JP2017062327A - Electronic wind instrument, talking modulator and electronic wind instrument system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic wind instrument capable of easily actualizing an effect sound musical performance using a talking modulator.SOLUTION: The present invention relates to an electronic wind instrument 1 comprising an electronic wind instrument body 10 and a talking modulator 50 attached to the electronic wind instrument body 10. The electronic wind instrument body 10 comprises a blow-in mouth 20a for blowing breath into the electronic wind instrument body 10, an emission part 20b for blowing out the blown-in breath, a microphone 34 provided in the electronic wind instrument body 10 and receiving a sound between the blow-in mouth 20a and the emission part 20b as a via-oral-cavity sound, and a line-out terminal 35 capable of outputting an effect sound based upon at least the via-oral-cavity sound to an external sound output device. The talking modulator 50 comprises a sound collection part 51 provided at the sound output part 22 and collecting a musical instrument sound from a speaker 31, and a conduit part 52 having one end linked to the inside of the sound collection part 51 and the other end which can be inserted into the emission part 22b.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electronic wind instrument, a talking modulator, and an electronic wind instrument system.

There is known an apparatus called an effector that is used for the purpose of giving some kind of acoustic effect when playing a musical instrument.
For example, according to an effector that directs musical instrument sound to the performer's oral cavity, a sound effect that adds tonation into which the person is singing is added to the musical instrument sound by picking up sound through the oral cavity that has changed according to the shape of the oral cavity. Is obtained.
Examples of such effectors include those that are attached to the human body of the performer and generate instrument sounds in the oral cavity via the performer's human body (for example, see Patent Document 1), or instrument sounds that are generated outside the human body. Is known to lead to the oral cavity of a player through a tube or the like, and the latter is called a talking modulator and is widely used.

JP 2009-180957 A

  However, sound effect performance using a talking modulator requires a talking modulator with a built-in speaker and a microphone for picking up sound through the oral cavity that changes according to the shape of the oral cavity. There is a problem that necessary equipment becomes large and cannot be easily realized.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electronic wind instrument, a talking modulator, and an electronic wind instrument system that can easily realize a sound effect using a talking modulator.

In order to achieve the above object, the present invention is grasped by the following configuration.
The electronic wind instrument according to the present invention generates a musical tone signal in response to a pitch specification, and emits a musical tone based on the generated musical tone signal, and the first acoustic emission unit. The inner tube that guides the musical sound emitted from the head to the performer's oral cavity through the mouthpiece, and the intraoral sound obtained by changing the musical sound guided to the oral cavity according to the oral cavity. A sound sensor for sounding, and an output unit for causing the second sound emitting unit to output sound transmitted through the oral cavity detected by the sound sensor.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic wind instrument which can implement | achieve the effect sound performance using the talking modulator easily can be provided.

It is sectional drawing of the electronic wind instrument main body and the talking modulator which comprise the electronic wind instrument which concerns on embodiment of this invention. It is sectional drawing of the electronic wind instrument which shows a talking modulator mounting state. It is explanatory drawing which shows the sound effect performance state using a talking modulator. It is a block diagram which shows the control structure of an electronic wind instrument. It is principal part sectional drawing of the electronic wind instrument which shows the flow of the sound at the time of a sound effect performance using a talking modulator. It is a flowchart which shows the example of control at the time of a sound effect performance using a talking modulator.

Hereinafter, an electronic wind instrument 1 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of an electronic wind instrument main body 10 and a talking modulator 50 constituting an electronic wind instrument 1 according to an embodiment of the present invention. The electronic wind instrument main body 10 of the present embodiment imitates the shape of a saxophone. However, the present invention is not limited to this, and it may be similar to other wind instruments such as clarinet.

  As shown in FIG. 1, the electronic wind instrument 1 of this embodiment includes an electronic wind instrument body 10 and a talking modulator 50 that is selectively attached to the electronic wind instrument 1.

  The electronic wind instrument main body 10 includes a tube unit 20, a mouthpiece 21, a sound output unit 22, a speaker 31 as a first sound emitting unit, an operation key 32, a pressure sensor 33, and a sound receiving unit (for example, , A sound sensor such as a microphone 34), a line-out terminal 35 (see FIG. 4), and a control board 40.

The tube unit 20 is a case simulating the shape of a saxophone. A mouthpiece 21 is provided so as to extend rearward (player side) from the upper end of the tube unit 20, and the lower part of the tube unit 20. A sound output unit 22 is provided so as to extend forward or upward.
And according to performance operation of the electronic wind instrument main body 10, a musical instrument sound is output from the speaker 31 arrange | positioned at the sound output part 22. FIG.

The distal end side of the mouthpiece 21 is located in the mouth of the performer during performance.
During normal performance (in the blow mode described later), the performer blows in through the blow port 20a formed at the tip of the mouthpiece 21, and the performance is performed only when the pressure sensor 33 detects the blow pressure. Is now possible.

The player's breath blown through the mouthpiece 20a of the mouthpiece 21 is discharged to the outside of the electronic wind instrument main body 10 from the discharge portion 20b formed at the lower end portion of the tube portion 20.
For example, the tubular body portion 20 of the present embodiment includes an inner tube 24 having a smaller diameter than the outer tube 23 inside the outer tube 23 that is a casing, and the upper end of the outer tube 23 communicates with the blowing port 20a. While the intermediate portion and the lower end portion are sealed by the sealing members 25 to 27, the inner tube 24 has an upper end portion that communicates with the blowing port 20a and a lower end portion that communicates with the discharge portion 20b.

  That is, in the electronic wind instrument main body 10 of the present embodiment, the player's breath blown from the blow hole 20a enters the inside of the inner tube 24 through the inside of the mouthpiece 21 and the inside of the upper end side of the outer tube 23, It is discharged to the outside of the electronic wind instrument main body 10 through the inner space 28 of the inner tube 24 from the lower end opening of the inner tube 24 that is the discharge portion 20b.

The pressure sensor 33 is disposed inside the upper part of the tubular body part 20 and detects the pressure (breath pressure) of the breath blown by the performer through the blow-in opening 20a.
In the present embodiment, the pressure sensor 33 is disposed in a space secured between the outer peripheral portion on the upper end side of the inner tube 24 and the inner peripheral portion of the outer tube 23.
Since this arrangement space is branched from the breath passage that leads from the blowing port 20a to the inner space 28 of the inner tube 24, the breath pressure can be detected without obstructing the breath flow.

A plurality of operation keys 32 are arranged on the front surface portion of the tubular body portion 20, and the performer designates the pitch of a musical sound to be generated by operating the operation keys 32.
In addition to the operation keys 32 shown in the figure, there are operation keys for performing various settings. For example, the pressure of the breath (breath pressure) that the pressure sensor 33 has blown from the blowing port 20a is used as the operation keys for performing the various settings. A blowing mode in which performance with the operation key 32 can be performed only when it is detected, and a blowing-in unnecessary mode in which performance with the operation key 32 can be performed regardless of detection of pressure (breath pressure) by the pressure sensor 33. A setting key for setting a function for switching a performance mode (control mode) or the like is included.

The microphone 34 is a component added to perform a sound effect using the talking modulator 50. The microphone 34 is provided in the electronic wind instrument main body 10 and receives a sound between the discharge port 20a and the discharge unit 20b.
An operation for selecting whether or not to use the microphone 34 can also be performed by an operation key (not shown).
In the present embodiment, the microphone is a space secured between the outer peripheral portion on the upper end side of the inner tube 24 and the inner peripheral portion of the outer tube 23, and is located at a position opposite to the pressure sensor 33 across the inner tube 24. 34 is arranged.
Since this arrangement space is branched from the breath passage that leads from the blowing port 20a to the inner space 28 of the inner tube 24, the flow of the breath is not hindered during normal performance.

The line-out terminal 35 (see FIG. 3) is provided for outputting sound generated in the electronic wind instrument main body 10 to an external sound output device or recording device.
For example, as shown in FIG. 3, when the amplifier built-in speaker 2 as the second sound emitting unit is connected to the line-out terminal 35, the sound generated in the electronic wind instrument main body 10 is output from the amplifier built-in speaker 2. It becomes possible to do.

The control board 40 is a board that constitutes a control unit of the electronic wind instrument main body 10, and is disposed inside the front surface portion of the tubular body part 20.
The control board 40 generates a musical instrument sound based on the operation signal of the operation key 32 and the breath pressure signal of the pressure sensor 33, and performs control to output from the speaker 31 or the line-out terminal 35. And a blowing-free mode.

The insufflation mode is a mode in which the performer performs by operating an operation key while inhaling from the insufflation port 20a, and a musical sound is generated only when the breath pressure is detected by the pressure sensor 33.
Since the pressure state of the breath pressure can be detected by the pressure sensor 33, the volume control according to the state of the breath pressure may be performed.
In the following description, it is assumed that the volume is controlled by the blowing pressure.

The blowing unnecessary mode is a mode in which a musical sound is generated without blowing from the blowing port 20a, the volume is controlled to be constant regardless of the detection signal of the pressure sensor 33, and the pitch specified by the operation of the operation key 32 is set. This mode can generate musical sounds.
This blow-in unnecessary mode is used, for example, when the electronic wind instrument main body 10 is played at a musical instrument store, and the tone color of the musical sound generated from the electronic wind instrument main body 10 can be reproduced without opening the mouthpiece 21. Can be confirmed.

FIG. 2 is a cross-sectional view of the electronic wind instrument showing a wearing state of the talking modulator.
The talking modulator 50 is a component added to perform a sound effect on the electronic wind instrument 1, and includes a sound collection unit 51 that collects musical sounds generated from the sound output unit 22 of the electronic wind instrument body 10, and a sound collection unit 51. And a conduit portion 52 having one end communicating with the other and having the other end that can be inserted into the discharge portion 20b of the electronic wind instrument main body 10.

The sound collection unit 51 covers the sound output unit 22 of the electronic wind instrument main body 10 so as to prevent sound leakage as much as possible, collects instrument sounds output from the speaker 31 of the sound output unit 22 and guides them to the conduit unit 52.
That is, the talking modulator 50 of the present embodiment is a simple type that does not have a dedicated speaker, and can be manufactured at a lower cost than a conventional talking modulator with a built-in speaker.

The conduit portion 52 is formed of, for example, a flexible vinyl tube or the like, and when performing a sound effect, the other end is connected to the discharge portion 20b of the electronic wind instrument main body 10 so as to be inserted.
That is, the conduit portion 52 of the present embodiment does not need to extend to the performer's mouth at the other end. Therefore, the conduit portion 52 is not only shorter than the conduit portion provided in the conventional talking modulator, but the performer can directly touch the mouth. Therefore, there is a high degree of freedom in selecting materials and calibers.

FIG. 3 is an explanatory diagram showing a sound effect performance state using the talking modulator 50.
As shown in FIGS. 2 and 3, when performing a sound effect using the talking modulator 50, the talking modulator 50 is attached to the electronic wind instrument main body 10, and the operation key 32 of the electronic wind instrument main body 10 is operated as a blowing unnecessary mode. Start pitch specification operation.

The instrument sound output from the sound output unit 22 of the electronic wind instrument main body 10 is guided to the emission unit 20 b of the electronic wind instrument main body 10 via the sound collecting unit 51 and the conduit unit 52 of the talking modulator 50.
The musical instrument sound entered from the discharge part 20b flows through the tube part 20 in the direction opposite to the direction in which the breath flows during normal performance, and is guided to the performer's oral cavity from the blow-in opening 20a.

Then, the sound transmitted through the oral cavity that changes according to the shape of the oral cavity is received by the microphone 34, and digital processing or the like is performed as necessary, and is output from the line-out terminal 35.
The sound output from the line-out terminal 35 is a sound effect obtained by adding an intonation like a person to a musical instrument sound. For example, the sound is output from the speaker with built-in amplifier 2 connected to the line-out terminal 35.

  According to the electronic wind instrument 1 configured as described above, the components of the electronic wind instrument main body 10 can be effectively used without preparing a full-fledged talking modulator with a built-in speaker and a microphone for picking up sound through the oral cavity. Thus, it is possible to easily realize a sound effect performance using a so-called talking modulator.

  Further, according to the electronic wind instrument 1, when performing such a sound effect, the instrument sound is guided to the performer's mouth through the mouthpiece 21 of the electronic wind instrument body 10 supported by the performer. Compared to the conventional method of changing the shape of the oral cavity while holding the part, it is possible to perform the sound effect as if playing the electronic wind instrument 1 as well as playing the sound effect.

  Next, a specific control configuration and control example of the electronic wind instrument 1 according to the embodiment of the present invention will be described with reference to FIGS.

FIG. 4 is a block diagram showing a control configuration of the electronic wind instrument 1.
As shown in FIG. 4, the control board 40 of the electronic wind instrument main body 10 includes a waveform ROM 41, a plurality of A / D conversion units 42 and 43, a plurality of D / A conversion units 44 and 45, an amplifier 46, CPU47.

In the waveform ROM 41, waveform data for musical tone is written.
The A / D converter 42 converts the detection signal of the pressure sensor 33, which is an analog signal, into a digital signal and inputs it to the CPU 47 as a volume signal.
The A / D conversion unit 43 converts the received sound signal (oral cavity sound) of the microphone 34, which is an analog signal, into a digital signal and inputs the digital signal to the CPU 47 as a digital oral cavity sound (acoustic signal).

The D / A converter 44 converts the digital musical instrument sound (musical sound signal) output from the CPU 47 into an analog musical instrument sound and outputs it to the amplifier 46.
The amplifier 46 amplifies the analog instrument sound and outputs it from the speaker 31.
The D / A conversion unit 45 converts the digital sound effect (output sound signal) output from the CPU 47 into an analog sound effect and outputs the analog sound effect from the line-out terminal 35.

The CPU 47 has a ROM and a RAM, and executes a program written in the ROM in advance on the RAM, thereby realizing the performance in the blowing mode and the blowing unnecessary mode described above.
Hereinafter, the operation of the control board 40 during the sound effect performance using the talking modulator 50 (in the blowing unnecessary mode) will be described.

When in the blowing unnecessary mode, the CPU 47 generates a digital musical instrument sound based on the pitch information input from the operation key 32 and the waveform data for musical sound input from the waveform ROM 41, and outputs it to the D / A converter 44. To do.
The digital musical instrument sound is converted into an analog musical instrument sound by the D / A conversion unit 44, amplified by the amplifier 46, and output from the speaker 31.

The musical instrument sound output from the speaker 31 is guided to the discharge section 20b of the electronic wind instrument main body 10 via the sound collecting section 51 and the conduit section 52 of the talking modulator 50, and further blown through the inside of the electronic wind instrument main body 10. It is led from the mouth 20a to the performer's mouth.
The sound through the oral cavity that is guided to the performer's oral cavity and resonated is received by the microphone 34, converted into a digital oral sound by the A / D conversion unit 43, and taken into the CPU 47.
This digital oral sound may be output as it is to the D / A converter 45 as a digital sound effect, converted to an analog sound effect by the D / A converter 45 and output from the line-out terminal 35 (first digital sound). Signal processing).

FIG. 5 is a cross-sectional view of the main part of the electronic wind instrument 1 showing the flow of sound when performing a sound effect using the talking modulator 50.
As shown in FIG. 5, when playing a sound effect using the talking modulator 50, a musical instrument sound guided from the talking modulator 50 to the oral cavity of the performer through the electronic wind instrument body 10 and the performance are provided near the microphone 34. Sound from the mouth of the performer returned to the electronic wind instrument body 10 is mixed, and not only the sound from the mouth of the performer but also the sound of the instrument not passing through the performer's mouth 34 receives the sound.
In addition, in FIG. 5, the musical instrument sound is shown by the solid line, and the sound via the mouth is shown by the dotted line.

  When the CPU 47 outputs the sound received by the microphone 34 as it is to the D / A converter 45 as a digital sound effect, since the sound through the mouth and the instrument sound are included in the digital sound effect, a pure sound through the mouth is output. There is a possibility that the acoustic effect by the talking modulator 50 may be reduced.

In order to solve such a problem, the CPU 47 of this embodiment performs a subtraction process for subtracting the digital musical instrument sound from the sound (digital oral cavity sound) received by the microphone 34 (second digital signal processing). The processed sound signal is output to the D / A converter 45 as a digital sound effect.
If it does in this way, the musical instrument sound contained in the sound via the mouth which the microphone 34 received can be removed as much as possible, and the acoustic effect by the talking modulator 50 can be enhanced.
However, the burden on the CPU 47 due to the second digital signal processing is larger than that of the first digital signal processing.

  In addition, the musical instrument sound guided to the performer's oral cavity through the talking modulator 50 and the electronic wind instrument main body 10 passes through narrow paths such as the conduit portion 52 of the talking modulator 50 and the inner tube 24 of the electronic wind instrument main body 10. It can be considered that it is a more realistic state that the sound of the high frequency region is received by the microphone 34 as an attenuated instrument sound.

  Therefore, when the digital musical instrument sound is subtracted as it is from the sound received by the microphone 34 (sound via the digital mouth), the high frequency region may be excessively subtracted, which may adversely affect the final digital sound effect.

Therefore, the CPU 47 of this embodiment has a low-pass filter function (low-pass filter unit) that performs low-pass filtering processing on digital musical instrument sounds, and digital musical instrument sounds that have been low-pass filtered from sounds received by the microphone 34 (digital oral cavity sound). By subtracting (third digital signal processing), it is possible to suppress a decrease in detection accuracy of sound transmitted through the oral cavity due to deterioration of the high frequency region of the digital musical instrument sound, and to enhance the acoustic effect of the talking modulator 50.
However, the burden on the CPU 47 by the third digital signal processing is larger than that of the second digital signal processing.

  Next, a specific control procedure of the CPU 47 at the time of effect sound performance using the talking modulator 50 will be described with reference to FIG.

FIG. 6 is a flowchart showing an example of control during sound effect performance using the talking modulator 50.
As shown in FIG. 6, when playing a sound effect using the talking modulator 50, the CPU 47 reads the operation signal of the operation key 32 (step S1), and determines the pitch based on the operation signal of the operation key 32 ( In step S2), the digital musical instrument sound generated based on the pitch or the like is output to the D / A converter 44 (step S3).
As a result, the instrument sound is output from the speaker 31, and the instrument sound output from the speaker 31 is guided to the performer's mouth through the inside of the talking modulator 50 and the electronic wind instrument body 10, and the sound via the mouth is 34 is received.

The CPU 47 reads the sound through the oral cavity received by the microphone 34 as the digital oral sound through the A / D converter 43 (step S4), and then performs digital signal processing (first to third digital signals) of the digital oral sound. Signal processing) is selected (step S5).
This selection can be made by the electronic wind instrument manufacturer and / or the performer.
For example, the electronic wind instrument manufacturer sets digital signal processing that is the default according to the performance of the CPU 47, and the performer changes the digital signal processing according to his / her preference (for example, using an operation key (not shown)). )I do.

  When the first digital signal processing is selected (step S5: first digital signal processing), the CPU 47 sets the digital oral sound received by the microphone 34 as a digital sound effect as it is (step S6).

  When the second digital signal processing is selected (step S5: second digital signal processing), the CPU 47 uses a digital sound effect as a sound signal obtained by subtracting the digital instrument sound from the digital oral cavity sound received by the microphone 34. (Step S7).

  When the third digital signal processing is selected (step S5: third digital signal processing), the CPU 47 performs low-pass filtering processing on the digital musical instrument sound (step S8) and then the digital received by the microphone 34. A sound signal obtained by subtracting the low-pass filtered digital musical instrument sound from the oral cavity sound is set as a digital sound effect (step S9).

  And after execution of step S6, S7, S9, an analog sound effect is output from the line-out terminal 35 by outputting a digital sound effect to the D / A conversion part 45 (step S10).

  The technical scope of the present invention includes various modifications and improvements as long as the object of the present invention is achieved.

The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
<Claim 1>
A first sound emitting unit that generates a musical sound signal in response to a pitch specification and emits a musical sound based on the generated musical sound signal;
An inner tube for guiding the musical sound emitted from the first sound emitting unit to the oral cavity of the performer through the mouthpiece;
A sound sensor for receiving a sound transmitted through the oral cavity obtained by changing the musical sound guided to the oral cavity according to the oral cavity;
An output unit for causing the second sound emitting unit to output sound transmitted through the oral cavity detected by the sound sensor;
Electronic wind instrument with
<Claim 2>
2. The electronic wind instrument according to claim 1, further comprising a subtracting unit that subtracts the musical sound from the oral cavity sound and supplies the subtracted musical sound to the acoustic signal output unit.
<Claim 3>
The electronic wind instrument according to claim 2, wherein the subtraction unit is a low-pass filter unit that performs low-pass filtering on the acoustic signal.
<Claim 4>
The electronic wind instrument according to any one of claims 1 to 3, wherein the output unit is a line-out terminal for supplying the sound via the oral cavity to the second sound emitting unit outside.
<Claim 5>
A talking modulator used in the electronic wind instrument of claim 1,
The talking modulator is
A sound collection unit for collecting musical sounds emitted from the first sound emission unit;
A conduit portion having one end communicating with the inside of the sound collecting portion and having the other end insertable into the discharge portion;
Talking modulator with
<Claim 6>
The electronic wind instrument of claim 1;
A talking modulator according to claim 5;
Electronic wind instrument system equipped with.

DESCRIPTION OF SYMBOLS 1 Electronic wind instrument 10 Electronic wind instrument main body 20a Blow-in opening 20b Release | release part 21 Mouthpiece 22 Sound output part 31 Speaker 32 Operation key 33 Pressure sensor 34 Microphone 35 Line out terminal 40 Control board 47 CPU
50 Talking modulator 51 Sound collecting part 52 Conduit part

Claims (6)

A first sound emitting unit that generates a musical sound signal in response to a pitch specification and emits a musical sound based on the generated musical sound signal;
An inner tube for guiding the musical sound emitted from the first sound emitting unit to the oral cavity of the performer through the mouthpiece;
A sound sensor for receiving a sound transmitted through the oral cavity obtained by changing the musical sound guided to the oral cavity according to the oral cavity;
An output unit for causing the second sound emitting unit to output sound transmitted through the oral cavity detected by the sound sensor;
Electronic wind instrument with   2. The electronic wind instrument according to claim 1, further comprising a subtracting unit that subtracts the musical sound from the oral cavity sound and supplies the subtracted musical sound to the acoustic signal output unit.   The electronic wind instrument according to claim 2, wherein the subtraction unit is a low-pass filter unit that performs low-pass filtering on the sound passing through the oral cavity.   4. The electronic wind instrument according to claim 1, wherein the acoustic signal output unit is a line-out terminal for supplying the sound passing through the oral cavity to the external second sound emitting unit. 5. A talking modulator used in the electronic wind instrument of claim 1,
The talking modulator is
A sound collection unit for collecting musical sounds emitted from the first sound emission unit;
A conduit portion having one end communicating with the inside of the sound collecting portion and having the other end insertable into the discharge portion;
Talking modulator with The electronic wind instrument of claim 1;
A talking modulator according to claim 5;
Electronic wind instrument system equipped with.

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