JPH11119776A - Music playing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it easy to play music. SOLUTION: Rhythm information on note on and off timings and the velocity is extracted from music playing operation on a MIDI keyboard 1 and MIDI data stored in a storage device 4 are corrected. A message is sent out to a MIDI sound source 5 in the timing of the rhythm information and a musical sound is generated in real time. Since other information on an interval, etc., obeys the stored music playing information, the playing operation on the MIDI keyboard 1 is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music playing device such as an electric musical instrument or an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, various types of electric musical instruments and electronic musical instruments have been used to imitate acoustic musical instruments that acoustically generate musical sounds, or to generate new musical sounds that are difficult to generate acoustically. Widely used. In an electric musical instrument, a physical vibration is generated similarly to an acoustic musical instrument, the vibration is converted into an electric signal, amplified, and converted into a sound output again by a speaker. Various methods have been devised for electronic musical instruments, such as changing the waveform, frequency, and envelope of electric signals generated in an analog manner, generating musical tone waveforms by digital signal processing, and processing the collected sound source waveforms. It is generated as a musical tone.

[0003] With the development of electric and electronic musical instruments themselves,
Musical Instrument Digital Interchange is used to unify transmission of music performance information using digital signals between musical instruments.
A unified standard called MIDI has spread from face.
MIDI is a registered trademark of the MIDI Standards Council. When an electronic musical instrument compliant with the MIDI standard is used, music performance information can be stored in advance as MIDI data, and the stored content can be read out to cause the electronic musical instrument to automatically perform. Even if it is technically difficult to actually play a part, it can be easily played if MIDI data is created in advance over time.

[0004] As described above, one of the features of the electronic musical instrument is that the music performance is simplified and many people are given an opportunity to get acquainted with the music performance. For example, Japanese Patent Publication No. 62-87
No. 95 discloses an idea of an electronic musical instrument which makes it possible to read a pitch code stored in a memory by playing a rhythm pattern and easily play a melody or accompaniment.

[0005]

The performance of music should itself bring joy. However, if the performance cannot be performed easily, the joy of playing cannot be felt. In particular, when using an acoustic instrument, a smooth performance cannot be performed unless the player has mastered the performance technique and has performed a considerable amount of practice. For electronic musical instruments,
When preparing MIDI data in advance and automating music performance, it is not possible to actually play music in real time, but only to indirectly participate in the data creation stage. According to the prior art of Japanese Patent Publication No. 62-8795, melody and accompaniment can be performed if a rhythm pattern is played in real time. I can hardly feel the joy of playing.

[0006] It is an object of the present invention to provide a music performance device that can easily play music and can feel the joy of playing.

[0007]

SUMMARY OF THE INVENTION The present invention controls a sound source in accordance with music performance information and stores music performance information created in advance in a music performance device for playing music using an acoustic signal generated from the sound source. Storage means, and input means capable of inputting music performance information including sound intensity and time change in real time as at least a part of rhythm information,
Performance means for reading music performance information stored in the storage means in real time based on the music performance information input to the input means, and controlling a sound source in accordance with the read music performance information to perform music performance. A music performance device characterized by the following.

According to the present invention, the music performance information input to the input means in real time includes at least a part of the rhythm information including the intensity of the sound and a change over time. The music performance information stored in the storage means is read out in real time by the performance means based on the rhythm information, and the music source is controlled to perform the music performance. By inputting rhythm information including the intensity of the sound and the time change into the input means, the music can be easily performed. When actually performing, the rhythm information can be changed according to the player's emotions and the like, so that the joy of playing music can also be enjoyed.

According to the present invention, the storage means stores music performance information encoded according to a predetermined standard.
The playing means corrects the corresponding rhythm information in the stored music performance information with the rhythm information input to the input means, controls the sound source according to the corrected music performance information, and plays the music performance. It is characterized by performing.

According to the present invention, since the music performance information stored in the storage means is encoded according to a predetermined standard, a corresponding portion can be easily identified by the rhythm information and corrected for real-time performance. can do.

In the present invention, the storage means stores music performance information encoded according to a predetermined standard.
When performing the music performance by controlling the sound source according to the stored music performance information, the performance means corrects the sound signal generated from the sound source with the rhythm information input to the input means while performing the music performance. Is performed.

According to the present invention, since the music performance information stored in the storage means is encoded according to a predetermined standard, a corresponding portion can be easily identified by the rhythm information, and a sound source can be identified by the identified portion. Can be corrected in accordance with the timing of the acoustic signal generated from.

In the present invention, the rhythm information can be input to the input means via a communication network.

According to the present invention, it is possible to input rhythm information via a communication network, read out music performance information stored in the storage means in real time in accordance with the input rhythm information, and control a sound source. Since only a part of the music performance information needs to be transmitted via the communication network, sufficient real-time music performance can be performed via a communication network having a small transmission capacity such as a telephone line.

In the present invention, the input means is capable of receiving an audio signal, and the playing means controls the sound source in accordance with stored music performance information to perform a music performance. It is characterized in that music performance is performed while adjusting the sound signal generated from the sound source in synchronization with the input audio signal.

According to the present invention, music performance can be performed in synchronism with audio signals, so that accompaniment such as karaoke can be synchronized with singing.

Further, according to the present invention, an electric musical instrument which can be played by the input means is provided as the sound source, and the playing means converts a pitch of an output of the electric musical instrument to a pitch of music performance information stored in the storage means. It is characterized in that it is changed to follow.

According to the present invention, the electric musical instrument is used as a sound source, and the pitch of the output of the electric musical instrument is made to follow the pitch of the music performance information stored in the storage means, so that the performance on the electric musical instrument can be easily performed. .

In the present invention, the storage means stores music performance information encoded in accordance with a predetermined standard.
The input means receives music performance information encoded in accordance with the standard, and the performance means converts the pitch information of the music performance information stored in the storage means into a music performance input to the input means. It is characterized in that the information is replaced with pitch information.

According to the present invention, for example, by playing an electronic musical instrument or the like and inputting encoded music performance information to the input means, the pitch of the input music performance information is stored in the storage means. Since the performance is made to follow the pitch of the performance information, the performance can be easily performed.

Further, the present invention is characterized in that it comprises storage means for encoding and storing the contents of the performance by the performance means in accordance with the standard.

According to the present invention, the contents of the performance by the performance means are encoded and stored by the storage means in accordance with the standard.
The performance results can be used.

Also, according to the present invention, the performance means controls the sound source in accordance with the music performance information stored in the storage means to perform a music performance, and based on the music performance information input to the input means. It is characterized by comprising switching means for switching between a music performance operation performed by reading the music performance information stored in the storage means.

According to the present invention, the music performance information stored in the storage means is read out as it is to control the sound source and the music is played, and the stored music performance information is input to the input means. Based on the information, the sound source is read out in real time, the sound source is controlled, and the state of playing music can be switched by the switching means. By providing the switching means, it is possible to be involved only during the music performance.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In each of the drawings, the same reference numerals are given to portions corresponding to the preceding drawings, and redundant description will be omitted.

FIG. 1 shows a schematic electrical configuration of the first embodiment of the present invention. The MIDI keyboard 1, which is an input means, has a plurality of keyboard-like keys, and can generate MIDI messages in real time in response to key operations. The MIDI message is serial data as the MID of the personal computer 2 which is the performance means.
Input to I IN. The personal computer 2
In accordance with a program set in advance and stored in an internal memory, the display device 3 reads out MIDI data stored in the storage device 4 in a standard MIDI file format while displaying an image. Personal computer 2
Can provide MIDI data to the MIDI sound source 5 to generate a musical tone. The musical sound generated from the MIDI sound source 5 is electrically amplified by the amplifier 6 and converted into an audio output by the speaker 7. The personal computer 2 includes a keyboard, a mouse, and the like as input devices, and can perform various operation instructions and data settings. The changeover switch 8 assigns any of the switches and keys provided on the keyboard by a program, and the display device 3
Can be formed in the image displayed on the display screen and operated with a mouse.

As the display device 3, for example, a cathode ray tube abbreviated as a CRT, a liquid crystal display device abbreviated as an LCD, etc. are used in many cases. The storage device 4 can be mounted with a removable storage medium such as a floppy disk or a CD-ROM. MIDI data is generally stored on a storage medium in the form of a standard MIDI file. The personal computer 2 can also read out the music performance information stored in the storage device 4 and display the content on the display device 3 in the form of a musical score. The MIDI tone generator 5 includes, for example, an electronic synthesizer, and can generate musical tones according to MIDI messages.

Of the MIDI messages, real-time music performance information is mainly represented by a note-on voice message generated when a key is pressed and a note-off voice message generated when a key is released. Note·
The ON message includes a channel designation, a note number indicating a pitch corresponding to the pressed key, and a velocity corresponding to how the key is pressed.

FIG. 2 shows the concept of switching by the changeover switch 8 in the embodiment of FIG. The operation is started from step a1, and it is checked in step a2 whether the changeover switch 8 is ON. If it is ON, a MIDI semi-automatic performance is performed in step a3. Step a2
If it is determined that the changeover switch 8 has not been turned on, a normal MIDI automatic performance is performed in step a4.
In the MIDI automatic performance, the MID read from the storage device 4
I data as MIDI message
It operates as a sequencer provided to the sound source 5. Step a
3 MIDI semi-automatic performance and MID of step a4
In the I automatic performance, whether or not the MIDI data stored in the storage device 4 is completed is checked at any time. When it is determined that the MIDI data does not end, the process returns to step a2. Hereinafter, as long as there is MIDI data, step a2
The operation from step to step a5 is repeated, and when the MIDI data is completed, the operation is completed in step a6.

By operating the changeover switch 8, the playing state is switched in the middle of one tune, and only the part of interest can be played semi-automatically, and the other part can be played automatically and only listening to it. .

FIG. 3 shows the basic operation of the semi-automatic performance in step a3 of FIG. The operation starts from step b1, and in step b2, the control waits for a MIDI message indicating note-on from the MIDI keyboard 1 to be input. When the note is turned on, the first MIDI data is read from the storage device 4 in step b3. MI read
Among the DI data, the velocity is the MID in step b4.
It is replaced by the velocity in the note-on message input from the I keyboard 1. In step b5, the MIDI data whose velocity has been replaced is transmitted to the MIDI sound source 5 as a MIDI message. In step b6, the process waits for a note-off message to be input from the MIDI keyboard 1. Release the previously pressed key and a note-off message will be generated. When the key is held down, the note-on MIDI message must continue to occur at time intervals not exceeding the maximum defined time, so returning to step b5, the note-on MIDI message is returned. The MIDI data corresponding to the continuation is transmitted. When note-off is input in step b6, the MIDI data to be sent to the MIDI tone generator 5 is also changed to a note-off message in step b7, and the semi-automatic performance operation corresponding to one note ends in step b8. .

It should be noted that in the entire performance including the semi-automatic performance, M
The content of the MIDI message sent to the IDI sound source 5 is
It can also be stored in the storage device 4 or the like. By using it as MIDI data for the next performance, it is possible to bring the performance content closer to the desired direction.

FIG. 4 shows a schematic electrical configuration of the second embodiment of the present invention. In the present embodiment, an electric musical instrument 9 is used as an input unit. In the electric musical instrument 9, for example, a vibrating element such as a string is physically vibrated in a performance operation, and the vibration is electrically detected and amplified, and is converted into an acoustic output. From the electric musical instrument 9, a change in the envelope specific to the vibration element is also obtained. In the present embodiment, an envelope component is extracted from the output of the electric musical instrument 9. The storage device 4 stores music performance information in advance. The personal computer 2 as the playing means can correct the stored music playing information with the extracted envelope component, amplify it with the amplifier 6, and convert it into a musical tone. Since the envelope defines the state of generation of each sound, information on the rhythm composed of the sounds can also be obtained from the set of envelopes.

It is also possible to extract the strength and tempo of the sound from the output of the electric musical instrument 9 as rhythm information, and to correct the strength and tempo of the finer rhythm pattern based on the information. For fast-changing passages, etc., that are difficult to play directly in real time,
The output of the electric musical instrument 9 may be used as a reference for a partial timing so that a sound can be generated with a change earlier than the actual operation on the electric musical instrument 9. When such a concept is applied, for example, a mouse provided in the personal computer 2 is moved to measure the time signature, and the tempo or strength of the music performance information stored in the storage device 4 is corrected based on the rhythm of the movement. Is also possible. It is also possible to capture the movement of a hand or the like, detect the movement state in the image, and control the rhythm of music performance with the same feeling as conducting.

Further, the sound generated by the electric musical instrument 9 is sampled by the personal computer 2, and the reproduction rate is changed or the reproduction rate is kept constant in accordance with the pitch information in the music performance information stored in the storage device 4. If data is thinned out or interpolated, the pitch can be converted to a pitch different from the pitch generated by the electric musical instrument 9.

FIG. 5 shows a schematic electrical configuration of the third embodiment of the present invention. In this embodiment, a modem 11 is connected to a music performance device 10 similar to that of the embodiment of FIG. I have to. If a music performance device 14 equivalent to the music performance device 10 is connected to the other party via the public telephone line 12 via the modem 13, an ensemble can also be performed via the public telephone line 12. When performing an ensemble, the music performance information of the other party may be stored in the storage device 4 in advance, and a tone may be generated in accordance with the received rhythm information. The music performance devices 10 and 14 according to the present embodiment conform to the MIDI standard,
Since the information transmitted through the public telephone line 12 is not the entire MIDI message but only the rhythm information,
The amount of information to be transmitted can be reduced, and ensemble can be performed by bidirectional transmission via the public telephone line 12.

FIG. 6 shows a schematic electrical configuration of the fourth embodiment of the present invention. In the present embodiment, the audio processing device 1
5, the rhythm information is detected from the change in the sound input to the microphone 16, and the music performance information stored in advance in the storage device 4 is corrected to match the rhythm information.
Perform music. When the music performance information stored in the storage device 4 is so-called karaoke accompaniment, the rhythm of the accompaniment changes according to the rhythm of the singer's voice. Therefore, the singer can lead the rhythm, and the accompaniment can follow even when singing at a free tempo.

The voice processing device 15 can easily detect a singing start portion where voice generation starts from a silent state. The rhythm in the middle of singing is detected from a change in amplitude and a change in pitch. To change the pitch, perform fast Fourier transform in real time using a DSP, etc.
Can be detected.

In each of the embodiments described above, the personal computer 2 is used as the performance means, but a dedicated sequencer or other computer device can be used in the same manner. Although the first, third, and fourth embodiments perform data processing based on the MIDI standard, the present invention can be similarly applied to a system that conforms to a similar standard. Also, the sound sources of the third and fourth embodiments are not necessarily MID
It is not necessary to be the I sound source 5, but any sound source that can be controlled by analog voltage or digital data can be used.

[0040]

As described above, according to the present invention, it is possible to easily perform a music performance by inputting rhythm information including the intensity and time change of sound to the input means. Since the rhythm information can be changed according to the player's emotions, the joy of playing music can be enjoyed.

According to the present invention, the music performance information stored in the storage means can be modified for real-time performance based on the rhythm information.

Further, according to the present invention, since the music performance information stored in the storage means is encoded according to a predetermined standard, the corresponding portion can be easily identified by the rhythm information, and the identified portion can be identified. The correction can be made in accordance with the timing of the sound signal generated from the sound source.

According to the present invention, for example, only a part of music performance information is transmitted via a communication network, and sufficient real-time music performance is performed via a communication network having a small transmission capacity such as a telephone line. be able to.

Further, according to the present invention, the accompaniment can be adjusted to the rhythm of the singing, so that the singing can be easily performed without having to adjust the singing to the accompaniment.

Further, according to the present invention, the pitch of the output of the electric musical instrument is made to follow the pitch of the music performance information stored in the storage means, so that the performance on the electric musical instrument can be performed easily.

According to the present invention, the encoded music performance information is input to the input means, for example, by playing an electronic musical instrument, and the pitch is made to conform to the pitch of the music performance information stored in the storage means. Performance can be performed easily.

Further, according to the present invention, the contents of the performance by the performance means are encoded and stored by the storage means according to the standard, so that the performance results can be utilized.

Further, according to the present invention, the state in which the stored music performance information is read as it is to control the sound source and the state in which the sound source is controlled in real time based on the rhythm information inputted to the input means are controlled. , Can be switched by switching means. By providing the switching means, it is possible to be involved only during the music performance.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration of a first embodiment of the present invention.

FIG. 2 is a flowchart showing a switching state of the operation of the personal computer 2 by the changeover switch 8 of FIG.

FIG. 3 is a flowchart showing a semi-automatic performance procedure of the embodiment of FIG. 1;

FIG. 4 is a block diagram showing a schematic electrical configuration of a second embodiment of the present invention.

FIG. 5 is a block diagram showing a schematic electrical configuration of a third embodiment of the present invention.

FIG. 6 is a block diagram showing a schematic electrical configuration of a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 MIDI keyboard 2 Personal computer 3 Display device 4 Storage device 5 MIDI sound source 7 Speaker 8 Changeover switch 9 Electric musical instrument 10, 14 Music performance device 11, 13 Modem 12 Public telephone line 15 Audio processing device 16 Microphone

Claims (9)

[Claims] 1. A music performance apparatus for controlling a sound source in accordance with music performance information and playing music using an acoustic signal generated from the sound source, comprising: storage means for storing music performance information created in advance; An input unit capable of inputting music performance information including the intensity and time change of sound in real time, and music performance information stored in a storage unit based on the music performance information input to the input unit. A music performance device for controlling a sound source in accordance with the read music performance information and performing a music performance. 2. The storage means stores music performance information encoded in accordance with a predetermined standard. The performance means includes rhythm information input to the input means, wherein the stored music performance information includes 2. A music performance is performed by correcting the corresponding rhythm information by controlling the sound source according to the corrected music performance information.
A music playing device as described. 3. The storage means stores music performance information encoded in accordance with a predetermined standard. The performance means controls the sound source according to the stored music performance information to perform music performance. 2. The music performance apparatus according to claim 1, wherein the music performance is performed while correcting the acoustic signal generated from the sound source with the rhythm information input to the input means. 4. The music performance apparatus according to claim 1, wherein said input means is capable of inputting said rhythm information via a communication network. 5. The input means is capable of receiving an audio signal, and the playing means is input to the input means when controlling the sound source in accordance with stored music performance information to perform a music performance. The music performance apparatus according to any one of claims 1 to 3, wherein the music performance is performed while adjusting the sound signal generated from the sound source in synchronization with the audio signal. 6. An electronic musical instrument which can be played by the input means as the sound source, wherein the playing means follows a pitch of an output of the electric musical instrument according to a musical performance information stored in the storage means. The music performance device according to any one of claims 1 to 3, wherein the music performance device is changed. 7. The storage means stores music performance information encoded according to a predetermined standard. The input means receives music performance information encoded according to the standard. 2. The music performance apparatus according to claim 1, wherein the pitch information in the music performance information stored in the storage means is replaced with the pitch information in the music performance information input to the input means. 8. The music performance apparatus according to claim 7, further comprising storage means for encoding and storing performance contents of said performance means in accordance with said standard. 9. An operation in which the playing means controls the sound source in accordance with the music performance information stored in the storage means to perform a music performance, and stores the music performance information in the storage means based on the music performance information input to the input means. The music performance apparatus according to any one of claims 1 to 8, further comprising switching means for switching between a music performance operation performed by reading stored music performance information.