JPH0635396A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To provide the electronic musical instrument which enables a user to make diversified performance exercises, etc., by using an inexpensive and large-capacity memory medium. CONSTITUTION:A tape 15 of a cassette tape is divided to two channels; R, L. Voice information is recorded in the L channel and control information in the R channel. The voice information for demonstration and the voice information for accompaniment are recorded in association with the control information of the R channel as the voice information of the L channel. The voice information of the L channel is reproduced in accordance with the control information 1 to 4 of the R channel and the timbres of the musical tones played by the keyboard of the electronic musical instrument are controlled in accordance with the timbre information recorded as the control information of the L channel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument, and more particularly, to an electronic musical instrument which can be used for a variety of musical performance exercises using an inexpensive and large-capacity storage medium.

[0002]

2. Description of the Related Art There are various conventional performance practicing apparatuses, for example, an automatic performance of a bar having a performance error and a practice of repeating the bar, which serves as a model. There is a method in which performance information of one part is removed from the performance information of a performance music composed of a plurality of parts, the performance is automatically performed, and the part of the removed performance information part is practiced for performance.

In such a conventional performance practicing apparatus, performance information of a performance music piece as a model is stored in a ROM (Read Only).
Memory), RAM (Random Access Memory), etc. are stored in advance, and as described above, a predetermined part of a song can be automatically played repeatedly, or a predetermined part can be removed and automatically played. It is designed to let you practice playing according to.

[0004]

However, in such a conventional performance practicing apparatus, the performance information of a performance music piece serving as a model is stored in advance in a memory such as a ROM or a RAM, and a predetermined music piece is stored. Since it is designed to automatically play a part repeatedly or to remove a predetermined part and perform an automatic performance so that the player can practice playing in accordance with this automatic performance, it is possible to meet various aspects of performance practice required by a performance practitioner. In order to respond to these various aspects of playing practice,
There is a problem that a large-capacity ROM or RAM is required and the cost becomes high.

Therefore, an object of the present invention is to provide an electronic musical instrument which is inexpensive and which enables a practitioner to practice various performances.

[0006]

According to the present invention, the above object has a plurality of channels, at least one of which is
One channel corresponds to musical sound information, and at least one channel thereof reproduces a recording medium on which control information is recorded, an externally operable performance operator, and operation of the performance operator. By providing a musical tone generating means for generating a musical tone based on the musical tone information inputted by, and a controlling means for controlling the musical tone generation of the musical tone generating means based on the control information reproduced by the reproducing means,
Has achieved.

In this case, for example, as described in claim 2, by further comprising reproduction control means for controlling reproduction of the musical sound information by the reproduction means based on the control information reproduced by the reproduction means, Has achieved.

Further, for example, as described in claim 3, the recording medium is divided into a plurality of channels, and musical tone information is recorded on at least one of the channels and the control information is recorded on at least one of the channels. This is achieved by further providing a recording means for doing so.

[0009]

According to the above construction, the musical sound produced by the performance operation by the performance operator can be controlled based on the control information stored in at least one channel of the recording medium, and based on this control information. Since it is possible to control the reproduction of the musical tone information stored in at least one channel of the recording medium, it is possible to use a compact cassette tape, DAT (Digital Audio Tape), MD (Mini Disc) or the like as a storage medium at a low cost and in a large size. A storage medium having a capacity can be used, and the storage of musical tone information and control information can be performed in various ways in this storage medium. As a result, when the electronic musical instrument is used as a performance practice device, it is possible to inexpensively provide an electronic musical instrument that can respond to a variety of performance practice modes of a performance practitioner, and expand the availability of the electronic musical instrument. be able to.

Further, since the recording medium can be divided into a plurality of channels and the musical tone information can be recorded in at least one of the channels and the control information can be recorded in the at least one of the channels, the recording on the recording medium can be performed. By making appropriate changes, an instructor who gives performance guidance to a performance practitioner can record it on a recording medium for instruction so that the performance practice intended by the instructor can be easily performed, and an electronic musical instrument can be performed. Can be appropriately expanded to the intended use purpose of the user.

[0011]

[Examples] Specific examples will be described below.

1 to 7 are views showing an embodiment of an electronic musical instrument of the present invention.

FIG. 1 is an electronic musical instrument 1 having a performance practice function.
FIG. 3 is an external view of the electronic musical instrument 1. A case body 2 of the electronic musical instrument 1 is provided with a plurality of (for example, 36 keys) keyboards 3. Various switches such as a power switch 4, a volume switch 5, a tone color setting switch 6, a mode selection switch 7, a teacher switch (T) 8, a student switch (S) 9 and a cassette operation button 10 are provided on the upper surface of the case body 2. Left and right speakers 11, 12 are provided, and a cassette drive unit 13 is attached.

The power switch 4 is a switch for turning on / off the main power of the electronic musical instrument 1 itself, and the volume switch 5 is a switch for setting the volume of sound emitted from the speakers 11 and 12. Tone setting switch 6
The mode selection switch 7 is a switch for setting the tone color of the generated musical sound, and the mode selection switch 7 is a switch for selecting the operation mode of the electronic musical instrument 1. There are lesson mode and play mode as operation modes.
This is a mode that enables automatic performance of a piece of music and practice practice in accordance with the automatic performance. The play mode is a mode for performing a normal manual performance using the keyboard 3, and does not perform an automatic performance. The operation mode is not limited to this, and for example, an automatic performance mode in which only automatic performance is performed may be provided.

The teacher switch (T) 8 and the student switch (S) 9 are provided in the cassette drive unit 13 in the lesson mode as will be described later.
The playback channel of the cassette tape set in is specified.

As shown in FIG. 2, the cassette operation button 10 includes a stop button 21, a record button 22, a reproduction button 23, a fast forward button 24, a rewind button 25, and a temporary stop, as in a normal cassette tape reproduction / recording apparatus. Button 2
6, the cassette drive unit 13 is operated by operating each of the cassette operation buttons 10.

As the cassette drive unit 13, a cassette drive for performing normal recording / reproducing is used, and the cassette drive unit 13 has an ordinary compact cassette tape (hereinafter referred to as "cassette tape") as shown in FIG. ) 14 is set. The cassette tape 14 is a four-track cassette tape having two tracks for each running direction of the tape 15.
The tape 15 has an L channel track and an R channel track for each running direction of the tape 15. In this embodiment, as shown in FIG. 4, the cassette tape 14 stores audio information (audio signals) in its L channel separately for demonstration and accompaniment, and in its R channel, control information. That is, the control information 1 to the control information 4 and the tone color information (tone color signal) are stored.

Referring again to FIG. 1, the speakers 11 and 12 are
Reproduces the cassette tape 14 with the electronic musical instrument 1 and emits tones to the outside the musical tones automatically played and the musical tones played using the keyboard 3.

FIG. 5 is a circuit block diagram of the electronic musical instrument 1. The electronic musical instrument 1 includes a control section 31, a ROM 32, and a keyboard section 3.
3, switch section 34, sound source section 35, D / A converter 36,
Mixer 37, amplifier 38, speaker section 39, microphone 4
0, input circuit 41, control information conversion unit 42, control information detection unit 43, recording amplifier 44, reproduction amplifier 45, R side (right side) head 46, L side (left side) head 47, recording amplifier 48, reproduction amplifier 49, and The tape drive unit 50 and the like are provided.

The ROM 32 stores various programs and data necessary for controlling the electronic musical instrument 1, particularly a program as a performance practice device.

The control unit 31 includes a CPU (Central Processi).
ng Unit), a RAM, etc., and controls each part of the electronic musical instrument 1 while using the RAM as a work memory in accordance with a program in the ROM 32 to perform processing as an electronic musical instrument, particularly processing as a performance practice device. Keyboard part 33
Is a general term for the key press detection circuit for detecting which key of the keyboard 3 and the key 3 is pressed, and the switch unit 3
Reference numeral 4 is a general term for the various switches 4 to 9 and the cassette operation button 10.

The tone generator section 35 generates a tone signal based on the tone data transferred from the control section 35, and outputs D /
Output to the A converter 36. The D / A converter 36 converts the input digital musical tone signal into an analog musical tone signal and outputs it to the mixer 37. The audio information reproduced by the L head 47 is further input to the mixer 37 via the reproducing amplifier 49, and the mixer 37 inputs the musical tone signal input from the D / A converter 36 and the musical tone signal input from the reproducing amplifier 49. Are mixed and output to the amplifier 38. The amplifier 38 amplifies the analog tone signal input from the mixer 37 and outputs it to the speaker unit 39. The speaker unit 39 is a general term for the speakers 11 and 12.
The input musical tone signal is emitted as a musical tone.

The microphone 40 converts a voice such as a human voice or a musical instrument sound, particularly a performance sound of a model performance, into an electric signal and outputs the electric signal to the input circuit 41. The input circuit 41 outputs the electric signal input from the microphone 40 to the recording amplifier 48 as a musical tone signal. The musical tone signal input to the recording amplifier 48 is recorded on the L channel track of the cassette tape 14 as audio information by the L head 47.
The audio information recorded in (1) is reproduced by the L head 47 and output to the mixer 37 via the reproduction amplifier 49.

Further, the musical tone signal output from the D / A converter 36 is input to the recording amplifier 48, and the recording amplifier 4
8 amplifies the tone signal input from the D / A converter 36 and outputs it to the L head 47. Therefore, not only the tone signal input from the microphone 40 but also the tone signal input from the keyboard 33 can be recorded in the L channel of the cassette tape 14.

It should be noted that the LINE IN terminal is connected to the input circuit 41 so that a musical tone signal played by another electronic musical instrument or the like is input and this audio information is recorded as audio information on the L channel of the cassette tape 14. May be.

The control section 31 also outputs control information to the control information conversion section 42, and the control information conversion section 42 controls the control section 3.
The control information input from 1 is converted into control information and output to the recording amplifier 44. The recording amplifier 44 outputs this control information to the R head 46, and the R head 46 writes the input control information on the track for the R channel of the cassette tape 14. The control information written on the cassette tape 14 is reproduced by the R head 46 and reproduced by the reproduction amplifier 45.
Is output to the control information detection unit 43 via.

The control information detector 43 detects which control information this control information is, and outputs it to the controller 31. Based on this control information, the control unit 31 determines the tape drive unit 5
Drive control of 0, reproduction of musical tone information from the L head 47, and musical tone generation control processing of the musical tone generated by the keyboard 33 on the basis of the timbre of the timbre information recorded in the R channel, which will be described later. .

The tape drive unit 50 is controlled under the control of the control unit 31, and controls the drive of the cassette drive unit 13, in particular, feeds and rewinds the cassette tape 14 and drives the heads 46 and 47.

Next, the operation will be described.

The electronic musical instrument 1 can select a lesson mode and a play mode by operating the mode selection switch 7. In the lesson mode, a cassette tape 14 for a lesson used for practicing playing is created. A tape creation mode and a performance practice mode using the lesson cassette tape 14 can be selected.

First, the tape production mode will be described.

To create a tape, the lesson mode is selected by operating the mode selection switch 7.
When the record button 22 of the cassette operation button 10 is turned on, the tape production process is started.

In the tape making process, as shown in FIG.
The control unit 31 outputs the control information 1 to the control information conversion unit 42 and causes the R head 46 to slightly move the cassette tape 14 to the R channel of the cassette tape 14 as shown in FIG. Record (step S1),
Waiting for the teacher switch (T) 8 to be turned on (step S2), the cassette tape 14 is driven to start recording audio information in the L channel (step S2).
3). As the voice information, as described above, the microphone 4 is used.
It may be voice information input from 0, or the keyboard 33
May be voice information input from
It may be audio information input from the E IN terminal. As shown in FIG. 4, this voice information is transmitted by the L head 47.
It records on the L channel of the cassette tape 14. The audio information recorded on the L channel following this control information 1 is
It is used for demonstration, that is, the voice information of the performance as a model for performance practice, and all the voice information and the like by the performance of professionals and instructors are recorded.

After that, when it is detected that the teacher switch (T) 8 is turned on (step S4), the cassette tape 14 is stopped and recording on the L channel is finished (step S5), as shown in FIG. , Control information 2 is recorded in the R channel (step S6). After the control information 2, the control information 3 is recorded in the R channel (step S7), waits for the student switch (S) 9 to be turned on (step S8), and the audio information is recorded in the L channel. Start. This voice information is for automatically performing as an accompaniment when performing the performance practice, and the voice information and the like from which the voice information of the part on which the performance practice person performs the practice practice is removed are recorded.

After that, the student switch (S) 9
When it is detected that the sound information has been input (step S10), it is determined that the accompaniment audio information has ended, recording of the audio information to the L channel ends (step S11), and the control information 4 is recorded to the R channel. (Step S12).

When the control information 4 is recorded, the rewinding of the cassette tape 14 is started (step S13), and when the control information 3 is detected from the R channel (step S14), the rewinding of the cassette tape 14 is ended (step S1).
5). When the student switch (S) 9 is turned on (step S16), the tone color setting switch 6 is scanned,
As shown in FIG. 4, the tone color information according to the setting of the tone color setting switch 6 is recorded in the R channel following the control information 3 (step S17). The tone color of the performance by the performance practitioner during reproduction is set by this tone color information.

Next, the reproduction processing of the L channel is started (step S18), the tone color setting switch 6 is scanned,
It is checked whether or not the setting of the tone color setting switch 6 has been changed (step S19). When a change in the tone color setting switch 6 is detected, the changed tone color information is recorded at the R channel position of the cassette tape 14 at the time of the detection (step S20), and whether the student switch (S) 9 is turned on. Check (step S21). When the student switch (S) 9 is not turned on, it is checked whether or not the control information 4 is detected from the R channel (step S22). When the control information 4 is not detected, the accompaniment voice information is not finished. After making a determination, the procedure returns to step S19, and similarly, the change of the tone color setting switch 6 is checked.

When the change of the tone color setting switch 6 is not detected in step S19, the process proceeds to step S21, it is checked whether or not the student switch (S) 9 is turned on, and if the student switch (S) 9 is turned on. , It is determined that the tone color setting has not been changed thereafter, and the reproduction of the L channel is ended (step S2).
3). Further, even if the student switch (S) 9 is not turned on in step S21, if the control information 4 is detected from the R channel, it is determined that the accompaniment voice information is ended, and the reproduction of the L channel is ended (step S).
23).

By the above processing, recording of voice information for performance practice of one piece on the cassette tape 14 and setting of tone color information when performing performance practice are completed. By repeating the above process in sequence, it is possible to record the voice information for performance practice of a plurality of songs on the cassette tape 14, and by changing the tone color information set next to the control information 3, various tone colors can be obtained. Audio information corresponding to the information can be recorded. Further, by recording as the accompaniment audio information, the audio information in which the part to be removed is changed, it is possible to record the audio information for performance practice of different parts. As a result, it is possible to create the cassette tape 14 for performance practice corresponding to various performance practice modes of the performance practice person.

Next, the performance practice mode will be described.

To practice playing, the cassette tape 14 created as described above is set in the cassette drive unit 13, the lesson mode is selected by operating the mode selection switch 7, and the play button 23 of the cassette operating button 10 is selected. The performance practice mode process is started by inputting.

In the performance practice mode, as shown in FIG.
First, the cassette tape 14 is fast forwarded (step P1), when the control information 1 is detected from the R channel (step P2), the fast forward of the cassette tape 14 is ended (step P3), and the teacher switch (T) 8 is turned on. It is checked (step P4). When the teacher switch (T) 8 is turned on, the reproduction of the audio information of the L channel is started (step P5), and while the reproduction of this audio information is performed, it is checked whether or not the control information 2 is detected from the R channel. (Step P
6). By reproducing this voice information, the performance practitioner can first hear the performance of a professional or the like as a model from the speakers 11 and 12.

When the control information 2 is detected, it is judged that it is the end of the audio information for demonstration, the reproduction of the L channel is ended (step P7), the fast forward of the tape is started (step P8), and the R information is read. It is checked whether the control information 3 is detected from the channel (step P9). When the control information 3 is detected, the control section 31 waits until the next timbre information is detected (step P10), and the control section 31 sets the timbre according to the detected timbre information (step P11).

When the tone color setting is completed, the student switch (S) 9 is closed (step P12),
The reproduction of the accompaniment voice information of the L channel is started (step P13). The reproduction of the accompaniment voice information is performed by the L head 47 and output to the mixer 37 via the reproduction amplifier 49, as described above. Sound is emitted from the speaker 39 from the mixer 37 via the amplifier 38.

Automatic performance of this accompaniment voice information (playback sound)
In response to this, the performance practitioner uses the keyboard section 33 to perform the performance practice. The control section 31 outputs the musical tone information corresponding to the key operation of the keyboard section 33 to the tone generator section 35, and the tone generator section 35.
Outputs a tone signal corresponding to the tone information and causes the speaker unit 39 to emit a sound (step P14). And
In this sound generation process, the control unit 31 determines in step P11.
The tone signal corresponding to the tone color set in
Output to. Therefore, the musical sound produced by the performance operation of the keyboard portion 33 can be generated by the timbre based on the timbre information recorded in advance in the R channel of the cassette tape 14, and various performance practice can be performed. Then, the tone generator 35 outputs a musical tone corresponding to the musical tone information generated by the performance of the keyboard 33, and the musical tone and the musical tone reproduced from the cassette tape 14 are mixed by the mixer 37 and emitted from the speaker 39. .

The control section 31 checks whether or not timbre information is recorded in the R channel while performing the reproduction of the L channel and the sound generation processing by the key depression information (step P1).
5) As shown in FIG. 4, when the tone color information is recorded midway, the tone color is set based on the tone color information (step P16). Therefore, the cassette tape 14
According to the tone color information of the R channel, the tone color of the musical tone by the performance operation of the keyboard 33 can be changed appropriately, and various performance practice can be performed.

Next, it is checked whether or not the control information 4 is detected from the R channel (step P17). When the control information 4 is not detected, it is judged that the accompaniment voice information is not reproduced to the end, and the step is performed. Returning to P14, the tone generation processing based on the key depression information and the L channel reproduction processing are similarly continued. In step P15, when the timbre information is not detected in the middle, it is checked whether the control information 4 is detected from the R channel without changing the timbre setting.

When the control information 4 is detected in step P17, the reproduction of the L channel is ended, and the performance practice process is ended (step P18).

As described above, the musical sound produced by the performance operation by the keyboard 3 as the performance operator can be controlled based on the control information stored in the R channel of the cassette tape 14 as the recording medium, and Since the reproduction of the audio information stored in the L channel of the cassette tape 14 can be controlled based on this control information,
An inexpensive and large-capacity cassette tape 14 can be used as a storage medium, and the storage of audio information and control information on the cassette tape 14 can be performed in various ways. As a result, it is possible to inexpensively provide the electronic musical instrument 1 which can respond to various aspects of the musical performance practitioner, and it is possible to expand the usability of the electronic musical instrument 1.

Since it is possible to freely record the audio information and the control information on the cassette tape 14, by appropriately changing the recording on the cassette tape 14,
A performance practitioner practicing performances using the electronic musical instrument 1
It is possible to easily perform the performance practice intended by the user, and it is possible to appropriately expand the electronic musical instrument 1 to the intended purpose of the user.

In the above embodiment, the tone color of the musical tone key-operated on the keyboard 3 is controlled by the tone color information recorded on the R channel. However, the tone color is not limited to the tone color, and various tone colors can be used. Control can be performed.

Further, although the cassette tape 14 is used as the recording medium in the above embodiment, the present invention is not limited to this, and it is applicable as long as it can be divided into a plurality of channels for recording and has a large capacity. Can be, for example, D
AT (Digital Audio Tape), MD (Mini Disc), etc. can be used.

[0053]

According to the present invention, the musical sound produced by the performance operation by the performance operator can be controlled based on the control information stored in at least one channel of the recording medium. Based on this, it is possible to control the reproduction of the musical sound information stored in at least one channel of the recording medium, so that the storage medium such as a compact cassette tape, a DAT (Digital Audio Tape), or an MD (Mini Disc) is inexpensive. It is possible to use a large-capacity storage medium, and to store the tone information and the control information in this storage medium in various ways.
As a result, when the electronic musical instrument is used as a performance practice device, it is possible to inexpensively provide an electronic musical instrument that can respond to a variety of performance practice modes of a performance practitioner, and expand the availability of the electronic musical instrument. be able to.

Further, since the recording medium can be divided into a plurality of channels and the musical tone information and the control information can be freely recorded in at least one of the channels, the recording medium can be freely recorded in the recording medium. By appropriately changing the recording, a performance practitioner who uses an electronic musical instrument to practice playing can easily perform the musical performance practice intended by him, and the electronic musical instrument can be used for the purpose intended by the user. It can be expanded appropriately.

[Brief description of drawings]

FIG. 1 is an external view of an electronic musical instrument according to the present invention.

FIG. 2 is a detailed view of the cassette operation button of FIG.

FIG. 3 is a front view of the cassette tape in which the tape is emphasized and drawn.

FIG. 4 is an explanatory diagram of a recording method of musical tone information and control information on a cassette tape.

FIG. 5 is a circuit block diagram of an electronic musical instrument.

FIG. 6 is a flowchart showing tape creation processing.

FIG. 7 is a flowchart showing performance practice processing.

[Explanation of symbols]

 1 electronic musical instrument 2 case body 3 keyboard 4 power switch 5 volume switch 6 tone color setting switch 7 mode selection switch 8 teacher switch (T) 9 student switch (S) 10 cassette operation button 11, 12 speaker 13 cassette drive unit 31 control unit 32 ROM 33 keyboard section 34 switch section 35 sound source section 36 D / A converter 37 mixer 38 amplifier 40 microphone 41 input circuit 42 control information conversion section 43 control information detection section 44, 48 recording amplifier 45, 49 playback amplifier 46 R head 47 L head 50 tape drive

Claims (3)

[Claims] 1. A reproducing means for reproducing a recording medium having a plurality of channels, at least one of which has musical tone information and at least one of which has control information recorded thereon, and an external operation. A possible musical performance operator, a musical tone generating means for generating a musical tone based on musical tone information input corresponding to the operation of the musical performance operator, and a musical tone generating means for the musical tone generating means based on the control information reproduced by the reproducing means. An electronic musical instrument comprising: a control unit for controlling the generation of a musical sound. 2. The electronic musical instrument according to claim 1, further comprising reproduction control means for controlling reproduction of the musical sound information by the reproduction means based on the control information reproduced by the reproduction means. 3. The recording medium is divided into a plurality of channels,
Music information on at least one of the channels,
3. The electronic musical instrument according to claim 1, further comprising recording means for recording the control information on at least one of the channels.