JPH05150771A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To provide the electronic musical instrument which can easily be played by providing a controller which generates an audio signal corresponding to the detection data of a depression sensor fitted on a fingertip. CONSTITUTION:Touch switches 1a-1e, and 2a-2e are stuck on the tips of left and right gloves 1 and 2. A player wears the gloves 1 and 2 on the left and right hands and presses the top of a desk to play desired music. The kind of the pressed finger and the pressing time are sent to a microcomputer 4 through a reception part 3, and data for sound source generation are generated there. The data are sent to a sound source part 5 and inputted to the base of the transistor of a VCA 6 as an input signal corresponding to the frequency of the sound corresponding to the finger tip and the pressing time. The output of the VCA 6 is amplified by a power amplifier 8 and outputted as a musical sound from a speaker 11.

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 in which an input portion for playing a musical instrument is not bulky.

[0002]

2. Description of the Related Art Conventionally, a general electronic musical instrument is an electronic sound source unit for generating sounds of various musical instruments by an external portion imitating the external shape of a musical instrument such as a guitar, a drum, a wind instrument, an input unit such as a keyboard, and an electronic circuit. And the like, and an audio signal is generated from the electronic sound source section by operating the input section, and after power amplification, is output from the speaker. In this case, the strength of the sound is the amount of operation on the input unit (for example,
If it is a keyboard, it was changed according to the pressing force).

[0003]

However, the above-mentioned conventional electronic musical instruments have to be large in outer shape, so that they cannot enjoy the performance easily.

Therefore, the present invention has been made in order to solve the above problems, and an object of the present invention is to provide an electronic musical instrument which is compact in size and can be easily played.

[0005]

In order to solve the above-mentioned problems, the present invention provides a glove having a pressure sensor attached to a fingertip,
An audio signal generator for generating an audio signal;
And a control device for controlling the audio signal generating device to generate an audio signal corresponding to the detection data detected by the pressure sensor attached to the fingertip.

[0006]

According to the present invention, when the performer wears the glove on his / her hand and, for example, presses his / her finger on the desk to turn on / off the pressure sensor of each finger, a sound (sound frequency) corresponding to each finger is produced.
Is specified, and the on-time and off-time are determined. In this way, by pressing each finger, for example, Dodore Remi Millet ~ (Hinomaru), "sound" and "sound length" are designated. The control device causes the audio signal generation device to generate an audio signal in accordance with the "sound designation" and the "sound length designation".

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. First Embodiment As shown in FIG. 1, a touch switch 1a is attached to the tip of the left hand glove 1 on the palm side of the thumb, and the touch switches 1b, 1c, 1
d and 1e are attached. Similarly, a touch switch 2a is attached to the tip of the right hand glove 2 on the palm side of the thumb, and in the same manner, touch switches 2b, 2c, 2d, and 2e are attached to the respective tips in the order of fingers. A sound (sound frequency) is assigned to each of the touch switches, for example, C-like Doremi.

The touch switches 1a-1e, 2a-
2e are respectively connected to the receiving unit 3 to detect which touch switch is turned on. The detected data is sent to the microcomputer 4. The microcomputer 4 includes a sound identification unit 4a that identifies a "sound (sound frequency)" that corresponds to the touch switch assigned to a finger, and a specific sound that corresponds to the time when the touch switch is on / off. And an on / off time designating section 4b for designating "output time". The output side of the microcomputer 4 is
The specific sound and the sound corresponding to the output time are connected to the sound source unit 5 which outputs the sound corresponding to the instruction from the microcomputer 4. The sound source section 5 is capable of generating sounds of various musical instruments such as piano sounds and guitar sounds. The output side of the sound source unit 5 has a VCA described below.
It is connected to a power amplifier 8 via a (voltage control variable gain circuit) 6. The output side of the power amplifier 8 is connected to the movable terminal 9c of the changeover switch 9, the first fixed terminal 9a of the changeover switch 9 is connected to the speaker 11, and the second fixed terminal 9b of the changeover switch 9 is a terminal for external connection. Connected to 10.

Here, the circuit configuration of the VCA 6 is shown in FIG. As shown in FIG. 2, a differential amplifier is constituted by a pair of transistors Q ₁ and Q ₂ whose emitters are commonly connected and a load resistor R _1, and a transistor Q ₃ is provided at a common connection point of the emitters of the transistors Q ₁ and Q _2. And a current source consisting of a resistor R ₂ is connected. This current source supplies a current corresponding to the input signal e _i from the sound source section 5 to each emitter of the transistors Q ₁ and Q ₂ . Transistors Q ₁ and Q
A control voltage determined according to the resistance value of the strain sensor (variable resistor) 6a described below and the voltage of the power supply V is applied between the _two bases. By changing the control voltage according to the change of the resistance value, the transistor Q
It is possible to control the level of the output (audio signal) derived from the _second collector.

The strain sensor 6a is connected to one end of a tube 7a of a mouthpiece 7 (see FIG. 1) which is detachably attached, and the strain sensor 6a is connected to the strain sensor 6a according to the strength of the breath blown from the mouthpiece 7. The resistance value changes. The pipe 7a is provided with a branch pipe 7b so that the pressure applied to the pipe 7a can be adjusted.

Next, the operation of the first embodiment will be described. -When using gloves only It is assumed that the power supply (not shown) is turned on. In this state, the player fits the gloves 1 and 2 on the left and right hands, and presses the upper surface of the desk, for example, to play a desired piece of music. Then,
The type of the pressed finger and the pressing time are transmitted to the microcomputer 4 via the receiving unit 3, the microcomputer 4 generates data corresponding to the type of the finger and the pressing time, and this data is sent to the sound source unit 5. Sent. The sound source unit 5 outputs an input signal e _i (see FIG. 2) in accordance with the “sound (sound frequency)” and the “time during which the button is pressed” according to the data, and the input signal e _i is the VCA 6 Transistor Q ₃
Entered in the base of. In this case, since the mouthpiece 7 is not used and no breath is blown, the resistance value of the strain sensor 6a shown in FIG. 2 becomes a constant value, and the output corresponding to this constant value is sent to the power amplifier 8. The power amplifier 8 performs power amplification, and the played music is output from the speaker 11 as a sound.

When the glove and the mouthpiece are used together, the mouthpiece 7 is attached to the VCA 6. In this state, the player plays the desired song with the gloves 1 and 2 as described above, and at the same time, blows his / her breath through the mouthpiece 7 to play the desired song, for example, by blowing a whistle. Then, similarly to the above, the tone generator section 5 applies an output corresponding to the designated sound and the pressed time to the base of the transistor Q ₃ of the VCA 6 as the input signal e _i . On the other hand, when the breath is blown from the mouthpiece 7, the resistance value of the strain sensor 6a changes, so that the output signal e _{o of the} VCA 6 changes according to the strength of the blown breath. Since the signal including these "sound", "time", and "sound intensity" is input to the power amplifier 8, the power amplifier 8
From the above, an audio signal including the "sound", the "time", and the "strength of the sound" is supplied to the speaker 11, and the speaker 11 produces a sound including the same strength as when playing with a normal musical instrument.
Is output from.

Second Embodiment FIGS. 3 and 4 show a block diagram and a circuit diagram of essential parts of a second embodiment. In addition, the same reference numerals are given to the parts already described, and the duplicated description will be omitted.

First, the bridge circuit 21 will be described with reference to FIG. As shown in FIG. 4, the bridge circuit 21 has three
Each of the fixed resistors 21a, 21b, and 21c and the strain sensor 21d, which is a variable resistor, are provided.
And the connection between the strain sensor 21d and the resistors 21b and 21
A constant voltage power supply 23 is connected between the connection with c.

As shown in FIG. 3, the output side of the bridge 21 is connected to the input side of the amplifier 22, and the output side of the amplifier 22 is connected via the analog / digital conversion section 23 to one input end of the microcomputer 4A. It is connected to the.
The receiving unit 3 is provided at the other input end of the microcomputer 4A.
The output end of is connected. The microcomputer 4A includes a sound identifying unit 4Aa and an on / off time designating unit 4A.
b and the sound intensity designating section 4Ac that designates the strength of the output sound
It has and.

Next, the operation will be described. The gloves 1 and 2 and the mouthpiece 7 are played as in the first embodiment. On / off signals from the gloves 1 and 2 are received by the receiver 3
Is input to the other input terminal of the microcomputer 4A via.

On the other hand, the breath blown from the mouthpiece 7 changes the resistance value of the strain sensor 21a as the strength of the breath to generate an output signal, and this output signal is amplified by the amplifier 22 and the A / D conversion section. It is converted into a digital signal at 23 and input to one input end of the microcomputer 4A. The sound identifying unit 4Aa and the on / off time designating unit 4Ab of the microcomputer 4A generate signals corresponding to the detection data from the gloves 1 and 2, and the sound intensity designating unit 4Ac
Generates a sound intensity signal signal corresponding to the resistance value and outputs it to the sound source unit 5. The sound source unit 5 outputs a signal corresponding to the input “sound”, “time”, and “strength of sound”, and this signal is amplified by the power amplifier 8 and output from the speaker 11.

Third Embodiment FIG. 5 shows a block diagram of the third embodiment. In addition, the same reference numerals are given to the parts already described, and the duplicated description will be omitted.

As shown in FIG. 5, this embodiment comprises a transmitting device S having a transmitting antenna and a receiving device R having a receiving antenna. A modulation unit 31 that modulates the detection data of the gloves 1 and 2 is connected to the reception unit 3 of the transmission device S, and the modulated detection data is transmitted as a radio wave via the transmission antenna 32. The reception device R includes a reception antenna 33 that receives the radio wave, a demodulation unit 34 that demodulates the reception radio wave, and a reception unit 3 that receives the demodulated detection data.
And a microcomputer 4, a sound source unit 5, a power amplifier 8, a speaker 11 and the like (not shown).

Next, the operation will be described. For example, the performer plays the transmitter S to which the gloves 1 and 2 are connected on the study desk in the same manner as above by turning the pressure sensor on and off. This performance is received by the receiving unit 3, modulated by the modulating unit 31, and transmitted as a radio wave via the transmitting antenna 33. For example, the receiving antenna 3 of the receiving device R placed in the corner of the study room.
Received at 3.

The radio wave received by the receiving antenna 33 is demodulated by the demodulating section 34, processed by the microcomputer 4, the sound source section 5, the power amplifier 8 and the like via the receiving section 3 and output as a music performance from the speaker 11. To be done.

In addition, through the first to third embodiments, the sound allocation to the finger pressing sensors of the gloves 1 and 2 is as follows.
As an example of allocation, "Doremifasolacid" may be allocated to the pressure sensors 1a to 1e and 2a to 2c. Further, in the second allocation example, "Doremifaso" is allocated to the pressure sensors 1a to 1e, "LA" is allocated to the pressure sensors 1a and 1b being simultaneously turned on, and "Si" is allocated to the pressure sensors 1a and 1c being simultaneously turned on. "Do" is assigned to the pressure sensors 1a and 1d being turned on at the same time, and one octave higher is assigned to the pressure sensor 2a.
One octave lower is allocated to the pressure sensor 2b, and a semitone is assigned to the pressure sensor 2c. In addition to this, it is of course possible to perform a complicated performance by allocating various sounds.

[0023]

According to the present invention, a pressure sensor is attached to a fingertip of a glove, and music can be played according to the on / off time and on / off time of the pressure sensor, so that the input device (glove) can be made compact. You can enjoy the performance easily.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention.

FIG. 2 is a circuit diagram of a VCA applied to the first embodiment.

FIG. 3 is a block diagram of a second embodiment of the present invention.

FIG. 4 is a circuit diagram of a bridge circuit applied to the second embodiment.

FIG. 5 is a block diagram of a third embodiment of the present invention.

[Explanation of symbols]

1, 2 ... Gloves (gloves) 1a to 1e, 2a to 2e ... Press sensor 3 ... Receiving unit 4, 4A ... Microcomputer (control device) 4a, 4Aa ... Microcomputer sound specifying unit 4b, 4Ab ... Microcomputer on Off-time designation unit 4Ac ... Sound intensity designation unit (audio signal intensity control device) of microcomputer 5 ... Sound source unit (audio signal generation unit) 6 ... VCA (audio signal intensity control device) 6a, 21d ... Strain sensor (variable resistance) 7) Mouthpiece 8 ... Power amplifier 11 ... Speakers 32, 33 ... Antenna S ... Transmitter R ... Receiver

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Natsuki Takahashi, Inventor 4-15-5 Omori Nishi, Ota-ku, Tokyo Pioneer Co., Ltd. Omori Plant (72) Inventor Yumi Namiki 4-15 Omori Nishi, Ota-ku, Tokyo No. 5 Pioneer Co., Ltd. Omori Plant (72) Inventor Shinhiro Miyata 4-15-5 Omori Nishi, Ota-ku, Tokyo Pioneer Co., Ltd. Omori Plant (72) Inventor Hiromitsu Wakabayashi 4 Omori Nishi, Ota-ku, Tokyo Chome 15-15 Pioneer Co., Ltd. Omori Plant (72) Inventor Hidehisa Ueda 4-15-5 Omori Nishi, Ota-ku, Tokyo Pioneer Co. Ltd. Omori Plant (72) Inventor Masafumi Ikeda Omori, Ota-ku, Tokyo West 4-15-5 Pioneer Co., Ltd. Omori Factory

Claims (3)

[Claims] 1. A glove having a pressure sensor attached to a fingertip, an audio signal generator for generating an audio signal, and an audio signal corresponding to detection data detected by the pressure sensor attached to the fingertip, the audio signal. An electronic musical instrument comprising: a control device that controls the generator to generate the electronic musical instrument. 2. A mouthpiece for blowing air, a variable resistor whose resistance value changes according to the strength of the breath blown from the mouthpiece, and the audio signal generation according to the resistance value of the variable resistor. The electronic musical instrument according to claim 1, further comprising: an audio signal strength control device that controls the strength of an audio signal generated from the device. 3. A portable transmitter that modulates and transmits detection data detected by the glove, and a receiver that receives and demodulates the detection data transmitted by the transmitter. The electronic musical instrument according to claim 1, which is characterized in that.