JPH11219175A - Automatic music playing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch music during playing without becoming unnatural while playing on the basis of stored music data by constituting a music playing starting means in such a way as to stop playing at the time of detecting a pedal on event and to instruct reading of the following music data to start playing. SOLUTION: A music playing starting means 8 has a CPU 101, inputs a pedal on event detected by a pedal on event detecting means 2 and makes a music playing detecting means 7 detect whether music is played or not upon the input of the pedal on event of a sostenuto pedal. During playing, the music playing starting means 8 stops playing processing of a music playing sound generating means 4, clears former music data stored in a buffer, outputs the following music data stored in another buffer to the music playing sound generating means 4 to start playing, instructs a music data reading means 6 to read the following music and stores newly read music data in the cleared buffer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus for performing a performance based on stored music data.

[0002]

2. Description of the Related Art Conventionally, electronic musical instruments and the like have been stored in advance (in the case of a preset or in advance by user input recording) in order to complement the performance technique of a player or simply to play a demo song. Some of them have a function of performing automatic performance (playing of a melody or accompaniment) of a tune (which may be stored). These are used to select a music piece from a plurality of stored music pieces by using a panel operator or the like, and to perform the performance (playing of the melody or accompaniment, hereinafter the same).

[0003]

In the case where the above automatic performance is performed, and particularly when a plurality of music pieces are continuously played, when the music pieces are switched in the middle of the performance, the music pieces which have been commercialized so far are used. In many cases, the switching instruction is issued by a panel operator or a keyboard. However, if a music piece is switched in these configurations during a performance, the user may release his hand from the keyboard during the operation, so that the performance may be interrupted.

The present invention has been made in view of the above-described problems of the prior art, and has an automatic performance that can switch the music being played without causing unnaturalness while performing based on the stored music data. No device is provided.

[0005]

According to a first aspect of the present invention, there is provided an automatic performance apparatus comprising: a pedal provided for instructing various kinds of processing including addition of a sound effect;
Pedal-on event detecting means for detecting an event, and music data storing predetermined music data (preset music data) in advance and / or storing music data to be played (music data input in real time) Storage means;
Music performance sound generating means for performing music according to the music data; music data storage means for storing music data stored in the music data storage means, or music data selection and music data order; The music data is read from the music data storage means in accordance with the performance order stored in the music order storage means, temporarily stored in a buffer, and the music data stored there is output to the music performance sound generation means. Basically, it has data reading means and music performance start means for inputting the pedal ON event detected by the pedal ON event detection means and instructing the music data reading means to read the next music data based on the pedal ON event. Features. That is, in the present configuration, the music being played is switched to the next music, and the performance is started. For this reason, switching is not performed by operating panel controls or keyboard operation, but it is possible to perform switching operation without releasing your hand from the keyboard. The means instructs the music data reading means to read the next music data, and causes the music performance sound generating means to start the performance based on the instruction.

According to a second aspect of the present invention, there is provided an automatic performance apparatus comprising: a pedal provided for instructing various kinds of processing including sound effect addition; pedal ON event detecting means for detecting an ON event of the pedal; Music data storage means for storing data in advance and / or music data to be played; music performance sound generating means for performing music according to the music data; Music order storage means for storing the performance order of the stored music data, or selection of the music data and the performance order, music data to be played first in accordance with the performance order stored in the music order storage means, and the next performance Song data read out from the song data storage means and temporarily stored in a buffer, and the song data stored therein is output to the song performance sound generating means in accordance with the playing order. Means, a performance detection means for detecting that a music performance is being performed by the music performance sound generation means, a pedal ON event detected by the pedal ON event detection means, and an input of the pedal ON event. When the performance is detected, the performance detection means detects whether or not the music is being played. And clears the previous music data stored in the buffer, and outputs the next music data stored in another buffer to the music performance sound generation means to start the performance. Song performance start means for instructing the reading of song data and storing the newly read song data in a buffer in which the previous song data has been cleared. There. That is, in the present configuration, the music is switched to the next music while the music is being played, and the performance is started immediately. Therefore, when the music being played is detected, the music is switched. To stop the performance of the song, clear the song data, start the performance based on the next song data stored in another buffer, and store the new song data in the cleared buffer. Is performed.

[0007] The pedal used in the automatic performance device of these claims is preferably a pedal that is used least frequently, especially a sostenuto pedal. The pedal applies only the sound of the key pressed when the pedal is depressed, and prevents such an effect from being applied to the sound of the key pressed after depressing the pedal, and is used least frequently. So, we try to use it effectively. In particular, when playing demo songs, it is not necessary to add the above sound effects, so there is no problem using them for song switching.
Switching at that time can be performed smoothly.

In the configuration of these automatic performance devices, if the performance order of the music data stored in the music order storage means, or the selection of the music data and the performance order can be set from the outside, it is possible to meet the preference of the player. The music playing order or the music selection and the music playing order can be determined accordingly, and when the music is switched during the performance, the originality of the player can be exhibited depending on the music selection and the switching timing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory diagram showing the configuration of an embodiment of an electronic piano using an automatic performance device according to claim 2 of the present invention.

In the configuration shown in FIG. 1, a keyboard unit 10 connected to a bus 100 via a CPU 101, a RAM 102, a ROM 103, and a keyboard interface 104a.
4, a panel operation unit 10 which can be operated via a panel switch connected via the panel interface 105a
5. a pedal operation unit 106 which is connected via the pedal interface 106a and can operate the pedal 1 described later;
Each of the tone generation circuits 107 is connected to the bus 100.
Various commands and data are transferred to these devices through the communication. Also, a D / A conversion circuit 107a for converting the generated musical sound into an analog signal, an amplifier 107b for amplifying the analog signal, and a reproducing device 107c such as a speaker for generating an external sound are electrically connected to the musical sound generating circuit 107. ing.

FIG. 2 is a functional block diagram of an automatic performance device constructed according to the present invention.
Event detection means 2, music data storage means 3, music performance sound generation means 4, music order storage means 5, music data reading means 6, performance detection means 7, music performance start means 8,
And

The pedal 1 is a part of the configuration of the pedal operation section 106, and when a player steps on the pedal, gives instructions for various processes including the addition of a sound effect. It is composed of three parts: a sostaine pedal and a soft pedal.

The pedal ON event detecting means 2 is a sensor which is also a part of the configuration of the pedal operating section 106. When a player depresses the pedal 1, the pedal 1
This is a configuration for detecting the ON event.

The music data storage means 3 has a predetermined storage area of the RAM 102 for storing music data inputted in real time, and a ROM 1 for presetting music data.
03.

The music performance sound generation means 4 comprises a music sound generation circuit 107 having a D / A conversion circuit 107a, an amplifier 107b, and a reproduction device 107c. Perform the song. At the same time, a flag indicating that the music is being played is stored in the RAM 102.
Set to.

The music order storage means 5 comprises a predetermined storage area of the RAM 102, and the music data storage means 3
The selection of the music data stored and the order of the performance can be stored. In addition, the order can be changed or music can be selected from the outside by a panel switch of the panel operation unit 105.
This can be stored in the music order storage means 5.

The music data reading means 6 includes a predetermined storage area of the RAM 102 forming a buffer,
The music data to be played first and the music data to be played next are read out from the music data storage means 3 in accordance with the performance order stored in the music order storage means 5 and temporarily stored in the buffer. And the music data stored therein is stored in the music performance sound generating means 4 in accordance with the performance order.
Output function.

The performance detecting means 7 comprises a CPU 101. When the music performance sound generating means 4 is performing, the performance detecting means 7 detects a flag set in the RAM 102 indicating that the performance is being performed, and It has a function of detecting that a performance is being performed. In addition, a level converter (not shown) for inputting a signal from the D / A conversion circuit 107a and a CPU 10 for inputting a signal from the level converter
1 may be configured to be able to detect when there is an output from the music performance sound generating means 4.

The music performance start means 8 includes a CPU 10
1, the pedal ON event detected by the pedal ON event detecting means 2 is input, and when the pedal ON event of the sostenuto pedal is input, the musical performance is performed by the performance detecting means 7. The performance of the music performed by the music performance sound generation means 4 is stopped when the music is being played, and the previous music data stored in the previous buffer is cleared; and The next music data stored in another buffer is output to the music performance sound generating means 4 to start the performance, and the music data reading means 6 is further instructed to read the next music data, and the previous music data is read. Has a function of storing the newly read music data in the buffer in which is cleared.

FIG. 3 is a flowchart showing the entire processing flow of the configuration of the electronic piano. When the power is turned on, first in step S1, the CPU 101 or the RAM 1
Initialization such as 02 is performed. In step S2, panel event processing is performed in which panel event detection is performed by the panel operation unit 105 and processing based on the panel event is performed. Further, in step S3, pedal event processing for detecting a pedal event and executing various processing based on the detection is performed. Further, in step S4, a keyboard event process for detecting a key event and executing processes based on the key event is performed. When the processing is completed, a step S2
Then, the process returns to the panel event process described above, and the above process is repeated by a loop.

FIG. 4 shows details of the pedal event process (step S3) of FIG. In the pedal event process of step S3, the pedal information is read and executed every t (msec). Therefore, in step S30, it is checked whether t (msec) has elapsed. If the time has not elapsed, the pedal event processing is passed. On the other hand, if the time has elapsed, in step S31, ON events are read from the pedal ports of the damper pedal, the soft pedal, and the sostenuto pedal, and the NEW of the NEW is stored in the buffer of the RAM 102.
Writing is performed as data. In step S32, a damper pedal process is performed. Step S3
At 3, a soft pedal process is executed. In step S34, a sostenuto pedal process is performed. In step S35, processing for saving pedal port data is performed (written in the RAM buffer as old data).

FIG. 5 shows details of the damper pedal process (step S32) of FIG. Step S320
Then, based on a comparison of whether the ON event data stored in the RAM buffer is new or old,
An ON event detection process is performed. When the ON event data is determined to be new in the processing (ON
If there is an event), in the next step S321,
The damper ON flag is set. If it is determined that the ON event data is old (there is no ON event), the setting of the damper ON flag is passed. In step S322, an OFF event detection process is performed. If it is determined in this processing that the OFF event data is new (if there is an OFF event), the damper ON flag is reset in the next step S323, and the key is turned off (key off on the keyboard) in step S324. Turn off the sound that is sounding. That is, even if the key is released while the damper is ON, the sound remains forever, so when the damper is turned OFF, the sound must be erased by key-off. If it is determined that the OFF event data is old (there is no OFF event), the reset of the damper ON flag is passed.

FIG. 6 shows details of the soft pedal processing (step S33) of FIG. In step S330,
Based on a comparison of whether the ON event data stored in the RAM buffer is new or old,
Event detection processing is performed. If it is determined in the processing that the ON event data is new (if there is an ON event), the soft ON flag is set in the next step S331. If it is determined that the ON event data is old (there is no ON event), the setting of the soft ON flag is passed. In step S332, an OFF event detection process is performed. If it is determined in the processing that the OFF event data is new (if there is an OFF event), the soft ON flag is reset in the next step S333. If it is determined that the OFF event data is old (there is no OFF event), the reset of the soft ON flag is passed.

FIG. 7 shows details of the sostenuto pedal processing (step S34) of FIG. Step S3
At 40, ON event detection processing is performed based on a comparison of whether the ON event data stored in the RAM buffer is new or old. ON in the process
If it is determined that the event data is new (if there is an ON event), the next step S34
At 1, the sostenuto ON flag is set. After the sostenuto ON flag is set, step S342
The song performance start means 8 includes a demo song (including not only preset songs but also songs recorded by the performer).
Is detected by the performance detecting means 7 (detection of a flag indicating that the performance is being performed). If the performance is being performed, in step S343, the music performance start means 8 stops the performance processing of the music by the music performance sound generation means 4, and clears the stopped music data stored in the RAM buffer. In step S344, the next music data stored in another buffer is output to the music performance sound generating means 4. Then, in step S345, the performance based on the new music data is started. At this time, the music performance start means 8 further instructs the music data reading means 6 to read the next music data, and stores the newly read music data in the cleared buffer. If it is determined in step S342 that the music is not being played, step S3
The following 43 processes are passed. On the other hand, step S3
If it is determined in step 40 that the ON event data is old (there is no ON event), the process proceeds to step S346, where OFF event detection processing is performed. When it is determined that the OFF event data is new in the processing (when there is an OFF event)
In the next step S347, the sostenuto ON flag is reset, and further, in step S348, the sound produced by key-off (key-off on the keyboard) is turned off. That is, even if a key is released while the sostenuto is on, the sound remains forever, so that when the sostenuto pedal is turned off, the sound must be erased by key-off. Further, if the OFF event data is determined to be old (there is no OFF event), the reset of the sostenuto ON flag is passed.

When the above sostenuto processing is completed,
A process of storing pedal port data in step S35 of the pedal event process of FIG. 4 is performed, and a keyboard event process of step S4 of FIG. 3 is executed. Upon completion of the process, the process returns to the panel event process of step S2. The above processing is repeated by a loop.

With the above arrangement, the presence of a music being played is detected, and when the music is switched, the performance of that music is stopped and the music data is cleared, and the next music data stored in another buffer is cleared. Since the performance based on the music data is started, it is possible to switch to the next music during the performance of the music and start the performance instantly. In addition, the pedal used for switching is the sostenuto pedal that is used least frequently, so when playing demo songs etc.,
There is no need to add a new sound effect unique to the sostenuto pedal, and when used for music switching, the switching can be performed smoothly.

The configuration described so far is the configuration of the embodiment of the present invention applied to an electronic piano, but is not limited to this. A similar configuration can be provided. Furthermore, if the configuration of the keyboard and the pedal can be connected to a personal computer or the like, a desktop music configuration using the personal computer can be provided with the same configuration of the automatic performance device. Further, these configurations do not have to be integrated as a single device configuration, but each function is integrated as a separate configuration or integrated into a plurality of function groups, and is integrated into a plurality of device configurations. These may be connected by MIDI or the like.

[0028]

According to the automatic performance device of the present invention described in detail above, when switching the music being played to the next music, the pedal ON event can be performed without switching by operating the panel controls or the keyboard. The song performance start means instructs the music data read means to read the next music data when the music data is detected and causes the music performance sound generation means to start the performance based on the data. The switching operation can be performed without releasing the hand from the keyboard, and the music being played can be switched with a natural feeling without interruption of the performance. According to the configuration of the second aspect, the music being played is detected, and when the music is switched, the performance of the music is stopped and the music data is cleared, and the music data is stored in another buffer. Since the performance based on the next song data is started, and the new buffer data is stored in the old buffer that has been cleared, switching to the next song is performed during the performance of the song. To start the performance instantly. The pedal used in the present automatic performance device is preferably a pedal that is used least frequently, particularly a sostenuto pedal. In particular, in the reproduction of a demo song or the like, since it is not necessary to add the original sound effect of the sostenuto pedal, there is no problem even if it is used for song switching, and the switching at that time can be performed smoothly. Furthermore, in the configuration of these automatic performance devices, if the performance order of the music data stored in the music order storage means or the selection of the music data and the performance order can be set from the outside, it is possible to meet the preference of the player. In this manner, the order in which the music is played or the music selection and the music playing order can be determined. In particular, when the music is switched during the performance, the originality of the player can be exhibited depending on the music selection and the switching timing.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of an electronic piano using an automatic performance device according to claim 2;

FIG. 2 is a functional block diagram of an automatic performance device configured according to the present invention.

FIG. 3 is a flowchart showing an overall processing flow of the electronic piano.

FIG. 4 is a flowchart showing details of a pedal event process.

FIG. 5 is a flowchart showing details of a damper pedal process.

FIG. 6 is a flowchart showing details of a soft pedal process.

FIG. 7 is a flowchart showing details of a sostenuto pedal process.

[Explanation of symbols]

 Reference Signs List 1 pedal 2 pedal ON event detection means 3 music data storage means 4 music performance sound generation means 5 music sequence storage means 6 music data read means 7 music performance detection means 8 music performance start means 100 bus 101 CPU 102 RAM 103 ROM 104 keyboard 104a Keyboard interface 105 Panel operation unit 105a Panel interface 106 Pedal operation unit 106a Pedal interface 107 Musical sound generation circuit 107a D / A conversion circuit 107b Amplifier 107c Playback device

Claims (5)

[Claims] 1. A pedal provided for instructing various kinds of processing including sound effect addition, pedal ON event detecting means for detecting an ON event of the pedal, and predetermined music data stored in advance and / or Music data storage means for storing music data to be played, music performance sound generating means for performing music in accordance with the music data, and a performance order of the music data stored in the music data storage means, or Song order storage means for storing song data selection and its playing order; song data is read from the song data storing means in accordance with the playing order stored in the song order storing means and temporarily stored in a buffer; Music data reading means for outputting the stored music data to music performance sound generating means, and a pedal ON event detected by the pedal ON event detecting means, and An automatic performance device comprising: a music performance reading means for instructing the music data reading means to read the next music data. 2. A pedal provided for instructing various kinds of processing including sound effect addition, pedal ON event detecting means for detecting an ON event of the pedal, and predetermined music data stored and / or stored in advance. Music data storage means for storing music data to be played, music performance sound generating means for performing music in accordance with the music data, and a performance order of the music data stored in the music data storage means, or Song order storage means for storing song data selection and its order of performance; song data to be played first and song data to be played next in accordance with the performance order stored in the song order storage means; Song data read means for temporarily storing the song data stored in the buffer, and outputting the song data stored therein to the song performance sound generating means in accordance with the order of performance. And a pedal ON event detected by the pedal ON event detecting means.
When the N event has been input, the performance detecting means detects whether or not the music is being played, and when the performance is being performed, the performance processing of the music by the music performance sound generating means is stopped. The music data reading means clears the previous music data stored in the previous buffer, and outputs the next music data stored in another buffer to the music performance sound generation means to start the performance. And a music performance start means for instructing the reading of the next music data and storing the newly read music data in a buffer in which the previous music data has been cleared. 3. The automatic performance apparatus according to claim 1, wherein said pedal is the least frequently used pedal. 4. The automatic performance device according to claim 3, wherein
The automatic performance device according to claim 3, wherein the pedal is a sostenuto pedal. 5. The automatic performance device according to claim 1, wherein the performance order of the music data stored in said music order storage means, or the selection of the music data and the performance order can be set from outside. The automatic performance device according to claim 1.