JPH03200287A - Automatic player - Google Patents

Abstract

PURPOSE:To listen to a play sound of selected timbre by enabling a player to generate the play sound with a play pattern assigned to the selected timbre by a musical sound generating means when the timbre is selected by a timbre selecting means. CONSTITUTION:This device is equipped with timbre selecting means SW1- SW2 which selects optional timbre among plural kinds of timbre and a storage means stored with play data on play patterns assigned to the respective kinds of timbre. Further, the device is equipped with a read means 8 which reads out play data on a play pattern corresponding to timbre selected by the timbre selecting means SW1 - SWn and musical sound generating means 4 and 5 which generate a musical sound according to the play data read out of the storage means 6. Namely, when timbre is selected by the timbre selecting means SW1 - SWn and play data is read out by the read means 8, the play sound with the play pattern assigned to the selected timbre is generated by the musical sound generating means 4 and 5. Consequently, the play sound of the selected timbre which has the play pattern matching the timbre is listed to immediately.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic performance device that reads pre-stored performance data and performs automatic performance, and in particular, relates to an automatic performance device that reads pre-stored performance data and automatically performs a performance pattern suitable for a selected tone. The present invention relates to an automatic performance device that performs a performance.

``Prior Art'' Generally, automatic performance devices are equipped with a demonstration performance function, and when a demonstration performance is instructed, performance data for one song stored in memory in advance is played. The performance data is sequentially read out and musical tones are generated based on the read performance data. In this case, the performance pattern is fixed to a specific song, and by selecting a tone color, the same performance pattern is demo-played with a different tone color.

``Problems to be Solved by the Invention'' By the way, in the conventional automatic performance device described above, although the timbre of the performance sound can be arbitrarily selected, the performance is monotonous because the demonstration performance is always performed using the same performance pattern. And it lacked interest.

Therefore, an automatic performance device (Japanese Patent Application Laid-Open No. 132296/1983) is known that improves the monotony of the demonstration performance by randomly changing the tone color as the song progresses during the demonstration performance. However, even in such automatic performance devices, various tones are randomly selected for the same performance pattern, so not all of these tones are suitable for the same performance pattern, and each tone is There is a problem in that the musical characteristics of the music cannot be sufficiently expressed, and furthermore, if you want to hear the performance sound of a certain tone, there is also the problem that you have to wait until the performance sound of that tone is emitted.

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide an automatic performance device that allows you to immediately listen to the performance sound of a selected tone color and a performance pattern suitable for this tone color. The purpose is

"Means for Solving the Problems" The present invention provides a timbre selection means for selecting an arbitrary timbre from a plurality of timbres, and a storage means for storing performance data of performance patterns assigned to each of the timbres. a reading means for reading performance data of a performance pattern corresponding to the timbre selected by the timbre selection means from the storage means; and a musical tone generation means for generating musical tones based on the performance data read from the storage means. It is characterized by having the following.

1. According to the above structure, when a tone is selected by the tone color selection means and performance data is read by the readout means, a performance sound of a performance pattern assigned to the selected tone is emitted from the musical sound generation means.

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In this figure, 1 is a keyboard, and 2 is a key press detection circuit. This key press detection circuit 2 detects the on/off state of each key by constantly scanning the key switches provided on each key of the keyboard l, and detects the on/off state of each key.
When a key that has been turned off is detected, a key on/off signal indicating whether the key is on or off and a key code of the key are output to the pass line Bus. SW 1. SW e
, -, SW n is a tone selection switch for selecting a desired tone from n types of tones (piano, electric piano,..., harpsichord), and SWd is for starting and stopping the demo performance. This is a demo performance switch for instructing.

The on/off state of each of these switches SW, -S Wn, and S Wd is detected by the operation switch detection circuit 3, and the switch on/off data is sent to the path line B.
Output to US. 4 is a musical tone signal generation circuit, and when a key-on signal indicating key-on and a key code are supplied via the pass line BUS, the tone pitch corresponding to the key code is generated based on the previously set tone parameters. It generates a musical tone signal and outputs it to a sound system 5 composed of an amplifier, a speaker, etc. Further, when a key-off signal indicating key-off and a key code are supplied, generation of a musical tone signal corresponding to the key code is set to a decay state. In this way, musical tones corresponding to the keys pressed on the keyboard 1 are emitted from the sound system 5.

Reference numeral 6 denotes a demonstration performance data memory in which performance data for demonstration performance is stored, and is constituted by a ROM.

As shown in FIG. 2, this demo performance data memory 6 stores performance data (key-on/off events) of n types of demo songs suitable for each of the n types of tones selected by the tone selection switches SW, ~SWn. (key code KCD indicating the key, and note length data indicating the length between key-on/off events) are sequentially stored as each demo song progresses.

That is, the performance data of the first demo song that is most suitable for the tone of the piano is written to the memory area after the start address 5TAn, and the performance data of the second demo song that is most suitable for the tone of the electric piano is written to the memory area starting from the start address 5TAn. S T
A is written to the subsequent memory area, and...
, the performance data of the nth demo piece that is most suitable for the tone of the harpsichord is written in the memory area starting from the start address 5TAn. Also, at the end address of each memory area, there is end data EN indicating the end of each demo song.
D is written respectively.

A tempo clock oscillator 7 outputs a temp clock signal as an interwoven signal to the microcomputer 8 via the pass line BUS in accordance with a set tempo. The microcomputer 8 is a pass line BU
A program memory 9 and a CPU10 each connected to
and a working memory 11. The program memory 9 is composed of a ROM, and stores the main program (see Figure 4) and its subroutine programs (see Figure 4).
In addition to the demo performance included program (see FIGS. 5 and 6) and the demo performance included program (see FIG. 7), the start address reference table shown in FIG. 3 is stored. This start address reference table does not indicate the start addresses STA to STAn of the performance data of the first to nth demo songs stored in the demo performance data memory 6 corresponding to each tone. It is.

When the power switch (path shown in the figure) is turned on, the CPU 10 starts executing the main program and repeatedly executes the same program until the power switch is turned off. When the signal arrives, the processing of the main program is interrupted, and the demo performance included is interrupted. The working memory 11 is composed of a RAM, and temporarily stores data and flags necessary during the execution of each program. Among these data and flags, the main ones are listed below.

Rotemo Flag DMF......Flag indicating whether or not a demo is being played.
F becomes rN.

Rodemo mode flag DMMF...In the case of selected tone play mode in which a demo performance of one song is performed using the selected tone, this flag DMMF becomes rlJ, and a chain that sequentially performs a demonstration song corresponding to each tone. In the case of play mode, it is "0".

Rock clock data CLK...This is data that is incremented (stepped) each time the tempo clock oscillator 7 outputs a tempo clock signal.

Mouth tone color number data TONE: Data indicating the tone selected by the tone color selection switch SW+-Swn, and has any value from rlJ to rnJ.

Current timbre number data PTC: Data indicating the timbre selected immediately before executing the demo performance.

Next, the operation of the automatic performance device having the above-mentioned configuration will be explained in the fourth section.
This will be explained with reference to the flowcharts shown in FIGS.

First, when the power switch (path shown) is turned on, the CP
Ul0 executes the main program shown in FIG. 4, and in step 100 clears various registers, flags, etc. in the working memory 11, or initializes them by setting initial values.

In this case, the clock data CLK is set to "0",
Tone color number data TONE is set to "1".

After this initialization, the CPUfO steps a lot.
, the musical tone signal generation circuit 4 is controlled based on the on/off signal and key code of each key supplied from the pressed key detection circuit 2 via the pass line l3US, and the musical tone signal generation circuit 4 is generated to generate a musical tone corresponding to each pressed key. Execute keyboard processing such as generation. After that, a tone selection processing routine is executed in step 102, a demo performance processing routine is executed in step 103, and other processing is executed in step 104, and then the process returns to step 101.
Repeat each process in step 4.

In the timbre selection processing routine (step 102), first, in step 200 shown in FIG. 5, each timbre selection switch S W + =
It is determined whether any of the S W n has been turned on (an on event has occurred), and if it is determined that an on event has occurred, the process advances to step 201. This step 201
, one of the data "l" to rnJ selected by the tone selection switches sw and -9Wn and corresponding to the tone is taken in as tone color number data TONE, and the tone parameter corresponding to this tone number data TONE is sent to the musical tone generation circuit 4. Set. On the other hand, if it is determined in step 200 that there is no on event, the process returns to the main program shown in FIG.

Next, in the demo performance processing routine (step 103), first, in step 210 shown in FIG. 6, it is determined whether the demo flag DMF is rN. If the demo flag DMF' is "0", that is, if the demo performance is not currently in progress, the process advances to step 211. In step 211, it is determined whether or not the demonstration performance switch SWd has been pressed (an on event has occurred) based on the switch on/off data output from the operation switch detection circuit 3, and it is determined that an on event has occurred. If so, it is assumed that an instruction has been given to start the demonstration performance, and the process proceeds to step 212. In this step 2I2, after the demo flag DMF is set to rlJ, the process proceeds to the next step 213. In this step 213, data indicating the timbre selected immediately before performing the demonstration performance is stored in the working memory 11 as the current timbre number data PTC, and the process proceeds to the next step 214. This step 214
Based on the switch on/off data output from the operation switch detection circuit 3, it is determined whether any of the tone color selection switches SW to SWn is turned on. That is, a tone color selection switch SW is used to select a desired tone color.

If the demo performance switch SWd is pressed at the same time while any of the switches SWn is pressed, step 21 is executed.
In step 4, it is determined that the timbre selection switch is on, and the process proceeds to step 215. Then, in step 215, the demo mode flag DMMF is set to rlJ, that is, the selected tone play mode is set, and then the process returns to the main program. If none of the tone selection switches SW, ~SW, is pressed, the process advances from step 214 to step 216, and in step 216, the demo mode flag DMMF is set to "0", that is, the chain play After entering the mode, return to the main program.

On the other hand, in step 210, the demo flag DMP is r
In the case of lJ, that is, when the demo performance is currently being performed, the process advances to step 217, and in this step 217, the demo performance switch SWd is pressed based on the switch on/off data output from the operation switch detection circuit 3 (
If it is determined that there is an on-event, it is assumed that an instruction has been given to stop the demonstration performance, and the process proceeds to step 218. In step 218, the demo flag DMF is set to "0", and in step 219, the current tone number data PTC stored in the working memory 11 immediately before starting the demo performance is set as tone data TONE. Then return to the main program.

If it is determined in step 217 that there is no on event, the process returns directly to the main program.

Next, CPtJ l O described the main program (
When the tempo clock oscillator 7 generates a tempo clock signal during the cyclic processing of steps to1 to 104 in FIG. Start processing. This demo performance interactive will be explained below.

First, in step 220, the demo flag DMF is set to "
1”, and the demo flag DMF is rl.
If it is J, the process advances to the next step 221, and if the demo flag DMP is "0", the process returns to the main program. In step 221, it is determined whether or not the demo mode flag DMMF is rN. If the demo mode flag DMMF is rlJ (in the case of tone selection play mode), the process advances to step 222, and the demo mode flag DMMF is set to 10. ” (in the case of chain play mode), the process advances to step 227.

In step 222, the performance data of the performance pattern assigned to the timbre selected by the timbre selection switches SW1 to SWn is sequentially read out from the demonstration performance data memory 6 based on the value of the clock data CLK. Here, for example, if a piano tone is selected, the clock data C is
The address is advanced in accordance with I and K, and performance data is read from the demonstration performance data memory 6 based on this address. Next, in step 223, the performance data read from the demonstration performance data memory 6 is supplied to the musical tone signal generation circuit 4 to generate a performance pattern, and then the process proceeds to step 224, where the clock data CLK is incremented, and the process proceeds to step 225. Proceed to. This step 225
In step 226, the end data END is read from the demo performance data memory 6, and it is determined whether or not there is end data.If it is determined that there is end data, it is assumed that the demo song is over, and the process proceeds to step 226, where the clock data is read out. CLK to “0”
” to return to the main program. If it is determined in step 225 that there is no end data, the process returns directly to the main program. Then, by repeatedly executing steps 220 to 226 described above until the end data END is read out, the demo song assigned to the tone selected by the tone color selection switches SW, -SWn is emitted from the sound system 5.

In this case, the same demo song is repeatedly played with the same tone until the demo performance switch SWd is pressed and an instruction to stop the performance is determined in step 217.

Meanwhile, in step 221, the demo mode flag DM
If it is determined that MF is "0", step 22
Proceed to step 7. In this step 227, the performance data of the performance pattern assigned to the tone specified by the tone color number data TONE is transferred to the clock data CL.
Read out sequentially based on the value of K. Here, the tone number data T.

For the NE, rN is set by the initialization process in step +00 above, or by the initialization process in step 10.
One of the values from "1" to rnJ is set by the tone color selection processing routine No. 2.

For example, as tone number data TONE, r
If lJ is set and a piano tone is selected,
The address is advanced from the start address S T A + in accordance with the clock data CLK, and performance data is read from the demonstration performance data memory 6 based on this address. Next, in step 228, the performance data read from the demonstration performance data memory 6 is supplied to the musical tone signal generation circuit 4 to generate a performance pattern, and then the process proceeds to step 229, where the clock data CLK is incremented, and the process proceeds to step 230. Proceed to. This step 23
0, it is determined whether or not the end data END has been read out from the demo performance data memory 6. If it is determined that the end data is present, it is assumed that the demo song has ended, and the process proceeds to step 231, where the tone number data is read out. TONE
is incremented, and < is the tone number data TO
If the value of NE is rnJ, it is reset to "1", the clock data CLK is further reset to "0", and the process returns to the main program. If it is determined in step 230 that there is no end data, the process returns directly to the main program. Then, step 22'0.22 mentioned above
By repeatedly executing steps 1 and 227 to 231 until the end data END is read out, the demo songs assigned to each tone color are emitted from the sound system 5 in order. In this case, tone setting switches sw, -sw
If a tone is specified by n, the performance starts from the demo song assigned to the specified tone, and if no tone is specified, the tone number data TONE
The performance starts from the demo piece assigned to the piano specified by =rlJ. And the tone number data T
When the performance of the demo piece assigned to the harpsichord specified by ONE=rnJ is finished, the performance of the demo piece assigned to the piano is started again. In this way, demo songs suitable for each tone are sequentially played for each tone.

According to the above-described embodiment, if you want to listen to a demo performance of a specific tone, press the demo performance switch SWd while pressing any of the tone selection switches SW, ~SWn, and the tone selection play mode will be activated. A demo song is played that has a certain tone and is suitable for that tone. If you want to listen to demo performances of each tone in turn, use the tone selection switches SW1 to SWn to first specify the tone to be played as a demo, and then press the demo performance switch SWd to switch to chain play mode. , the demo songs assigned to each tone are played in order with each tone.

Therefore, the tone color selection play mode and the chain play mode can be selected by simply changing the timing at which the demo performance switch SWd is pressed.

Further, since the tone color selection switches SW1 to SWn select the performance pattern for one song at the same time as the tone color, there is no need to add a new switch on the operation panel.

In the above-described embodiment, the microcomputer 8 is used to realize each of the above-mentioned functions by software, but it is of course possible to realize each function by dedicated 7% software. Further, the present invention may be applied not only to demonstration performances but also to ordinary automatic performances, in which case automatic performance data may be stored for each tone. Furthermore, a rhythm pattern suitable for each tone color may be stored as performance data, and percussion instrument sounds etc. may be expressed using a different rhythm pattern for each tone color.

"Effects of the Invention" As explained above, according to the present invention, when a tone is selected by the tone color selection means, the performance sound of the performance pattern assigned to the selected tone is emitted from the musical sound generation means. You can immediately hear the performance sound of the selected tone, and since the performance pattern changes in various ways depending on the selected tone, you can fully express the musical characteristics of each tone, allowing for a wide variety of demonstration performances. You can get the effect that you can.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a diagram showing a memory map of the demo performance data memory of the same embodiment, FIG. 3 is a diagram showing a start address reference table of the same embodiment, and FIGS. 4 to 7 explain the operation of the same embodiment. FIG. 4 shows the main program, FIG. 5 shows the timbre selection processing routine, FIG. 6 shows the demonstration performance processing routine, and FIG. 7 shows the demonstration performance interlude. S W +~SWn... Tone selection switch (tone selection means), SWd... Demo performance switch, 3...
Operation switch detection circuit, 4... Musical tone signal generation circuit, 5... Sound system (4 and 5 are musical tone generation means), 6... Demonstration performance data memory (storage means) ), 8...Microcomputer (reading means)
.

Claims (1)

[Scope of Claims] Tone selection means for selecting an arbitrary tone from a plurality of tones; storage means storing performance data of performance patterns assigned to each of the tones; It is characterized by comprising: reading means for reading performance data of a performance pattern corresponding to the timbre selected by the timbre selection means; and musical sound generation means for generating a musical sound based on the performance data read from the storage means. automatic performance device.