JPH10260678A - Electronic instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To output a playing sound by an internal speaker by allowing the equipment to output its playing sound to the outside as a first musical sound signal, mixing the playing sound with a playing sound, a voice sound, etc., of another musical instruments by external equipment, and inputting the resulting sound to the electronic musical instrument. SOLUTION: The musical sound signal generated by the electronic musical instrument is outputted to the external equipment by using an external output interface 2S and the external equipment mixes it with sounds of other musical instruments and giving various effects, and then the resulting signal is inputted through an external input interface 2T, so that the internal speaker can be used as if it were a monitor speaker. Further, the musical sound signal from the external equipment which is inputted through the external input interface 2T is mixed by an internal mixer 2N without using the external interface 2S, and then the playing sound of the performance of this equipment and the musical sound from the external equipment are put together and outputted by the internal speaker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a built-in loudspeaker of an electronic musical instrument for mixing a performance signal generated by playing an electronic musical instrument and a mixed sound such as a performance signal or a voice signal generated by playing another musical instrument. Related to electronic musical instruments that can be played while monitoring on a computer.

[0002]

2. Description of the Related Art Conventionally, an electronic musical instrument having a built-in speaker can generate a tone signal generated in accordance with a performance of a player with a built-in speaker or can generate a tone signal with an external speaker via an external output interface. Also, depending on the electronic musical instrument, a musical tone signal from another electronic musical instrument captured via an external input interface and a musical tone signal generated in accordance with the performance are mixed internally and sounded by a built-in speaker, or generated by an external speaker. Can pronounce.

[0003]

At a concert hall or the like, tone signals generated by a plurality of live musical instruments including a plurality of electronic musical instruments and vocals are mixed by a mixer, and the resulting signals are mixed by a speaker directed to an audience seat. The sound was pronounced and the sound was produced by the monitor speakers provided for the individual players. At this time, an electronic musical instrument or the like having a built-in speaker can only select a setting that sounds only the performance sound of itself or does not sound at all with the built-in speaker. Therefore, at present, it is impossible to produce mixed sound, that is, sound produced from a monitor speaker by using a built-in speaker. The present invention has been made in view of the above points, and provides an electronic musical instrument including its own performance sound and capable of producing a performance sound mixed with another performance sound externally using a built-in speaker. It is an object.

[0004]

An electronic musical instrument according to the present invention provides a musical tone signal supplying means for supplying a first musical tone signal corresponding to a performance operation of an operator, and outputs the first musical tone signal to the outside. External output means configured to be capable of receiving a second tone signal supplied from outside, and the external output means configured to output the first tone signal. When the second tone signal is input from the external input means, only the second tone signal is output, and the first tone signal is output to the outside from the external output means. When the second tone signal is input from the external input means without the first tone signal, the first tone signal and the second tone signal are combined and output, and the first tone signal is converted to the external tone signal. Output from output means to outside When the second tone signal is not input from the external input means, a tone signal selecting / synthesizing means for outputting only the first tone signal, and a tone for outputting a tone signal from the tone signal selecting / synthesizing means. Output means. The tone signal supply means generates a first tone signal generated in response to a performance operation of the operator, that is, a key press and a key release operation.
Is supplied. The external output means can output the first tone signal to the outside. Further, the external input means can take in a second tone signal such as an external electronic musical instrument, a live musical instrument, or a voice sound into the electronic musical instrument. The tone signal selecting / synthesizing means selectively outputs or synthesizes the first tone signal and the second tone signal in accordance with the input / output state of the external output means and the external input means. That is, when the first tone signal is output from the external output means to the outside and the second tone signal is input from the external input means, only the second tone signal is output. Also, the first
When the second tone signal is input from the external input means without outputting the tone signal from the external output means to the outside, the first tone signal and the second tone signal are synthesized, and the synthesis is performed. Output a signal. If the first tone signal is not output from the external output means to the outside and the second tone signal is not input from the external input means, only the first tone signal is output. Therefore, the self-playing sound is output to the outside as a first tone signal, the self-playing sound is mixed with the playing sound and voice sound of another instrument by an external device, and the mixed sound is output as the second sound signal. Imported as a musical signal to the electronic musical instrument,
If the sound is output by the built-in speaker of the musical sound output means, the built-in speaker can be used as a monitor.

[0005]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a block diagram showing the overall configuration of the electronic musical instrument according to the present invention. CPU
Reference numeral 21 controls the overall operation based on various programs and various data in the ROM 22 and the RAM 23, and musical tone control information (MIDI data) fetched from an external storage device. In this embodiment, a floppy disk drive 24, a hard disk drive 25, a CD-ROM drive 26 and the like are described as examples of the external storage device, but other MO drives and PD drives may be used. Further, various information such as tone control information may be fetched from the server computer 29 or the like on the communication network 28 via the communication interface 27.
MIDI data or the like may be fetched from another MIDI device 2B or the like via the IDI interface 2A.
The CPU 21 supplies the MIDI data fetched from the external storage device or the MIDI data generated based on the key pressing operation of the keyboard 26 to the tone generator circuit 2J. Note that the tone generation process may be performed using a sound source circuit connected to the outside. The ROM 22 stores various programs (system programs, operation programs, and the like) and various data of the CPU 21 and has a read-only memory (R
OM). The RAM 23 temporarily stores various data generated when the CPU 21 executes a program, and includes a random access memory (RA).
M) predetermined address areas are respectively allocated and used as buffers, flags, tables, and the like. Also,
The operation program may be stored in an external storage device such as the hard disk device 25. In addition, the R
These operation programs are stored in an external storage device such as the hard disk drive 25 without storing the operation programs in the OM 22, and by reading them into the RAM 23, the same operation as when the operation programs are stored in the ROM 22 is performed. The processing may be performed by the CPU 21. By doing so, it is possible to easily add an operation program or upgrade the version. As one of the removable external storage media,
A CD-ROM or floppy disk may be used.
The CD-ROM or the floppy disk may store various data such as the above-described automatic performance data, chord progression data, musical sound waveform data, video data, and an arbitrary operation program. The operation program and various data stored in the CD-ROM or the floppy disk can be read out by the CD-ROM drive 26 or the floppy disk drive 24 and transferred to the hard disk device 25 for storage. As a result, new installation and version upgrade of the operation program of the electronic musical instrument can be easily performed.

The communication interface 27 is connected to a data and address bus 2M, and various communication networks 2 such as a LAN (local area network) and the Internet are connected via the communication interface 27.
8 may be connected, and data may be exchanged with another server computer 29. Thus, when the operation program and various data are not stored in the hard disk device 25, the operation program and various data can be downloaded from the server computer 29. In this case, an electronic musical instrument, which is a musical sound generation device serving as a client, transmits a command for requesting downloading of an operation program and various data to a server computer 29 via a communication interface 27 and a communication network 28. The server computer 29 transmits a predetermined operation program and data to the electronic musical instrument via the communication network 28 in response to the command. The electronic musical instrument receives these operation programs and data via the communication interface 27 and stores these programs and data in the hard disk drive 25. Thus, the download of the operation program and various data is completed. The automatic performance data is stored in the ROM 22, hard disk, CD-ROM, floppy disk, or the like. hard disk,
When stored in a CD-ROM, a floppy disk, or the like, the automatic performance data is read into the RAM 23, and then the automatic performance reproduction processing is performed. The automatic performance data includes a plurality of tracks, two of which are set as guide tracks. Automatic performance data
Key-on data, key-off data, duration data, and other data are stored in the order of performance. The key-on data is data indicating the start of tone generation, and includes data such as note number and velocity. The key-off data is data indicating the start of silencing of a musical tone, and includes data such as a note number. The duration data is data indicating generation timing of key-on data, key-off data, and other data, and is represented by an interval between two consecutive data. Other data are tones,
This is data on volume, effects, and the like.

The keyboard 2C is provided with a plurality of keys for selecting the pitch of a musical tone to be produced, has key switches corresponding to each key, and has a pressing force detecting device or the like as necessary. It has touch detection means. The keyboard 2C is a basic operator for music performance, and it goes without saying that other keyboard operators may be used. The key press detection circuit 2D includes a key switch circuit provided corresponding to each key of the keyboard 2C for designating the pitch of a musical tone to be generated. The key press detection circuit 2D detects a change in the key 2C from the key release state to the key press state, and outputs a key-on event.
A key-off event is output by detecting a change from a key-depressed state to a key-released state, and a note number indicating a key pitch of each key-on event and key-off event is output. In addition, the key press detection circuit 2D discriminates a key press operation speed, a key press force, and the like when a key is pressed, and outputs velocity data and after touch data. The switch detection circuit 2F is provided corresponding to each switch group on the panel switch 2E, and outputs a switch-on event according to the operation state of each switch group. The switch group includes various operators for selecting, setting, and controlling the tone color, volume, pitch, effect, and the like of the musical tone to be generated. There are many other switches, but they are omitted here. The display circuit 2H controls display contents of the display unit 2G.

The tone generator 2J can simultaneously generate tone signals on a plurality of channels, and inputs tone control information (MIDI data such as note-on, note-off, velocity, pitch, tone number, etc.) given from the CPU 21. And
A tone signal is generated based on these data. In the tone generator circuit 2J, a tone signal can be simultaneously generated on a plurality of channels by using one circuit in a time-division manner to form a plurality of tone channels, or one tone channel is constituted by one circuit. It may be of the type as described below. Also, any tone signal generation method in the tone generator circuit 2J may be used. For example, a memory reading method (waveform memory method) for sequentially reading out tone waveform sample value data stored in a waveform memory in accordance with address data that changes in accordance with a pitch of a musical tone to be generated, or a phase angle parameter An FM method for executing a predetermined frequency modulation operation as data to obtain tone waveform sample value data, or an AM method for executing a predetermined amplitude modulation operation using the address data as phase angle parameter data to obtain tone waveform sample value data, or the like. May be appropriately adopted. In addition to these methods, a physical model method that synthesizes a musical sound waveform by an algorithm that simulates the sounding principle of a natural musical instrument, a harmonic synthesis method that synthesizes a musical sound waveform by adding a plurality of harmonics to a fundamental wave, A formant synthesis method of synthesizing a musical tone waveform using a formant waveform having a specific spectral distribution, an analog synthesizer method using VCO, VCF, and VCA may be employed. In addition, the tone generator circuit is not limited to the one that uses the dedicated hardware, and the tone generator circuit may be configured using a DSP and a microprogram. Alternatively, the tone generator circuit may be configured using a CPU and a software program. It may be. The timer 2U generates a tempo clock pulse for counting a time interval and setting a tempo of automatic accompaniment. The frequency of the tempo clock pulse is adjusted by a tempo switch (not shown) in the panel switch 2E. The tempo clock pulse from the timer is given to the CPU 21 as an interrupt command, and the CPU 21 executes various processes by an interrupt process. The effect imparting circuit 2K imparts various effects to the tone signal from the tone generator 2J, and outputs the tone signal to which the effect has been imparted to the digital-analog converter (DAC) 2L. The digital-analog converter 2L converts the analog tone signal into an external output interface 2S and a mixer 2S.
Output to N. The external output interface 2S outputs analog musical sound signals to an external device (external mixer 31 in the figure).
Output to As will be described later, when a tone signal is output from the external output interface 2S to an external device, the tone signal is not output from the digital-analog converter 2L to the mixer 2N. Digital to analog converter 2L to mixer 2N
When the tone signal is output to the external device, the tone signal is not output from the external output interface 2S to the external device. The external mixer 31
In addition to the electronic musical instrument according to this embodiment, an analog musical tone signal is input from the other performance devices 32 to 34, and a vocal sound (analog musical tone signal) is input from the microphone 35, and these are appropriately mixed and amplified. The sound is generated via a sound system composed of a speaker 36 and speakers 37 and 38. The analog tone signal mixed by the external mixer 31 is taken into the electronic musical instrument via the external input interface 2T. The mixer 2N mixes the analog musical tone signal from the digital-analog converter 2L with the analog musical tone signal captured via the external input interface 2T, and outputs it to the equalizer 2P. As described above, when the analog tone signal from the digital-analog converter 2L is output to the outside via the external output interface 2S, the mixer 2N outputs only the analog tone signal from the external mixer 31 to the equalizer 2P. I do. The tone signal whose frequency characteristic has been processed by the equalizer 2P is generated via the amplifier 2Q and the built-in speaker 2R.

FIG. 1 is a diagram showing a detailed configuration of the external output interface 2S, external input interface 2T, mixer 2N and equalizer 2P of FIG. FIG.
(A) shows a state in which nothing is connected to the external output interface 2S and the external input interface 2T, that is, a case where a tone signal generated by the electronic musical instrument is directly output from the built-in speaker 2R. FIG. 1B shows a case where a musical tone signal generated by an electronic musical instrument and a sound signal from another performance device 32 to 34 or a microphone 35 are mixed by an external mixer 31 and are generated by a built-in speaker of the electronic musical instrument. Is shown. The external output interface 2S is configured by a loop send (LOOPSEND) terminal. In the loop send terminal, the first terminal 2S1 and the second terminal 2S2 are always in contact with each other via the contact terminal 2S4. That is, the analog tone signal from the digital-analog converter 2L is always supplied to the mixer 2N. In this state, when the microphone jack 3A of the external mixer 31 is inserted via the ground terminal 2S5,
The contact terminal 2S4 is changed to the second terminal 2S2 by the insulator 2S3.
Is in a non-contact state with respect to the first terminal 2S1 and the second terminal 2S1.
The terminal 2S2 is disconnected. Therefore, digital
The analog tone signal from the analog converter 2L is supplied only to the external mixer 31 via the external interface 2S. On the other hand, external input interface 2
T is constituted by an auxiliary input terminal (AUX IN) or a loop return terminal (LOOP RETURN). Therefore, when the output jack 3B of the external device (external mixer 31) is inserted through the ground terminal 2T1, the output terminal T is accordingly. A signal from an external device is taken into the mixer 2N. The mixer 2N includes a trim resistor 2N1 for adjusting the level of an input signal from the external input interface 2T, and a master volume resistor 2N2 for adjusting the volume level of the built-in speaker 2R. The analog tone signal whose volume has been adjusted by the master volume resistor 2N2 is taken into the equalizer 2P. The equalizer 2P includes a five-band equalizer 2P1 and a two-band equalizer 2P2. The tone signal whose frequency characteristic has been adjusted by the five-band equalizer 2P1 is output to the amplifier 2Q, and the tone signal whose frequency characteristic has been adjusted by the two-band equalizer 2P2. Is a spare output terminal (A
UX OUT). Note that the difference between the number of bands of the equalizer 2P1 and the number of bands of the equalizer 2P2 is that it is difficult to obtain sufficient sound quality with the built-in speaker 2R. Generally, it is considered that the performance of the external device is better than that of the built-in device, so two bands are sufficient. According to the above-described embodiment, the tone signal generated by the electronic musical instrument is output to the external device using the external output interface 2S, and is mixed with the sound of another musical instrument by the external device, and various effects are provided. Then, by taking in via the external input interface 2T, the built-in speaker can be used as if it were a monitor speaker. Also, without using the external output interface 2S, the internal mixer 2N mixes a tone signal from an external device taken in from the external input interface 2T, for example, a reproduction sound of a CD, thereby allowing the user to perform his / her own performance with the built-in speaker. The synthesized performance sound can be synthesized with a musical sound from an external device. Furthermore, external output interface 2S
Also, by using the auxiliary output terminal (AUX OUT) without using the external input interface 2T, a tone signal can be output to an external device (external mixer, amplifier, glyco, or other device) for performance, and the built-in speaker From 2R, you can hear only your own performance.
In the above-described embodiment, a case has been described in which the external output interface 2S is configured with a loop send (LOOP SEND) terminal and a switch insertion jack is inserted into the external output interface 2S for switching. However, the present invention is not limited to this. Needless to say, this may be done.

According to the present invention, it is an object of the present invention to provide an automatic performance apparatus which can produce a performance sound including its own performance sound and mixed with a performance sound of another musical instrument through a built-in speaker. .

[Brief description of the drawings]

FIG. 1 is a diagram showing a detailed configuration of an external output interface, an external input interface, a mixer, and an equalizer in FIG.

FIG. 2 is a block diagram showing the overall configuration of the electronic musical instrument according to the present invention.

[Explanation of symbols]

21 CPU, 22 ROM, 23 RAM, 24 floppy disk drive, 25 hard disk drive, 26 CD-ROM, 27 communication interface, 28 communication network, 29 server computer, 2A MIDI interface, 2B ... other MI
DI device, 2C keyboard, 2D key press detection circuit, 2E panel switch, 2F switch detection circuit, 2G display unit, 2H display circuit, 2J sound source circuit, 2K effect effect circuit, 2L digital Analog converter, 2M data and address bus, 2N mixer, 2P equalizer, 2Q amplifier, 2R internal speaker, 2S external output interface, 2T external input interface, 2U timer, 31 external mixer, 32 ~ 34 ...
Other performance equipment, 35 ... microphone, 36 ... amplifier, 37, 3
8 External speaker

Claims (3)

[Claims] 1. A tone signal supply unit for supplying a first tone signal corresponding to a performance operation of an operator, and an external output unit configured to be able to output the first tone signal to the outside. External input means configured to be able to input a second tone signal supplied from the outside; and outputting the first tone signal to the outside from the external output means, the second tone signal Is input from the external input means, only the second tone signal is output, and the first
When the second tone signal is input from the external input means without outputting the second tone signal from the external output means to the outside, the first tone signal and the second tone signal are synthesized. If the second tone signal is not input from the external input means without outputting the first tone signal from the external output means to the outside, the first
An electronic musical instrument comprising: a tone signal selecting / synthesizing means for outputting only the tone signal of the above; and a tone output means for outputting a tone signal from the tone signal selecting / synthesizing means. 2. The electronic musical instrument according to claim 1, wherein said tone signal output means is a speaker system for generating a tone signal from said tone signal selection / synthesis means. 3. The electronic musical instrument according to claim 1, wherein said tone signal output means is a preliminary output terminal for outputting a tone signal from said tone signal selection / synthesis means to the outside.