is used as history data.
If the performance auxiliary data corresponding to the time data is written in pair with the performance auxiliary data immediately before the performance auxiliary data, the performance auxiliary data written together with the time data is directly output to the tone generator LSI at the start of the replay after fast rewind. As a result, the time can be further reduced.

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

The present invention is also applicable to a 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.

Furthermore, the history data may include musical sound data. Also, after fast-forwarding from the beginning of the song,
The present invention can also be applied to a case where fast rewind is performed at an arbitrary position of the song and then replayed. In this case, at the time of fast-forwarding, the performance data reading speed is set to be faster than during the normal performance to make the performance data RO.
At the time of reading from M5, writing to RAM3, and at the time of fast rewind, history data may be read from RAM3 in the same manner as in this embodiment.

[0039]

As described above, according to the present invention, the music is quickly returned.
If you want to play again, promptly
It is possible to determine the appropriate performance auxiliary data at the start of the performance.
Replay after fast rewind using the performance auxiliary data.
It can be started properly and in a short time.

[Brief description of the 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 auxiliary data.

FIG. 3 is a diagram for describing 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 flowchart for explaining reading of history data at the time of 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 flowchart for explaining reading of history data at the time of 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 symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic performance apparatus 2 CPU 3 RAM 5 Performance data ROM 11 Reproduction switch 12 Rewind switch

Claims (2)

(57) [Claims] 1. A performance control unit, comprising: a performance data storage medium that previously stores performance data including time data for determining a sounding timing and musical sound data and performance auxiliary data corresponding to the time data; Based on the read performance data, and when performing a quick return from the middle or the end of the music to an arbitrary position of the music, an automatic performance device that controls so that automatic performance including replay from that position is possible. A history data storage means for storing history data in which the time data of the read performance data and the performance auxiliary data are paired, in a reading order; a fast rewind instruction means for instructing a fast rewind of the music; Replay start instructing means for instructing start of replay of music
When have the performance control unit, the historical data during a performance of the song is stored in the history data storage means, the rewind instruction means
Rewind the song when instructed to rewind the song by
And stored in the history data storage means.
Read the history data in the reverse order of the storage order,
A replay start is instructed by the replay start instructing means.
Replay based on the read history data
An automatic performance device for determining performance auxiliary data at the start of a performance . 2. The musical performance control means according to claim 1 , wherein
A pair of the performance data time data and the performance auxiliary data immediately before the performance auxiliary data corresponding to the time data.
The gravel data and is stored in the history data storage means DOO
In addition, the time data of the performance data
The history data is stored in the reverse order
2. The automatic performance apparatus according to claim 1, wherein the automatic performance is read out first.