JPH07306677A - Automatic performance device - Google Patents

Abstract

PURPOSE:To provide an automatic performance device which can switch the automatic performance with the favorite timing of a performer. CONSTITUTION:This automatic performance device is equipped with a storage means 15, which has stored firsts automatic performance data and second automatic performance data, a switch means 13 (14), which has ON state OFF state, and automatic performance means 10 and 17, which starts the automatic performance based on the first automatic performance data being stored in a storage means 15, according to the change from the OFF state to ON state of the switch means and stops the automatic performance based on the first performance data, according to the change from ON stage to OFF state, and starts the automatic performance based on the second automatic performance 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 capable of freely changing the switching timing of automatic performance.

[0002]

2. Description of the Related Art In recent years, electronic musical instruments such as electronic keyboards, electronic organs, and electronic pianos are equipped with automatic performance devices. Using this automatic performance device, the player enjoys playing the electronic musical instrument by playing a melody or the like with the accompaniment sound (automatic performance sound) of a rhythm or the like with an automatically generated specific tone as a background. be able to. Such an automatic performance device preliminarily stores automatic performance data for one to several measures in a memory, and repeatedly reads out and produces this automatic performance data to continuously generate accompaniment tones.

In the automatic performance device thus constructed,
Since it is basically to repeatedly generate an automatic accompaniment sound with a constant rhythm, tone color, etc., it cannot be denied that the automatic accompaniment becomes monotonous. Therefore, in order to avoid such monotonousness, by changing the rhythm, tone color, etc. at the beginning part, end part, or predetermined part of the song, the automatic accompaniment is changed, and a vivid accompaniment is performed as a whole. The thing that made it possible is developed.

In such an automatic performance device, for example, the main,
Equipped with a memory that stores automatic performance data to realize performance patterns such as intro, ending, fill-in, etc., and an intro switch, ending switch, fill-in switch, etc. for starting automatic performance such as intro, ending, fill-in, etc. ing.

Here, the main is a performance pattern of a basic rhythm or tone color. The intro is a performance pattern that allows a predetermined characteristic automatic performance to be performed prior to the automatic performance by the main performance pattern. The ending is a performance pattern that causes a predetermined characteristic automatic performance when the automatic performance according to the main performance pattern is finished. Fill-in is a performance pattern that allows a characteristic automatic performance of a predetermined length to be performed during the automatic performance of the main performance pattern.

To insert an intro into the automatic performance device to start an automatic performance, the performer turns on the intro switch. As a result, an automatic performance (hereinafter referred to as "intro performance") based on the automatic performance data of the intro (hereinafter referred to as "intro performance data") is performed for a predetermined measure, and thereafter, the main automatic performance data (hereinafter referred to as "automatic performance data" The automatic performance (hereinafter referred to as "main performance") based on "main performance data" is started. The length of the intro performance is determined for each performance pattern such as waltz and march, and cannot be changed by the performer.

Similarly, when ending the automatic performance by adding the ending, the performer turns on the ending switch while the automatic performance is being performed. As a result, an automatic performance (hereinafter referred to as "ending performance data") based on the ending automatic performance data (hereinafter referred to as "ending performance data")
It is called "ending performance". ) Is performed for a predetermined measure, and then the automatic performance ends. The length of this ending performance is also determined for each performance pattern as in the case of the intro, and cannot be changed by the performer.

[0008]

Since the conventional automatic performance device is configured as described above, when the intro is inserted and the automatic performance is started, the length of the intro performance depends on the performance pattern of the intro. different. Therefore, there is a problem in that the player cannot start, for example, a melody performance in synchronization with the start of the main performance unless he or she is familiar with the performance pattern of the intro (length of the intro performance).

When performing an ensemble, not only the performer of the electronic musical instrument but also the performers of other musical instruments should be familiar with the performance pattern of the intro, or the performer of the electronic musical instrument should have a predetermined timing. In order to be able to start the ensemble, it was necessary to take measures such as adjusting the timing to start the intro performance. Further, since the length of the intro performance is predetermined according to the performance pattern, there is a problem that the player cannot shorten the intro even if he feels that the intro is too long.

Such a problem also occurs when it is desired to end the automatic performance by adding an ending. That is, the length of the ending performance differs depending on the ending performance pattern. Therefore, if the performer is not familiar with the ending playing pattern, the performer does not know the timing at which the ending playing ends (length of the ending playing),
There was a problem that the performer couldn't finish it exactly as he had imagined.

When performing an ensemble, not only the player of the electronic musical instrument but also the player of another musical instrument should be familiar with the ending performance pattern, or the player of the electronic musical instrument should perform at a predetermined timing. In order to finish the ensemble, it was necessary to devise a method such as adjusting the timing to start the ending performance. Furthermore, since the length of the ending performance is predetermined according to the performance pattern, even if the performer feels that the ending is too long, it cannot be shortened.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an automatic performance device capable of switching the automatic performance at a timing desired by the performer.

[0013]

In order to achieve the above object, an automatic performance device according to a first aspect of the present invention has a storage means for storing first automatic performance data and second automatic performance data, and an ON state. And a switch means having an off state,
The automatic performance based on the first automatic performance data stored in the storage means is started in response to the change from the off state to the on state of the switch means, and the first performance is performed in response to the change from the on state to the off state. The automatic performance means for stopping the automatic performance based on the automatic performance data and starting the automatic performance based on the second automatic performance data.

For the same purpose, an automatic performance device according to a second aspect of the invention has a storage means for storing first automatic performance data, second automatic performance data and third automatic performance data, and an on state. And a switch means having an off state,
The automatic performance based on the first automatic performance data stored in the storage means is started in response to the change of the switch means from the off state to the on state, and the second performance is performed in response to the change from the on state to the off state. Of automatic performance data and automatic performance means for starting automatic performance based on the third automatic performance data.

For the same purpose, the automatic musical instrument according to claim 3 is characterized in that a switch of an operation panel is used as the switch means according to claim 1 or 2.

Further, for the same purpose, the automatic musical instrument according to claim 4 is characterized in that a key of a keyboard device is used as the switch means according to claim 1 or 2.

[0017]

According to the first aspect of the invention, the automatic performance based on the first automatic performance data is started by switching the switch means from the off state to the on state. This first
The automatic performance based on the first automatic performance data is stopped by turning the switch means from the on state to the off state while the automatic performance based on the automatic performance data is being performed. Based on this, automatic performance is started.

Therefore, the performer starts the automatic performance based on the first automatic performance data by turning on the switch means, and turns off the switch means at an arbitrary timing to perform the second automatic play. It is possible to switch to automatic performance based on performance data. For example, if intro performance data is used as the first automatic performance data and main performance data is used as the second automatic performance data, the intro performance is started by turning on the switch means, and the switch means is turned off at a desired timing. It is possible to switch from the intro performance to the main performance by setting the state. Therefore, the performer can shift to the main performance after performing the intro performance of a desired length.

Similarly, if the ending performance data is used as the first automatic performance data and the automatic performance data for accenting (hereinafter referred to as accent performance data) is used as the second automatic performance data, the switch means is turned on. By setting the state, the ending performance is started, and by turning off the switch means at a desired timing, the ending performance can be switched to the automatic performance based on the accent performance data (hereinafter referred to as "accent performance"). Therefore, the performer
If you prepare accent performance data of an appropriate length,
After the ending performance is performed, an accent can be added to end the automatic performance.

According to another aspect of the present invention, the switch means is changed from the off state to the on state, whereby the first
The automatic performance based on the automatic performance data of is started. The automatic performance based on the second automatic performance data and the third automatic performance data is performed by turning the switch means from the ON state to the OFF state while the automatic performance based on the first automatic performance data is being performed. Is done. The automatic performance based on the second automatic performance data and the third automatic performance data can be configured to be performed in parallel.

Therefore, the performer starts the automatic performance based on the first automatic performance data by turning on the switch means, and turns off the switch means at an arbitrary timing to perform the second automatic performance. It is possible to switch to automatic performance based on the performance data and the third automatic performance data. For example, when the intro performance data is used as the first automatic performance data, the main performance data is used as the second automatic performance data, and the accent performance data is used as the third automatic performance data, the intro performance is performed by turning on the switch means. It is possible to switch from the intro performance to the main performance and the accent performance by starting and turning off the switch means at a desired timing. Therefore, the performer can start the accent performance and the main performance after performing the intro performance of a desired length. In this case, if the accent performance data of an appropriate length is prepared, it is possible to add the accent after the intro performance and to shift to the main performance, so that the automatic performance can be performed in a sharp manner.

Similarly, if the ending performance data is used as the first automatic performance data and the accent performance data is used as the second or third automatic performance data, the ending performance is started by turning on the switch means and desired. The ending performance can be switched to the accent performance by turning off the switch means at the timing. Therefore, the performer is the second or third
If two types of accent performance data of appropriate lengths are prepared as the automatic performance data, the automatic performance can be terminated by adding an accent after the ending performance.

According to the third aspect of the invention, the switch of the operation panel is used as the switch means. Therefore, for example, if the intro performance data is used as the first automatic performance data and the main performance data is used as the second automatic performance data, the intro performance is started by pressing the switch, and the intro performance is continued while the switch is being pressed. It In this state, by releasing the switch, the intro performance is changed to the main performance, or the intro performance is changed to the main performance accompanied by the accent performance. Therefore, the player can perform an intro performance of any length by releasing the switch at a desired timing.

Similarly, for example, if the ending performance data is used as the first automatic performance data and the accent performance data is used as the second automatic performance data (or another accent performance data is used as the third automatic performance data), the switch is switched. The ending performance is started by pressing, and the ending performance is continued while the switch is being pressed. By releasing the switch in this state, the ending performance is changed to the accent performance. Therefore, the player can perform an ending performance of an arbitrary length by releasing the switch at a desired timing, attach an accent, and end the automatic performance.

In the invention described in claim 4, the key of the keyboard device is used as the switch means. Therefore, for example, as the first automatic performance data, intro performance data,
If the main performance data is used as the second automatic performance data, the intro performance is started by pressing the key, and the intro performance is continued while the key is being pressed. In this state, by releasing the key, the intro performance is changed to the main performance, or the intro performance is changed to the main performance accompanied by the accent performance. Therefore, the player can perform an intro performance of any length by releasing the key at a desired timing. In this case, since the player's hand is on the keyboard device 14, there is an advantage that the player can immediately proceed to the next performance.

Similarly, if the ending performance data is used as the first automatic performance data, and the accent performance data is used as the second automatic performance data (or another accent performance data is used as the third automatic performance data), The ending performance is started by keying, and the ending performance is continued while the key is pressed. By releasing the key in this state, the ending performance is changed to the accent performance. Therefore, the performer releases the key at a desired timing to perform an ending performance of an arbitrary length,
You can add an accent to end the automatic performance.

[0027]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an embodiment of an electronic musical instrument to which the automatic musical instrument of the present invention is applied.

This electronic musical instrument has a central processing unit (hereinafter referred to as "C
PU ”. ) With 10 as the center, in this CPU 10,
Read-only memory (hereinafter referred to as "ROM") 1
1, a random access memory (hereinafter referred to as "RAM") 12, an operation panel 13, a keyboard device 14, an external storage device 15, an external signal interface circuit 16 and a tone generator 17 are connected. An amplifier 18 is connected to the sound source 17, and a speaker 19 is connected to the amplifier 18.

The CPU 10 controls each part of the electronic musical instrument according to a control program stored in the ROM 11. A part of the function of the automatic performance means is realized by the processing of the CPU 10. Details of the operation of the CPU 10 will be described later.

In the ROM 11, as described above, the CPU
In addition to storing a control program for controlling 10, various fixed data used by the CPU 10 for various processes are stored. The ROM 11 also stores a plurality of tone color parameters for each tone color (for example, musical instrument sound) and tone range. The timbre parameter is sent to the sound source 17 and used to generate a musical tone signal having a predetermined timbre. This timbre parameter is, for example, a waveform address,
It is composed of frequency data, envelope data, filter coefficients, and the like.

The RAM 12 temporarily stores various data processed by the CPU 10, and defines various registers, counters, flags and the like for controlling the electronic musical instrument. The types of registers, counters, flags, etc. defined in the RAM 12 will be described later as needed.

On the operation panel 13, as shown in FIG. 2, for example, an intro switch 20, an ending switch 21, an option switch 22, and a stop switch 2 are provided.
3, an up / down switch 24 and a display 25 are mounted. Although various switches and indicators other than those described above are mounted on the operation panel 13, parts not directly related to the present invention are omitted.

The intro switch 20 functions as a switch means and is used for starting the intro performance and shifting from the intro performance to the main performance. That is, the intro switch 20 is used to start the intro performance by turning it on and switch from the intro performance to the main performance by turning it off.

As the intro switch 20, it is possible to use, for example, a switch that generates an on event when pressed and an off event when separated. In this case, the processing of the CPU 10 switches to the on state or the off state each time an on or off event occurs, and controls which of the current states is stored in the RAM 12. As a result, it is possible to realize the switch means having the ON state and the OFF state.

The intro switch 20 may be, for example, a switch that generates only an on event when pressed. In this case, the CPU 10 processes the RAM to determine whether it is currently in the on state or the off state.
It is stored in No. 12 and is controlled so that the ON state or the OFF state is inverted every time the ON event occurs. As a result, it is possible to realize the switch means having the ON state and the OFF state.

As the intro switch 20,
It is possible to use a toggle switch that outputs an H level signal (for example, a signal indicating an ON state) when pressed and outputs an L level signal (for example, a signal indicating an OFF state) when released. In this case, the CPU 10 determines the on state or the off state by directly referring to the signal level from the intro switch 20. The level of the signal that defines the ON state and the OFF state may be opposite to the level described above.

The ending switch 21 functions as a switch means, and is used for starting the ending performance, shifting from the ending performance to the accent performance, or for ending the ending performance. That is, this ending switch 21
Turns on to start the ending performance,
It is used to switch from the ending performance to the accent performance by turning it from on to off, or to end the ending performance. As the ending switch 21, a switch configured similarly to the intro switch 20 can be used.

The option switch 22 is used to specify whether or not the accent performance is performed when the intro performance is switched to the main performance, or whether the accent performance is performed when the automatic performance is stopped from the ending performance. Used to specify. That is, when the option switch 22 is turned on, it is used to perform the accent performance when the intro performance is changed to the main performance. It is also used to perform an accent performance when the automatic performance is stopped from the ending performance. This optional switch 22
Also, a switch configured similarly to the intro switch 20 can be used.

The stop switch 23 is used to forcibly stop the main performance. That is, when the stop switch 23 is turned on during the main performance, the automatic performance is forcibly stopped. Therefore, when the stop switch 23 is pressed, the ending performance is not performed. This stop switch 23 also
A switch configured similarly to the intro switch 20 can be used.

The up / down switch 24 is composed of an up switch 24a and a down switch 24b. The up / down switch 24 functions as an item selection switch by pressing the up switch 24a and the down switch 24b at the same time. As the items, for example, selection of performance pattern (automatic performance data), selection of tone color, selection of rhythm, selection of type of sound effect, selection of demo song, and the like are prepared. That is, when the up switch 24a and the down switch 24b are pressed at the same time, the above items are sequentially selected while circulating. At this time, the display device 25 displays the parameter to be selected in the selected item or the data input field of the selected item.

The up switch 24a or the down switch 24b is independently operated to sequentially select a predetermined parameter defined in each item described above or input data to be given to each item. Used to For example, when a performance pattern item is selected, a list of performance patterns (for example, waltz, march, tango, ...) Is displayed.
Alternatively, the down switch 24b is operated to select a desired performance pattern. Similarly, for example, when a tone color item is selected, a data input field is displayed, and the desired value (tone color number) is input by operating the up switch 24a or the down switch 24b. Also in other items,
Similar to the above, a predetermined parameter is selected or predetermined data is input.

The display 25 can be composed of, for example, a 7-segment LED, LCD, CRT or the like.
The display device 25 displays various parameters of each item together with the operation of the up / down switch 24,
Or used to display a data entry field. The display 25 is also used to display various messages.

Operation panel 13 configured as described above
Via the panel interface circuit (not shown)
It is connected to U10. The panel interface circuit controls transmission / reception of data between the operation panel 13 and the CPU 10. That is, the panel interface circuit sends a scan signal to the operation panel 13 and inputs a signal indicating the on / off state of each switch, which is returned from the operation panel 13 in response to the scan signal. Then, from this signal, panel data in which ON / OFF of each switch is associated with 1 bit (hereinafter, referred to as “new panel data”) is generated and sent to the CPU 10.

The CPU 10 refers to this new panel data to judge the presence / absence of a panel event. That is, similar to the above, the panel data (hereinafter referred to as “old panel data”) read from the operation panel 13 in the previous scan and already stored in the RAM 12 is compared with the new panel data, and different bits are compared. Create a panel event map that has been turned on. If there is a bit that is turned on in this panel event map, it is determined that there is a panel event.

For example, whether or not there is an on event of the intro switch 20 is determined by the bit corresponding to the intro switch 20 in the panel event map being on and the intro switch 20 in the new panel data.
By checking if the bit corresponding to is turned on. Similarly, whether or not there is an off event of the intro switch 20 indicates that the bit corresponding to the intro switch 20 in the panel event map is on and the bit corresponding to the intro switch 20 in the new panel data is It is done by checking if it is off. If it is determined that there is an on event, the intro flag provided in the RAM 12 is turned on, and if it is determined that there is an off event, the intro flag is turned off.

Ending switch 21, option switch 22, stop switch 23, up switch 2
Whether or not each of the switches 4a and the down switch 24b has an on event or an off event can be checked in the same manner as the intro switch 20. Then, similarly to the intro switch 20, an ending flag, an option flag, a stop flag, an up flag or a down flag corresponding to each of the switches provided in the RAM 12 is set or cleared, respectively.

The panel interface circuit is CP
The display data sent from U10 is displayed on the operation panel 13
Sent to the display 25 of. As a result, predetermined numbers, English letters, symbols, etc. are displayed on the display unit 25.

The keyboard device 14 has a plurality of keys for designating a pitch. Each key of the keyboard device 14 is provided with a key switch that opens and closes in conjunction with key depression or key release. The keyboard device 14 is connected to the CPU 10 via a keyboard interface circuit (not shown). The keyboard interface circuit controls transmission / reception of data between the keyboard device 14 and the CPU 10. That is, the keyboard interface circuit sends a scan signal to the keyboard device 14, and inputs a signal indicating the on / off state of each key switch returned from the keyboard device 14 in response to the scan signal. Then, from this signal, key data in which ON / OFF of each key switch is associated with 1 bit is generated (hereinafter, these are referred to as “new key data”), and the CPU 10
Send to. Also, the keyboard interface circuit detects the key pressing speed, generates touch data, and sends the touch data to the CPU 10.

The CPU 10 refers to the new key data to determine the presence / absence of a key event. That is, similarly to the above, the RA is read from the keyboard device 14 in the previous scan and already RA
The key data stored in M12 (hereinafter referred to as "old key data") is compared with the new panel data, and a key event map with different bits turned on is created. If there is a bit that is turned on in this key event map, it is determined that there is a key event.

For example, whether or not there is an on event of a predetermined key of the keyboard device 14 is determined by the fact that the bit corresponding to the predetermined key in the key event map is turned on and that the new key data contains the above-mentioned bit. This is done by checking if the bit corresponding to a given key is on. Similarly, whether or not there is an off event of a predetermined key of the keyboard device 14 is determined by the fact that the bit corresponding to the predetermined key in the key event map is turned on and the predetermined key in the new key data is turned on. This is done by checking if the bit corresponding to the key is off.

The CPU 10 determines the presence or absence of the key on event or the off event as described above, and when it is determined that the on event occurs, performs the sound generation process. In this sound generation processing, a sound is assigned to a predetermined oscillator (not shown) in the sound source 17, and the tone color is read from the ROM 11 based on the key number of the key having the above-mentioned on-event, the touch data, the tone color selected at that time, and the like. The parameters are read and sent to the sound source 17. As a result, the sound source 17
In the assigned oscillator, a tone signal based on the tone color parameter is generated, is amplified by the amplifier 18, and is emitted through the speaker 19.

On the other hand, when it is determined that there is an off event, the muffling process is performed. That is, the oscillator in the sound source 17 assigned to the key having the off event is searched for, and predetermined data is sent, whereby the sound is silenced.

The external storage device 15 corresponds to a storage means and is used to store automatic performance data. As the external storage device 15, for example, a floppy disk, an optical disk, a magnetic tape, an IC card having a memory, or other various storage media can be used.

A plurality of types of automatic performance data stored in the external storage device 15 are stored for each performance pattern in order to enable automatic performance by a plurality of performance patterns. The automatic performance data for each performance pattern is intro, main,
It consists of three types of endings. Therefore, when one performance pattern is selected, the intro, main, and ending tone colors, rhythms, lengths, etc. are uniquely determined. In addition to the above-mentioned automatic performance data, the external storage device 15 also has automatic performance data for performing an accent performance. If necessary, fill-in automatic performance data may be added to configure automatic performance data for each performance pattern.

Here, the intro performance data is composed of data for one to several measures, and as described above, is used to perform a predetermined characteristic automatic performance before starting the main performance. That is, when the intro switch 20 is pressed while the automatic performance is stopped, the intro performance data is repeatedly read and the intro performance is performed.
The intro performance is continued until the player releases the intro switch 20. Then, when the intro switch 20 is released, the main performance is started.

The main performance data is composed of data for one to several measures and is used to automatically perform a basic performance pattern of rhythm, as described above. When the intro performance ends (when the intro switch 20 is released), the main performance data is repeatedly read and the main performance is performed.

The ending performance data is composed of data for one to several measures, and as described above, when the main performance is finished, a predetermined characteristic automatic performance is performed. When the ending switch 21 is pressed during the main performance, the main performance currently being executed is stopped, the ending performance data is repeatedly read, and the ending performance is performed. The ending performance is continued until the player releases the ending switch 21. And
When the ending switch 21 is released, the accent performance is started or the automatic performance is stopped.

The accent performance data is composed of data for one to several measures. This accent performance data is stored in the option switch 2 when the intro performance is changed to the main performance or the ending performance is ended.
It is used to generate a certain characteristic automatic performance, for example, a cymbal sound, provided that 2 is pressed.

That is, if the option switch 22 is pressed, when the intro switch 20 is released during the intro performance, the accent performance is performed simultaneously with the start of the main performance, and the ending switch 21 is released during the ending performance. Also, the accent performance is performed. If the option switch 22 is not pressed, the accent performance is not performed and the main performance is started even if the intro switch 20 is released during the intro performance. If the ending switch 21 is released during the ending performance, the ending performance is ended without the accent performance and the automatic performance is stopped.

The fill-in automatic performance data is used to perform an automatic performance having a predetermined characteristic, for example, an automatic performance having an accent effect during the main automatic accompaniment. If the fill-in switch (not shown) is pressed during the main performance, the main performance that is currently being executed is suspended, and the fill-in automatic performance data is read out, and the automatic performance is performed for a predetermined measure (for example, one measure). Performed and then return to the original main performance.

The automatic performance data stored in the external storage device 15 is temporarily loaded into the RAM 12 at a predetermined timing (for example, when the power is turned on or when a specific switch is operated), and the RAM 12 is used as a storage means. It can also be configured to automatically play. According to such a configuration, there is an advantage that even the external storage device 15 that does not have a speed sufficient for performing the processing relating to the automatic performance can be used as the storage means of the present invention.

The external signal interface circuit 16 sends and receives musical tone data to and from an externally connected sequencer, another electronic musical instrument, or the like. As the musical tone data, for example, data in accordance with the MIDI standard (MIDI
Data) can be used. With this MIDI data, the same operation as when the key of the keyboard device 14 is operated or the switch of the operation panel 13 is operated can be performed.

Further, if the automatic performance data is received through the external signal interface circuit 16 and given to the tone generator 17, the automatic performance data is automatically played using the automatic performance data possessed by the sequencer and other electronic musical instruments. Can also be configured to do. In this case, there is an advantage that the external storage device 15 becomes unnecessary.

The sound source 17 corresponds to a part of the automatic performance means, and is provided with, for example, a plurality of oscillators, a waveform memory (none of which are shown), and the like. The waveform memory is composed of, for example, a ROM. The waveform data stored in the waveform memory is created, for example, by converting emitted musical tones into electric signals and performing pulse code modulation (PCM) on the electric signals. The musical tone waveform memory stores a plurality of types of waveform data corresponding to each tone color and each tone range in order to realize a plurality of tone colors.

The tone generator 17 receives the tone color parameters and the tone generation start command from the CPU 10 and starts to generate a tone signal. That is, the sound source 17 identifies the waveform data in the waveform memory using the waveform address included in the tone color parameter, and reads it out at a speed according to the frequency data included in the tone color parameter. Then, an envelope corresponding to the envelope data included in the tone color parameter is added to the read waveform data to generate a tone signal.

The tone signal thus generated is supplied to the amplifier 18. The amplifier 18 amplifies the inputted musical tone signal with a predetermined amplification factor. The tone signal amplified by the amplifier 18 is sent to the speaker 19. The speaker 19 is a well-known speaker that converts a musical tone signal as an electric signal into an acoustic signal and outputs the acoustic signal.

Next, the operation of the present invention having the above-mentioned structure will be described in detail with reference to the flow chart.

(1) First Embodiment FIG. 3 is a flow chart showing a process for performing an intro performance, which is realized by the process of the CPU 10.

Before starting the automatic performance, first,
A performance pattern is designated (step S10). This is because the CPU 10 causes the operation panel 13 to be operated in response to a player's operation of selecting a performance pattern using the operation panel 13.
Is a process for fetching a number indicating a performance pattern from. More specifically, as described above, the process of detecting the event of the up switch 24a or the down switch 24b and detecting the number of the performance pattern selected by the event is performed. The number designating the performance pattern obtained by this processing is stored in a predetermined area of the RAM 12 (hereinafter referred to as "performance pattern number area").

Next, options are designated (step S11). This is performed by the CPU 10 in response to the operation of the player pressing the option switch 22 on the operation panel 13.
Is a process for fetching a signal indicating whether the option switch 22 is on or off from the operation panel 13. More specifically, the CPU 10 detects that there is an ON event of the option switch 22 as described above, and performs the process of inverting the accent flag. That is, the option switch 22 functions as a toggle switch whose state is inverted each time it is pressed. The accent flag set or cleared by this processing is referred to in step S16 described later.

When the above preprocessing is completed, it is then checked whether or not the intro switch 20 is turned on (step S12). This is done by checking if the intro flag is set on. Then, if it is determined that the intro switch 20 is not turned on, the process stands by while repeatedly executing the step S12. In this standby state, although not shown in the figure, events of other switches of the operation panel 13, events of the keyboard device 14, and the external signal interface circuit 1
The processing corresponding to the event 6 and the like (hereinafter, referred to as “other event”) is performed. In this standby state, when the intro switch 20 is pressed and the intro flag is set to on, the reading of intro performance data is started (step S13).

That is, first, the start address (address of the external storage device 15) of the intro performance data corresponding to the number stored in the performance pattern number area of the RAM 12 is set in a predetermined address register. This address register is a register provided in the RAM 12 and stores the read address of the external storage device 15.

Next, a sound is produced based on the intro performance data (step S14). That is, the first intro performance data is taken out from the address position set in the address register. Then, it is determined whether or not the intro performance data is at the sounding timing (this is done, for example, by checking the step time or the like included in the automatic performance data. The same will be applied below), and it is the sounding timing. When judged, the intro performance data is sent to the sound source 17. As a result, the tone generator 17 generates a musical tone signal corresponding to the intro performance data, is amplified by the amplifier 18, and is emitted from the speaker 19.

When this intro performance sound generation processing is completed or it is determined that the intro performance data is not at the sound generation timing, it is then checked whether or not the intro switch 20 has been turned off (step S15). This is done by checking to see if the intro flag is set off. Here, if it is determined that the intro switch 20 is not off, step S1
4, the tone generation processing based on the above-mentioned intro performance data is performed. Hereinafter, step S14 and step S1
Perform the intro performance while repeatedly executing 5. Although not shown in the figure, processing corresponding to other events is performed in the process of this repeated execution. In the process of repeated execution, the intro switch 2 is operated at step S15.
If it is determined that 0 is turned off, step S16
Proceed to.

Thus, the function of ending the intro performance with the release of the intro switch 20 is realized. Since the intro performance is continued until the player releases the intro switch 20 at an arbitrary time, the performer can perform an intro performance of an arbitrary length.

In step S16, it is checked whether or not the option switch 22 is on. This is done by examining the option flags. Here, if it is determined that the option switch 22 is on,
The process branches to step S17 to start reading the accent performance data. That is, first, the start address of the accent performance data (the address of the external storage device 15) is set in a predetermined address register.

Next, sound is generated based on the accent performance data (step S18). That is, the first accent performance data is taken out from the address position set in the address register. Then, it is checked whether or not the accent performance data is at the sounding timing, and when it is determined that it is the sounding timing, the accent performance data is sent to the sound source 17. As a result, the tone generator 17 generates a musical tone signal corresponding to the accent performance data, for example, a musical tone signal for generating a cymbal tone, and the amplifier 1
It is amplified by 8 and emitted from the speaker 19. The accent performance data is created so that the accent performance is performed with a length of several beats to one measure. With the above processing, the sound generation processing is performed only once.

The pronunciation processing of this accent performance is completed,
Alternatively, if it is determined in step S16 that the option switch 22 is not turned on, the reading of the main performance data is started (step S19). That is, first, RAM
The start address of the main performance data corresponding to the number stored in the 12 performance pattern number areas is set in a predetermined address register.

Next, sound is produced based on the main performance data (step S20). That is, the first main performance data is taken out from the address position set in the address register. Then, it is checked whether or not the main performance data is at the sounding timing.
Send to 7. As a result, a tone signal corresponding to the main performance data is generated in the sound source 17, amplified by the amplifier 18, and emitted from the speaker 19. The step time included in the accent performance data is adjusted so that the sound generation based on the first main performance data and the sound generation based on the accent performance data are performed simultaneously.

When the sounding process of the main performance is completed or it is judged that the main performance data is not at the sounding timing, it is then checked whether or not the stop switch 23 is turned on (step S21). This is done by checking if the stop flag is set on. Here, the stop switch 23
If it is determined that is not turned on, step S2
Returning to 0, the tone generation processing based on the main performance data described above is performed. Hereinafter, step S20 and step S21
Perform the main performance by repeatedly executing. Although not shown in the figure, processing corresponding to other events is performed in the process of this repeated execution. Step S above
When the stop switch 23 is pressed and the stop flag is turned on in the process of repeatedly executing 20 and S21,
The automatic performance is stopped. Therefore, in this case, the main performance is forcibly stopped.

As described above, according to the first embodiment, the intro performance based on the intro performance data is started by turning on the intro switch 20. By turning the intro switch 20 from on to off while this intro performance is being performed,
The intro performance is stopped and the main performance based on the main performance data is started.

Therefore, the performer is required to introduce the intro switch 20.
Is turned on to start the intro performance based on the intro performance data, and the intro switch 20 is turned off at any timing to switch to the main performance based on the main performance data. Therefore, the performer can shift to the main performance after performing the intro performance of a desired length.

In the first embodiment, if the option switch 22 specifies that the accent performance should be performed, the intro switch 20 is turned on while the intro performance based on the intro performance data is being performed. When turned off, the main performance based on the main performance data and the accent performance based on the accent performance data are performed. The main performance and the accent performance can be configured to be performed in parallel.

Therefore, the performer has the intro switch 20.
Is turned on to start the intro performance, and the intro switch 20 is turned off at any timing to switch the intro performance to the main performance and the accent performance. That is, the performer can start the main performance accompanied by the accent performance after performing the intro performance of a desired length. Therefore,
If you prepare accent performance data of an appropriate length,
After the intro performance, it is possible to add accents and shift to the main performance, so that it is possible to perform automatic performance with a sharp effect.

(2) Second Embodiment FIG. 4 is a flow chart showing the processing when an ending performance is performed, which is realized by the processing of the CPU 10.

Before starting the automatic performance, first,
A performance pattern is designated (step S30) and an option is designated (step S31). Since this is the same as the processing of steps S10 and S11 in the above-mentioned intro performance processing, description thereof will be omitted.

After that, it is assumed that the intro switch 20 is pressed to perform the main performance. That is, the sounding process based on the main performance data is performed by the same process as step S16 of the intro performance process (step S3).
2). As described above, the main performance data is fetched from the address position set in the address register, and whether or not the main performance data is at the sounding timing is determined. This is a process of sending data to the sound source 17. As a result, a tone signal corresponding to the main performance data is generated in the sound source 17, amplified by the amplifier 18, and then the speaker 1 is generated.
Sound is emitted from 9.

When the sounding process of the main performance is completed or it is judged that the main performance data is not at the sounding timing, it is then checked whether or not the ending switch 21 is turned on (step S33). This is done by checking if the ending flag is set on. Here, if it is determined that the ending switch 21 is not turned on, the process returns to step S32, and the tone generation process based on the main performance data described above is performed. Hereinafter, the main performance is performed while repeatedly executing steps S32 and S33. In the process of this repeated execution, although not shown in the figure,
Processing corresponding to other events is performed. When the ending switch 21 is pressed in the process of repeatedly executing steps S32 and S33, reading of the ending performance data is started (step S34). That is, first, the start address of the ending performance data (the address of the external storage device 15) is set in the address register.

Next, a sound is produced based on the ending performance data (step S35). That is, the first ending performance data is taken out from the address position set in the address register. Then, it is checked whether or not the ending performance data is at the sounding timing, and when it is determined that it is the sounding timing, the ending performance data is sent to the sound source 17. As a result, the sound source 17
At, a tone signal corresponding to the ending performance data is generated, amplified by the amplifier 18, and emitted from the speaker 19.

When it is determined that the ending performance sound generation processing is completed or the ending performance data is not at the sound generation timing, it is then checked whether or not the ending switch 21 is turned on (step S).
36). This is done by checking if the ending flag is set on. Here, if it is determined that the ending switch 21 is not turned on, the process returns to step S35, and the sounding process based on the ending performance data is performed. Hereinafter, the ending performance is performed while repeatedly executing steps S35 and S36. Although not shown in the figure, processing corresponding to other events is performed in the process of this repeated execution.

When it is determined that the ending switch 21 is turned off in the process of repeating the above steps S35 and S36, the process proceeds to step S37. This realizes the function of ending the ending performance when the ending switch 21 is released. Since this ending performance is continued until the player releases the ending switch 21 at an arbitrary time point, the player can perform an ending performance of an arbitrary length.

In step S37, it is checked whether or not the option switch 22 is on. This is done by examining the option flags. Here, if it is determined that the option switch 22 is on,
The process branches to step S38 and the reading of accent performance data is started. That is, first, the start address of the accent performance data (the address of the external storage device 15) is set in the address register.

Next, a sound is produced based on the accent performance data (step S39). That is, the accent performance data is taken out from the address position set in the address register. Then, it is checked whether or not the accent performance data is at the sounding timing, and when it is determined that it is the sounding timing, the accent performance data is sent to the sound source 17. As a result, the tone generator 17 generates a tone signal corresponding to the accent performance data, for example, a tone signal for generating a cymbal tone, which is amplified by the amplifier 18 and emitted from the speaker 19. The accent performance data is created so that the accent performance is performed with a length of several beats to one measure. With the above processing, the sound generation processing is performed only once.

The pronunciation processing of this accent performance is completed,
Alternatively, if it is determined in step S37 that the option switch 22 is not turned on, the ending performance process ends. Thus, when the ending switch 21 is released, if the option switch 22 specifies that the accent performance should be performed, the accent performance is performed and the automatic performance is terminated, and the option switch 22 should perform the accent performance. If is not specified, the function of ending the automatic performance after the ending performance is realized.

As described above, according to the second embodiment, if the option switch 22 is instructed to perform the accent performance, the ending switch 21 is turned on to change the ending performance data. The ending performance based on this is started. When the ending performance is being performed, the ending switch 21 is turned from on to off, whereby the ending performance is stopped and the accent performance is started.

Therefore, the performer starts the ending performance by turning on the ending switch 21, and the ending switch 21 is started at an arbitrary timing.
You can switch to accented performance by turning off. Therefore, if the performer prepares the accent performance data of an appropriate length, the ending performance of the desired length is performed, and then the accent performance is changed to
After that, the automatic performance can be stopped. If the option switch 22 specifies that the accent performance is not to be performed, the ending performance can be ended without performing the accent performance by releasing the ending switch 21.

Although the intro switch 20 or the ending switch 21 provided on the operation panel 13 is used as the switch means in the first and second embodiments, the keyboard device 14 may be used as the switch means. . That is, in an electronic musical instrument having an upper keyboard and a lower keyboard, a function equivalent to that of the intro switch 20 is assigned to a predetermined key of any keyboard (for example, the upper keyboard), and a function equivalent to that of the ending switch 21 is assigned to another key. . Alternatively, in a keyboard device having a split function in which the key area is divided into a first group and a second group, and different functions are assigned to the respective groups, a function equivalent to that of the intro switch 20 is applied to a predetermined key of a keyboard of any group. Is assigned, and a function equivalent to the ending switch 21 is assigned to another key.

Then, an intro performance is started by pressing a key assigned a function equivalent to that of the intro switch 20, and by releasing the key, the intro performance is shifted to the main performance. . Similarly, the ending performance is started by depressing a key to which a function equivalent to the ending switch 21 is assigned, and the ending performance is changed to the accent performance by releasing the key.

In such a configuration, instead of performing steps S12 and S14 of the flow chart shown in FIG. 3 to check whether the intro switch 20 is turned on or off, the key assigned the function equivalent to that of the intro switch 20 is turned on or off. It can be realized by changing so that it will be examined. Further, steps S33 and S36 of the flowchart shown in FIG. 4 are changed so that instead of checking whether the ending switch 21 is on or off, a key having a function equivalent to that of the ending switch 21 is checked whether it is on or off. It can be realized.

The present invention can also be applied to the fill-in function. That is, a fill-in switch is provided on the operation panel 13, or a function equivalent to the fill-in switch is assigned to a specific key of the keyboard device. By pressing these keys, the fill-in performance is started, and when released, the fill-in performance is stopped and the main performance is stopped. Can be configured to return to.

[0101]

As described in detail above, according to the present invention,
It is possible to provide an automatic performance device capable of switching the automatic performance at a timing desired by the performer.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an electronic musical instrument to which an automatic musical instrument of the present invention is applied.

FIG. 2 is a diagram showing an example of an operation panel used in an embodiment of the present invention.

FIG. 3 is a flowchart showing an operation (intro performance process) of the embodiment of the present invention.

FIG. 4 is a flowchart showing an operation (ending performance process) of the embodiment of the present invention.

[Explanation of symbols]

 10 CPU 11 ROM 12 RAM 13 Operation Panel 14 Keyboard Device 15 External Storage Device 16 External Signal Interface Circuit 17 Sound Source 18 Amplifier 19 Speaker 20 Intro Switch 21 Ending Switch 22 Option Switch 23 Stop Switch 24 Up / Down Switch 24a Up Switch 24b Down Switch 25 display

Claims (4)

[Claims] 1. A storage means for storing first automatic performance data and second automatic performance data, a switch means having an ON state and an OFF state, and a change from the OFF state to the ON state of the switch means. In response, the automatic performance based on the first automatic performance data stored in the storage means is started, and the automatic performance based on the first automatic performance data is stopped in response to the change from the ON state to the OFF state. And an automatic performance means for starting an automatic performance based on the second automatic performance data. 2. Storage means for storing first automatic performance data, second automatic performance data and third automatic performance data, switch means having an on state and an off state, and an off state of the switch means. From the ON state to the ON state, the automatic performance based on the first automatic performance data stored in the storage means is started, and in response to the change from the ON state to the OFF state, the second automatic performance data and the second automatic performance data. 3. An automatic performance device comprising: automatic performance means for starting an automatic performance based on the automatic performance data of 3. 3. The automatic performance device according to claim 1, wherein the switch means is a switch on an operation panel. 4. The automatic musical instrument according to claim 1 or 2, wherein the switch means is a key of a keyboard device.