JP6679864B2 - Electronic wind instruments, talking modulators and electronic wind instrument systems - Google Patents

Description

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

There is known a device called an effector used for the purpose of giving some kind of acoustic effect when playing a musical instrument.
For example, according to an effector that guides a musical instrument sound to the performer's oral cavity, a sound effect that adds a human-speaking intonation to the musical instrument sound is obtained by picking up a sound through the oral cavity that changes according to the shape of the oral cavity with a microphone. Is obtained.
Such an effector is attached to the human body of the performer and generates a musical instrument sound in the oral cavity through the human body of the performer (see, for example, Patent Document 1), or an instrumental sound generated outside the human body. It is known that the sac is introduced into the mouth of the performer via a tube or the like, and the latter is called a talking modulator and is widely used.

JP, 2009-180957, A

  However, in order to perform a sound effect using a talking modulator, in addition to the musical instrument, a talking modulator with a built-in speaker and a microphone for picking up the oral sound that has changed according to the shape of the oral cavity are required. There was a problem that required equipment became large-scale and could not be realized easily.

  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 capable of easily realizing a sound effect performance using a talking modulator.

In order to achieve the above object, the present invention is understood by the following configurations.
The electronic wind instrument of the present invention generates a musical tone signal in response to designation of a pitch, and emits a musical tone based on the generated musical tone signal, and a first sound emitting section, and the first sound emitting unit. The internal sound tube that guides the musical sound emitted from the part to the mouth of the performer through the mouthpiece and the musical sound that is guided to the oral cavity, and receives the trans-oral sound obtained by changing the musical sound according to the oral cavity. A sound sensor that makes a sound, and an output unit that outputs the sound via the oral cavity detected by the sound sensor to the second sound emitting unit are provided.

  According to the present invention, it is possible to provide an electronic wind instrument capable of easily realizing a sound effect performance using a talking modulator.

FIG. 3 is a cross-sectional view of an electronic wind instrument main body and a talking modulator that constitute the electronic wind instrument according to the embodiment of the present invention. It is sectional drawing of the electronic wind instrument which shows the mounted state of a talking modulator. It is explanatory drawing which shows the effect sound performance state using a talking modulator. It is a block diagram which shows the control structure of an electronic wind instrument. FIG. 7 is a cross-sectional view of a main part of an electronic wind instrument showing a sound flow when a sound effect is played using a talking modulator. It is a flow chart which shows an example of control at the time of 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 body 10 and a talking modulator 50 that constitute an electronic wind instrument 1 according to an embodiment of the present invention. The electronic wind instrument body 10 of the present embodiment imitates the shape of a saxophone. However, the present invention is not limited to this, and may be a model imitating another wind instrument such as a clarinet.

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

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

The tubular body portion 20 is a casing imitating the shape of a saxophone, and a mouthpiece 21 is provided so as to extend rearward (toward the performer) from the upper end portion of the tubular body portion 20, and the lower portion of the tubular body portion 20. The sound output unit 22 is provided so as to extend forward or upward from.
Then, a musical instrument sound is output from the speaker 31 arranged in the sound output unit 22 in accordance with a performance operation of the electronic wind instrument main body 10.

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

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

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

A plurality of operation keys 32 are arranged on the front surface of the tubular body portion 20, and the player operates the operation keys 32 to specify the pitch of a musical sound to be generated.
In addition to the operation keys 32 shown in the figure, there are operation keys for performing various settings. The operation keys for performing the various settings include, for example, the pressure (breath pressure) of the breath blown from the insufflation port 20a by the pressure sensor 33. A blowing mode in which the performance with the operation keys 32 can be performed only when it is detected, and a blowing-free mode in which the performance with the operation keys 32 can be performed regardless of the detection of the pressure (breath pressure) by the pressure sensor 33. It also includes setting keys for setting functions for switching performance modes (control modes) such as.

The microphone 34 is a component added to perform a sound effect performance using the talking modulator 50, is provided in the electronic wind instrument main body 10, and receives a sound between the blow-in port 20a and the emitting portion 20b.
The 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, a microphone is provided at a position on the opposite side of the pressure sensor 33 across the inner pipe 24, which is a space secured between the outer peripheral portion on the upper end side of the inner pipe 24 and the inner peripheral portion of the outer pipe 23. 34 are arranged.
Since this arrangement space is branched from the breath flow passage leading from the blow-in port 20a to the inner space 28 of the inner tube 24, it does not hinder the flow of breath during normal playing.

The line-out terminal 35 (see FIG. 3) is provided to output the 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, if 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 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 section of the electronic wind instrument main body 10, and is arranged inside the front surface of the tubular body section 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 outputs it from the speaker 31 or the line-out terminal 35. And a blowing unnecessary mode.

The blowing mode is a mode in which the player performs a performance by operating the operation keys while blowing a breath from the blowing port 20a, and is a mode in which a musical sound is generated only when the pressure sensor 33 detects the breath pressure.
Since the pressure state of the breath pressure can be detected by the pressure sensor 33, the sound volume control according to the state of the breath pressure may be performed.
Hereinafter, the description will be made assuming 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 a breath 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 controlled. It is a mode that can generate musical sounds.
This blowing-free mode is used, for example, when performing a trial performance of the electronic wind instrument main body 10 at a store of a musical instrument store, and tones of a musical sound generated from the electronic wind instrument main body 10 without touching the mouthpiece 21. You can check.

FIG. 2 is a cross-sectional view of the electronic wind instrument showing a state where the talking modulator is mounted.
The talking modulator 50 is a component added to perform a sound effect performance in the electronic wind instrument 1, and includes a sound collection unit 51 that collects a musical sound 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 inside of the container and having the other end insertable into the discharge portion 20b of the electronic wind instrument body 10.

The sound collecting 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 the collected instrument sounds to the conduit unit 52.
That is, the talking modulator 50 of the present embodiment is a simple type without a dedicated speaker and can be manufactured at a lower cost than a conventional talking modulator having a built-in speaker.

The conduit portion 52 is formed of, for example, a flexible vinyl tube or the like, and the other end thereof is connected to the emitting portion 20b of the electronic wind instrument main body 10 in an insertion shape when performing a sound effect.
That is, the conduit portion 52 of the present embodiment does not need to extend at the other end to the player's oral cavity, so that it is not only shorter than the conduit portion included in the conventional talking modulator, but also the player directly holds it in his mouth. Therefore, there is a high degree of freedom in selecting materials, diameters, etc.

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 performance 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 used as a blowing-free mode. Start the pitch specification operation.

The musical instrument sound output from the sound output unit 22 of the electronic wind instrument body 10 is guided to the emission unit 20b of the electronic wind instrument body 10 via the sound collection unit 51 and the conduit unit 52 of the talking modulator 50.
The musical instrument sound entered from the emitting portion 20b flows through the tubular body portion 20 in a direction opposite to the direction in which the breath flows during a normal performance, and is guided to the performer's oral cavity through the blowing port 20a.

Then, the microphone 34 receives the sound via the oral cavity that has changed according to the shape of the oral cavity, and digitally processes it as necessary to output it from the line-out terminal 35.
The sound output from the line-out terminal 35 is a sound effect obtained by adding intonation to the sound of a musical instrument, and is output from the speaker 2 with a built-in amplifier connected to the line-out terminal 35, for example.

  According to the electronic wind instrument 1 configured as described above, the components of the electronic wind instrument main body 10 are effectively utilized without separately preparing a full-scale talking modulator having a built-in speaker and a microphone for picking up sounds from the oral cavity. Then, it becomes possible to easily realize a sound effect performance using a so-called talking modulator.

  Further, according to the electronic wind instrument 1, since the musical instrument sound is guided to the performer's mouth through the mouthpiece 21 of the electronic wind instrument body 10 supported by the performer during such a sound effect performance, the conduit of the talking modulator is provided. Compared to the conventional case in which the shape of the oral cavity is changed while holding the part, not only the effect sound performance is facilitated, but also the effect sound performance can be performed as if the electronic wind instrument 1 is played.

  Next, specific control configurations and control examples of the electronic wind instrument 1 according to the embodiment of the present invention will be described with reference to FIGS. 4 to 6.

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 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, And a CPU 47.

Waveform data for musical tones is written in the waveform ROM 41.
The A / D conversion unit 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 sound reception signal of the microphone 34 (sound through the oral cavity), which is an analog signal, into a digital signal, and inputs the digital signal to the CPU 47 as a sound through the oral cavity (acoustic signal).

The D / A converter 44 converts the digital musical instrument sound (tone signal) output from the CPU 47 into an analog musical instrument sound and outputs the analog musical instrument sound to the amplifier 46.
The amplifier 46 amplifies the analog musical instrument sound and outputs it from the speaker 31.
The D / A converter 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 to realize the performance in the blowing mode and the blowing unnecessary mode described above.
Hereinafter, the operation of the control board 40 when playing a sound effect using the talking modulator 50 (a blowing-free mode) will be described.

In the blowing unnecessary mode, the CPU 47 generates a digital musical instrument sound based on the pitch information input from the operation keys 32 and the musical tone waveform data input from the waveform ROM 41, and outputs the digital musical instrument sound to the D / A conversion unit 44. To do.
The digital musical instrument sound is converted into an analog musical instrument sound by the D / A converter 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 emitting portion 20b of the electronic wind instrument main body 10 via the sound collecting portion 51 of the talking modulator 50 and the conduit portion 52, and is further blown through the inside of the electronic wind instrument main body 10. It is guided to the performer's mouth through the mouth 20a.
The oral cavity sound that is guided to the player's oral cavity and resonated is received by the microphone 34, converted into a digital oral cavity sound by the A / D conversion unit 43, and taken into the CPU 47.
The digital oral sound may be directly output to the D / A converter 45 as a digital sound effect, converted into 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 essential parts of the electronic wind instrument 1 showing the flow of sound when a sound effect is played using the talking modulator 50.
As shown in FIG. 5, when a sound effect is played using the talking modulator 50, a musical instrument sound introduced from the talking modulator 50 into the oral cavity of the performer through the electronic wind instrument body 10 near the microphone 34 The oral sound that has returned from the mouth of the performer to the inside of the electronic wind instrument body 10 is mixed, and not only the sound of the oral cavity that has passed through the oral cavity of the performer but also the sound of the instrument that does not pass through the oral cavity of the performer is microphone. 34 is received.
In FIG. 5, instrument sounds are shown by solid lines, and oral sounds are shown by dotted lines.

  When the CPU 47 outputs the sound received by the microphone 34 as it is to the D / A conversion unit 45 as a digital sound effect, since the digital sound effect includes the oral cavity sound and the instrument sound, a pure oral cavity sound is output. Compared with the above, there is a possibility that the acoustic effect of the talking modulator 50 is reduced.

In order to solve such a problem, in the CPU 47 of the present embodiment, a subtraction process of subtracting a digital musical instrument sound from a sound received by the microphone 34 (digital oral cavity sound) (second digital signal processing) is performed. The processed sound signal is output to the D / A conversion unit 45 as a digital sound effect.
By doing so, the musical instrument sound included in the oral cavity sound received by the microphone 34 can be removed as much as possible, and the acoustic effect of the talking modulator 50 can be enhanced.
However, the load of the CPU 47 due to the second digital signal processing is larger than that of the first digital signal processing.

  Further, the musical instrument sound introduced into the oral cavity of the performer through the inside of the talking modulator 50 and the electronic wind instrument main body 10 passes through a narrow path 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 is considered that it is more realistic that the sound in the high frequency region becomes an attenuated musical instrument sound and is received by the microphone 34.

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

Therefore, the CPU 47 of the present embodiment is provided with a low-pass filter function (low-pass filter unit) for low-pass filtering the digital musical instrument sound, and converts the sound received by the microphone 34 (digital oral cavity sound) into the digital musical instrument sound subjected to the low-pass filtering processing. By subtracting (third digital signal processing), it is possible to suppress a decrease in accuracy of detection of the sound 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 load on the CPU 47 due to the third digital signal processing is larger than that of the second digital signal processing.

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

FIG. 6 is a flowchart showing an example of control when a sound effect is played using the talking modulator 50.
As shown in FIG. 6, when playing a sound effect using the talking modulator 50, the CPU 47 reads an operation signal of the operation key 32 (step S1) and determines a 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 oral cavity of the performer through the insides of the talking modulator 50 and the electronic wind instrument main body 10, and the trans-oral sound is microphoned. The sound is received at 34.

The CPU 47 reads the oral cavity sound received by the microphone 34 as a digital oral cavity sound via the A / D conversion unit 43 (step S4), and then performs digital signal processing of the digital oral cavity sound (first to third digital signals). Signal processing) is selected (step S5).
This selection can be made by the electronic wind instrument manufacturer and / or the performer.
For example, a manufacturer of electronic wind instruments sets default digital signal processing according to the performance of the CPU 47, and a performer changes the digital signal processing according to his or 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 directly uses the digital oral cavity sound received by the microphone 34 as the digital sound effect (step S6).

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

  If 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 receives the digital sound 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 effect sound (step S9).

  After executing steps S6, S7, and S9, the digital effect sound is output to the D / A conversion unit 45, and thereby the analog effect sound is output from the line-out terminal 35 (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.

Hereinafter, the inventions described in the claims attached to the application of this application will be additionally described. The claim numbers listed in the appendices are as set forth in the claims initially attached to the application for this application.
<Claim 1>
A first sound emitting section for generating a musical tone signal in response to a pitch designation and emitting a musical tone based on the generated musical tone signal;
An inner tube that guides the musical sound emitted from the first sound emitting unit to the player's mouth through a mouthpiece,
A sound sensor guided to the oral cavity, a sound sensor for receiving a sound via the oral cavity obtained by changing the musical tone according to the oral cavity,
An output unit for outputting the sound passing through the oral cavity detected by the sound sensor to the second sound emitting unit;
Electronic wind instrument equipped with.
<Claim 2>
The electronic wind instrument according to claim 1, further comprising a subtraction unit that subtracts the musical sound from the oral cavity sound and supplies the acoustic signal output unit 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 low-pass filters the acoustic signal.
<Claim 4>
The electronic wind instrument according to claim 1, wherein the output unit is a line-out terminal for supplying the sound through the oral cavity to the second sound emitting unit outside.
<Claim 5>
A talking modulator used in the electronic wind instrument according to claim 1,
The talking modulator is
A sound collecting unit for collecting the musical sound emitted from the first sound emitting unit;
A conduit part having one end communicating with the inside of the sound collecting part and having the other end insertable into the discharging part,
Talking modulator with.
<Claim 6>
An electronic wind instrument according to claim 1,
A talking modulator according to claim 5;
Electronic wind instrument system equipped with.

1 Electronic Wind Instrument 10 Electronic Wind Instrument Main Body 20a Blow-in Port 20b Ejection Section 21 Mouthpiece 22 Sound Output Section 31 Speaker 32 Operation Key 33 Pressure Sensor 34 Microphone 35 Lineout Terminal 40 Control Board 47 CPU
50 Talking modulator 51 Sound collecting part 52 Conduit part

Claims (6)

A first sound emitting section for generating a musical tone signal in response to a pitch designation and emitting a musical tone based on the generated musical tone signal;
An inner tube that guides the musical sound emitted from the first sound emitting unit to the player's mouth through a mouthpiece,
A sound sensor guided to the oral cavity, a sound sensor for receiving a sound via the oral cavity obtained by changing the musical tone according to the oral cavity,
An output unit for outputting the sound passing through the oral cavity detected by the sound sensor to the second sound emitting unit;
Electronic wind instrument equipped with. 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 musical sound to the output unit . The electronic wind instrument according to claim 2, wherein the subtraction unit further includes a low-pass filter unit that low-pass filters the musical sound . The electronic wind instrument according to claim 1, wherein the output unit is a line-out terminal for supplying the sound through the oral cavity to the second sound emitting unit outside. A talking modulator used in the electronic wind instrument according to claim 1,
The talking modulator is
A sound collecting unit for collecting the musical sound emitted from the first sound emitting unit;
A conduit part having one end communicating with the inside of the sound collecting part and having the other end insertable into the discharging part ,
Talking modulator with. An electronic wind instrument according to claim 1,
A talking modulator according to claim 5;
Electronic wind instrument system equipped with.

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