JP2007065197A - Actuator for woodwind instrument performance, and woodwind instrument playing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an actuator for a woodwind instrument performance and a woodwind instrument player, by which timbre very close to that by a human performance can be obtained. <P>SOLUTION: When compressed air is blown in an artificial mouth 19, a reed 17 self-vibrates with a compressed air flow and then goes into behavior that is almost in a playing state of a real woodwind instrument. At the same time, a piezoelectric vibrator 23, stuck on the reed 17 vibrates corresponding to an excitation signal, but the piezoelectric vibrator 23 is compact and lightweight and has weak mechanical characteristics, so that self-vibrations of the reed 17 are disturbed less. Furthermore, the piezoelectric vibrator 23 is easily influenced by a tube resonance frequency of a wind instrument, so vibrations of non-resonance frequency are attenuated with sound waves reflected by the tube, but vibrations of resonance frequency are amplified by the tube. Thus, vibrations corresponding to resonance of the tube are obtained, and then the reed 17 behaves almost in the playing state of the real wind instrument whose reed 17 self-oscillates, despite its being driven by an electrical signal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a woodwind instrument playing actuator and a woodwind instrument performance apparatus capable of playing a woodwind instrument.

Techniques for automatically playing musical instruments by machines are widely known. For example, automatic organs and automatic pianos that automatically perform musical instruments have been produced for a long time. In recent years, machines that automatically play not only keyboard instruments but also wind instruments have been developed. Patent Document 1 discloses a robot that automatically plays brass instruments.
JP 2004-258443 A

  The device described in Patent Document 1 is a performance actuator dedicated to brass instruments and cannot be applied to woodwind instruments. On the other hand, there are many lovers of woodwind instruments. Therefore, it has been desired to develop an actuator that can automatically play woodwind instruments. In particular, there has been a demand for a performance actuator for a woodwind instrument that can express a performance close to a human performance.

  The present invention has been made in view of the above-described background, and an object thereof is to provide a woodwind instrument playing actuator and a woodwind instrument performance apparatus capable of obtaining a tone color very close to human performance.

  In order to solve the above problems, the present invention provides a vibrator that vibrates a lead attached to a mouthpiece of a woodwind instrument in accordance with an excitation signal, an artificial oral cavity having a pair of opening and closing walls that can be opened and closed with respect to each other, It is composed of a flexible member, provided at opposite edges of the pair of opening and closing walls, provided through a pair of artificial lips that sandwich the lead when the opening and closing walls are closed, and the artificial oral cavity, A pressurized gas introduction hole through which pressurized gas is introduced, and the artificial oral cavity is configured to be a sealed space in a portion other than the reed when the open / close wall is closed. A wind instrument playing actuator is provided.

In a preferred aspect of the present invention, the contact portion is configured to be movable and is capable of contacting the tip end portion of the lead that is sandwiched between the pair of artificial lips, and the position of the contact portion according to a tongue drive signal. You may make it provide the tongue drive part to control.
In a further preferred aspect of the present invention, lip driving means provided on at least one of the pair of artificial lips and changing the position of the artificial lip according to a lip driving signal may be provided.
In a further preferred aspect of the present invention, the vibrator may be constituted by a piezoelectric element.
The piezoelectric element may be formed in a film shape.

The present invention also provides a woodwind instrument playing apparatus comprising the woodwind instrument performance actuator described above and an excitation signal generating means for generating the excitation signal based on performance data indicating the content of a musical sound. To do.
In addition, the present invention provides the above-described actuator for playing a woodwind instrument, and a pressurized gas control means for controlling the amount of the pressurized gas introduced into the pressurized gas introduction hole based on performance data indicating the content of the musical sound. And a woodwind instrument playing device.

  In a preferred aspect of the present invention, a performance operator driving means for driving a performance operator of a woodwind instrument based on the drive signal, and a drive signal generating means for generating the drive signal based on the pitch indicated by the performance data are provided. You may make it do.

  According to the present invention, it is possible to obtain a timbre very close to human performance in automatic performance of woodwind instruments.

[Actuator]
FIG. 1 is a side sectional view of an actuator 1 according to an embodiment of the present invention, and FIG. 2 is a front view of the actuator 1. In the figure, 11 is an artificial maxilla and 12 is an artificial mandible. The artificial upper jaw 11 and the artificial lower jaw 12 form an artificial oral cavity 19. Reference numeral 13 denotes an artificial temporomandibular joint that rotatably supports the upper jaw support C1 and the lower jaw support C2. The maxillary support C1 has an arm C1-1 extending toward the upper surface of the artificial maxillary 11 and an arm C1-2 extending on the opposite side of the artificial temporomandibular joint 13 as viewed from the arm C1-1. Similarly, the lower jaw support C2 has an arm C2-1 extending on the lower surface of the artificial lower jaw 12, and an arm C2-2 extending on the opposite side of the artificial jaw joint 13 as viewed from the arm C2-1.

The arm C1-1 is fixed to the upper surface of the artificial upper jaw 11 with a screw, and the arm C2-1 is fixed to the lower surface of the artificial lower jaw 12 with a screw. An artificial jaw opening / closing solenoid 22 is provided on the opposing surfaces of the arms C1-2 and C2-2. When the plunger of the artificial jaw opening / closing solenoid 22 moves in the protruding direction, the upper jaw support C1 and the lower jaw support C2 rotate around the artificial jaw joint 13 in a direction in which the arms C1-1 and C2-1 approach each other. Thereby, the artificial upper jaw 11 and the artificial lower jaw 12 move in the closing direction. On the other hand, when the plunger of the artificial jaw opening / closing solenoid 22 moves in the retracted direction, the upper jaw support C1 and the lower jaw support C2 rotate around the artificial jaw joint 13 in the direction in which the arms C1-1 and C2-1 move away from each other. To do. Thereby, the artificial upper jaw 11 and the artificial lower jaw 12 move in the opening direction.
When the artificial upper jaw 11 and the artificial lower jaw 12 are closed, the mouthpiece 2 of the woodwind instrument can be held as shown in FIG. In a state where the mouthpiece 2 is sandwiched, the space surrounded by the artificial upper jaw 11 and the artificial lower jaw 12 becomes a sealed space.

Reference numeral 14 denotes an artificial upper lip made of an elastic material such as rubber, and is attached to the lower part of the partition wall in front of the artificial upper jaw 11. The front shape of the artificial upper lip 14 is as shown in FIG. 2, has substantially the same width as the artificial upper jaw 11, and the upper center portion is raised in an arch shape. An insertion hole 14 a is provided at the lower center of the artificial upper lip 14. The insertion hole 14a has a shape that matches the cross-sectional shape of the mouthpiece of the woodwind instrument to be played, and the mouthpiece is inserted therein.
Reference numeral 15 denotes an artificial lower lip made of an elastic material such as rubber, and is attached to the upper part of the partition wall in front of the artificial lower jaw 12. The front shape of the artificial lower lip 15 is as shown in FIG. 2 and has substantially the same width as the artificial lower jaw 12. The upper front end portion of the artificial lower lip 15 is a contact portion 15 a protruding in the front-rear direction, and holds the mouthpiece inserted into the insertion hole 14 a together with the artificial upper lip 14.

  In FIG. 1, 16 is an artificial tongue, and 17 is a lead attached to the mouthpiece 2. A spherical body 16a made of a flexible lightweight material such as urethane foam is attached to the tip of the artificial tongue 16, and this spherical body 16a comes into contact with or separates from the tip of the lead 17 for performance. Performs the function of tongue. A rod 16b is attached to the spherical body 16a, and the rod 16b is rotatable about a fulcrum A. An artificial tongue solenoid 25 for operating the artificial tongue 16 drives the rod 25a in the left-right direction in the drawing. A long hole (not shown) is formed at the tip of the rod 25a, and the rod 16b is inserted into the long hole. When the rod 25a protrudes in the left direction in the drawing, the rod 16b rotates in the clockwise direction, so that the spherical body 16a contacts the lead 17. In this case, the force with which the spherical body 16 a comes into contact with the lead 17 can be adjusted by the force for driving the rod 25 a, that is, the energization amount of the artificial tongue solenoid 25. On the other hand, when the rod 25a is pulled in the right direction in the drawing, the rod 16b rotates counterclockwise, and the spherical body 16a moves away from the lead 17.

  Reference numeral 18 denotes an L-shaped metal lever that is embedded in the artificial lower lip 15 and is rotatable about the fulcrum B, and protrudes from the arm 18 a toward the upper end of the artificial lower lip 15 and the artificial lower lip 15 to enter the artificial oral cavity 19. The arm 18b extends to the front end, and a roller is provided at the tip of the arm 18b. Reference numeral 24 denotes an artificial lower lip solenoid for driving the artificial lower lip 15. The artificial lower lip solenoid 24 is provided with a coupling member 24a on its plunger, and the distal end portion of the coupling member sandwiches the roller at the distal end of the arm 18b. When the plunger of the artificial lower lip solenoid 24 moves up and down, the coupling member 24a also moves up and down together, thereby moving the position of the roller at the tip of the arm 18b up and down. Here, when the position of the roller rises, the metal lever 18 rotates counterclockwise around the fulcrum B, so the arm 18a pushes the upper end portion of the artificial lower lip 15 forward. On the other hand, when the roller at the tip of the arm 18b is lowered, the metal lever 18 rotates clockwise around the fulcrum B, so that the arm 18a pulls back the upper end portion of the artificial lower lip 15 backward. In this embodiment, the angle of the metal lever 18 is changed according to the performance information, and the contact position between the artificial lower lip 15 and the lead 17 is moved back and forth. For example, when a high sound is to be played, the effective vibration length of the lead 17 is shortened by rotating the metal lever 18 clockwise. On the contrary, when a low tone is to be played, the effective vibration length of the lead 17 is lengthened by rotating the metal lever 18 counterclockwise.

  Reference numeral 20 denotes a compressed air insertion nozzle, and this compressed air insertion nozzle 20 is connected to a compressed air valve 21 shown in FIG. The air valve 21 is further connected to a compressed air tank (not shown) connected to the end of the air valve 21. By causing the compressed air to flow into the artificial oral cavity 19 through the compressed air tank, the air valve 21 and the compressed air insertion nozzle 20, it is possible to create a situation where an air flow from the lungs flows to the mouthpiece 2 in human performance. It can be done.

  Reference numeral 23 denotes a small and lightweight film-like piezoelectric vibrator attached to the inner surface of the lead 17 (the surface on the inner space side of the mouthpiece) with an adhesive or the like. The piezoelectric vibrator 23 has a thin shape and is weak in mechanical characteristics, and is easily affected by the wind resonance frequency of the wind instrument. An electric signal line 26 connects the piezoelectric vibrator 23 and a power amplifier (not shown). Reference numeral 27 denotes a flange for supporting the actuator 1.

  FIG. 3 is a side sectional view of the mouthpiece 2. The piezo vibrator 23 is vibrated by the given electric signal (alternating current) and gives the vibration to the lead 17, which generates resonance of the tube and becomes a musical tone. At the same time, the compressed air inserted into the artificial oral cavity 19 also flows into the tube body through the mouthpiece 2 through the gap between the mouthpiece 2 and the lead 17 as shown by the arrow A in the figure, and the lead 17 is self-excited. Works to vibrate. In addition, the material of the lead 17 is sufficient by cutting and molding the most common crease at present, but it is preferably a plastic material from the viewpoint of durability.

  According to the configuration described above, since compressed air is added into the artificial oral cavity 19, the lead 17 performs self-excited vibration by compressed air flow in addition to vibration by an electric signal using the piezo vibrator 23. The behavior is similar to the performance of a wind instrument. At this time, the piezo vibrator 23 attached to the lead 17 is small and light, and is weak in mechanical characteristics, so that it hardly disturbs the self-excited vibration of the lead 17. Moreover, since the piezo vibrator 23 is easily affected by the tube resonance frequency of the wind instrument, the vibration is attenuated by the sound wave reflected from the tube at the non-resonant frequency, while the resonance frequency is amplified by the tube. Thus, the vibration corresponds to the resonance of the tube. Therefore, even though it is driven by an electrical signal, it behaves as if it is a real wind instrument in which the lead 17 is self-oscillating.

  Further, since the artificial tongue 19 is provided in the artificial oral cavity 19, it is possible to perform a technique for stopping the breath and the vibration of the reed 17 with tongue that is used for actual performance.

  Further, the artificial lower lip 15 is provided with an artificial lower lip solenoid 24 that moves back and forth at a position where it is in contact with the lead 17, so that the lead 17 can be effectively used depending on the pitch to be played, as in a real performance. The vibration length can be made variable, and it is possible to produce a natural sound like a real one without difficulty even though the lead 17 is electrically driven. Moreover, since the closing force of the artificial upper jaw 11 and the artificial lower jaw 12 can be adjusted by the artificial jaw opening / closing solenoid 22, the tightening pressure on the mouthpiece by the artificial upper lip 14 and the artificial lower lip 15 can be appropriately adjusted according to the performance information. it can. This makes it possible to perform a performance rich in facial expression, in which the force to bite the mouthpiece is adjusted, similar to human performance.

  In addition, since the sound is generated by actively using tube resonance in which the tube amplifies the vibration amplitude as when playing a real wind instrument, the power signal input to the piezo vibrator 23 may be small. The power amplifier device for signals may be small, light and inexpensive. In addition, since the power consumption is low, it can be easily incorporated into a mobile device that cannot use an AC power source such as a robot.

[Performance equipment]
Next, a performance device using the above-described actuator 1 will be described.
FIG. 4 is a diagram showing a schematic configuration of a performance device 100 using the actuator 1. In the figure, 3 is a woodwind instrument such as a saxophone, and 2 is a mouthpiece attached to the woodwind instrument 3. The woodwind instrument 3 may be a normal woodwind instrument and does not need to be specially processed or attached. Of course, the mouthpiece 2 may be fixed to the woodwind instrument 3.

  In FIG. 4, reference numeral 101 denotes a control unit including an arithmetic device such as a CPU (Central Processing Unit). A storage unit 102 includes a storage device such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a hard disk, and stores various programs for operating each unit of the performance device 100. The control unit 101 controls each unit of the performance device 100 by reading and executing a program stored in the storage unit 102.

  The storage unit 102 stores performance data D1 as shown in FIG. The performance data D1 is data for automatically playing music using the woodwind instrument 3, and includes a sound source signal S1, an artificial tongue control signal S2, an artificial temporomandibular joint control signal S3, an artificial lower lip control signal S4, and compressed air control. The signal S5 and the sound hole signal S6 are included. The sound source signal S1 is, for example, performance data in the MIDI (Musical Instruments Digital Interface) format, and is performance data having data indicating each note corresponding to the performance of the music. The artificial tongue control signal S2 is a signal for controlling the tongueing by the artificial tongue 16. The artificial temporomandibular joint control signal S3 is a signal for controlling the opening and closing of the artificial jaw. The artificial lower lip control signal S4 is a signal for controlling the operation of the artificial lower lip 15 to control the vibrable frequency range of the lead 17. The compressed air control signal S5 is a signal for controlling the air pressure inserted from the compressed air insertion nozzle 20. The sound hole signal S6 is a signal for controlling the opening and closing of the sound hole of the woodwind instrument 3.

  The performance data may be stored in advance in the storage unit of the performance device 100, or performance data generated by a performance data generation device to be described later may be supplied as needed.

  Reference numeral 103 denotes a sound source device, and reference numeral 104 denotes a power amplifier that drives the piezo vibrator 23 attached to the lead 17. The power amplifier 104 is connected to the sound source device 103. When the control unit 101 reads the performance data D1 from the storage unit 102, the control unit 101 supplies the sound source signal S1 to the sound source device 103, and the sound source device 103 powers the supplied signal. This is supplied to the amplifier 104. The power amplifier 104 inputs a signal to the piezo vibrator 23 in accordance with a signal supplied from the sound source device 103, and a sonic wave is generated in the woodwind instrument 3 when the piezo vibrator 23 vibrates as a vibrator.

  A compressed air control device 105 is connected to the compressed air valve 21 of the actuator 1. An air tank 106 is connected to the compressed air valve 21 of the actuator 1 through an air path P. Reference numeral 107 denotes an air compressor. When the control unit 101 reads the performance data D1 from the storage unit 102, the control unit 101 supplies a compressed air control signal S5 to the compressed air control device 105. The compressed air control device 105 opens and closes the compressed air valve 21 in accordance with a supplied signal, and adjusts the amount of air inserted from the air tank 106 by opening and closing the compressed air valve 21. It has become.

  108 is a solenoid sound hole opening / closing control device, and 109 is a sound hole opening / closing solenoid for opening / closing the sound hole of the woodwind instrument 3. The control unit 101 supplies the sound hole signal S6 of the performance data D1 to the solenoid sound hole opening / closing control device 108, and the solenoid sound hole opening / closing control device 108 supplies a drive current to the sound hole opening / closing solenoid 109 according to the supplied signal. To open and close the sound hole.

  110 is a tongue control device. The control unit 101 supplies the artificial tongue control signal S2 of the performance data D1 to the tongue control device 110, and the tongue control device 110 drives the artificial tongue solenoid 25 in accordance with the supplied signal, thereby causing the artificial tongue 16 to move. Make it work. Reference numeral 111 denotes a temporomandibular joint control device. The control unit 101 supplies the artificial temporomandibular joint control signal S3 of the performance data D1 to the temporomandibular joint control device 111. The temporomandibular joint control device 111 drives the artificial jaw opening / closing solenoid 22 according to the supplied signal to open / close the artificial jaw. Reference numeral 112 denotes a lower lip control device. The control unit 101 supplies the artificial lip control signal S4 of the performance data D1 to the lower lip control device 112. The lower lip controller 112 controls the position of the artificial lower lip 15 by driving the artificial lower lip solenoid 24 according to the supplied signal.

  The operation of the performance device 100 having the above-described configuration is as follows. When the control unit 101 reads the performance data D1 from the storage unit 102, the sound source signal S1 is sent to the sound source device 103, the artificial tongue control signal S2 is sent to the tongue control device 110, and the artificial temporomandibular joint control signal S3 is sent to the temporomandibular joint control device 111. The artificial lower lip control signal S4 is supplied to the lower lip control device 112, the compressed air control signal S5 is supplied to the compressed air control device 105, and the sound hole signal S6 is supplied to the solenoid sound hole opening / closing control device 108. Each part to which the signal is supplied performs each control in accordance with the supplied signal, whereby automatic performance using the woodwind instrument 3 is performed.

[Generation of performance data]
Next, a method for generating the performance data described above will be described.
FIG. 5 is a diagram showing a schematic configuration of the performance data generating apparatus 200. In the figure, 5 is a woodwind instrument, and 6 is a mouthpiece attached to the woodwind instrument 5. A sound hole sensor 201 detects the open / closed state of the sound hole of the woodwind instrument 5. Reference numeral 202 denotes an air flow sensor that detects an air flow and outputs a signal indicating the air flow. Reference numeral 203 denotes an air vibration sensor such as a microphone that detects air vibration and outputs a signal indicating the air vibration. A tongue position detection sensor 204 detects the position of the performer's tongue. Reference numeral 205 denotes a lower lip detection sensor that simultaneously detects the position of the player's lower lip with respect to the lead and the lead pressing force. An air flow sensor 202, an air vibration sensor 203, a tongue position detection sensor 204, and a lower lip detection sensor 205 are provided on the mouthpiece 6, and performance information is detected by these sensors.

  A sensor control device 206 receives analog signals from the above-described sound hole sensor 201, air flow sensor 202, air vibration sensor 203, tongue position detection sensor 204, and lower lip detection sensor 205, and converts them into digital signals. is there. Reference numeral 207 denotes a data conversion device that uses a previously stored function or table to arrange the format of digital signal data supplied from the sensor control device 206 and convert it into a set of performance data.

  The operation of the performance data generating apparatus 200 configured as described above is as follows. When the performer blows into the mouthpiece 6 while opening and closing the sound hole of the woodwind instrument 3, the air vibration, the air flow, the position of the performer's tongue, the position and pressing force of the performer's lower lip, The opening / closing state of the sound hole is detected by the sound hole sensor 201, the air flow sensor 202, the air vibration sensor 203, the tongue position detection sensor 204, and the lower lip detection sensor 205, respectively. The sensor control device 206 supplies signals detected by the respective sensors to the data conversion device 207, and the data conversion device 207 converts the supplied signals into performance data D1. The performance data generated in this way is supplied to the performance apparatus 100 shown in FIG. 4 so that the woodwind instrument 3 can be automatically played.

  This performance can be performed in a so-called non-real-time performance in which information on a person's performance is temporarily stored and used for an automatic performance after an appropriate amount of time. A so-called real-time performance is also possible, which is input to 100 and performed on the performance device 100 at the same time as a human performance. In this case, the player may be at the same place as the player 100, or when the transmission line is a long-distance information transmission line such as an optical fiber, it may be very remote, for example, overseas.

  It should be noted that the performance information that has been collected as performance data by the performance data generation device 200 described above can be further edited and processed as desired by inputting it as a data file to a computer and using appropriate software. If such edited and processed data is input to the performance apparatus 100 in the same manner as described above, a performance with an improved atmosphere can be realized by the edited and processed data.

[Modification]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented in various other forms. An example is shown below.
(1) In the above-described embodiments, the actuator for a single-lead woodwind instrument has been described. However, the present invention can also be applied to a double-lead woodwind instrument. The actuator used for the double-lead woodwind instrument will be described below with reference to FIGS.
FIG. 6 is a side sectional view of the actuator 7 used in the double-lead woodwind instrument, and FIG. 7 is a front view of the actuator 7. In the figure, 8 is a double-lead woodwind instrument such as oboe or bassoon. The configuration of the actuator 7 is different from the actuator 1 shown in FIG. 1 in that the woodwind instrument has two leads, a piezo vibrator is provided on each lead, and an artificial The upper lip 14 has no insertion hole 14a, and the other components are the same as those of the actuator 1 shown in FIG. Therefore, in the following description, the same components as those of the actuator 1 are denoted by the same reference numerals, and the description thereof is omitted as appropriate. The reason why the insertion hole 14a is not provided is as follows. For a double-lead instrument, two leads are sandwiched between the artificial upper lip 14 and the artificial lower lip 15, but the thickness of the two leads is so thin that the artificial upper lip 14 and the artificial lower lip 15 are not provided with an insertion hole 14a. This is because the two leads can be sandwiched without gaps by elasticity.

  Now, as shown in FIG. 6, the woodwind instrument 8 includes two leads, a lead 17a and a lead 17b. Small and lightweight piezo vibrators 23a and 23b are respectively attached to the inner surfaces of the lead 17a and the lead 17b with an adhesive or the like. The piezoelectric vibrators 23a and 23b are connected to power amplifiers (not shown) by electric signal lines 26a and 26b, respectively.

  By adopting such a configuration, the actuator 7 can cause a double-lead woodwind instrument to perform automatically. Since the sound generation principle is the same as that of the above-described embodiment, the description thereof is omitted.

(2) The method of generating performance data is not limited to the method shown in the above-described embodiment. For example, as shown in FIG. 8, the musical sound generated from the woodwind instrument 5 may be collected by the microphone 7, and the collected voice waveform may be converted into performance data by the data converter 207. In this way, when a musical tone played by a person is detected by the microphone 7 and input to the data conversion device and converted into performance data for the performance device 100, automatic performance by the performance device 100 is performed using the performance data. It becomes possible. Note that only the sound source signal for vibrating the piezo vibrator may be generated as performance data generated from the musical sound detected by the microphone 7, or, in addition to the sound source signal, the artificial tongue control signal in the above-described embodiment. An artificial temporomandibular joint control signal, an artificial lower lip control signal, and a compressed air control signal may be generated.

  Note that when performance data is generated using the performance data generation apparatus shown in FIGS. 5 and 8, both real-time performance and non-real-time performance are possible. It is also possible to play the plurality of woodwind instruments simultaneously by inputting the generated performance data to a plurality of automatic performance devices. If the pitch of the performance data is converted to n octaves or 1 / n octaves (n is an integer), for example, soprano saxophone, soprano saxophone, alto saxophone, tenor saxophone, baritone saxophone, bass saxophone etc. are played in unison simultaneously. It is also possible.

(3) In the above-described embodiment, MIDI format data is used as a sound source signal. However, the sound source signal is not limited to MIDI format data, and may be a waveform signal indicating a waveform of a musical sound. When the sound source signal is the performance sound as it is (waveform signal), the sound source device may have the function of an audio signal reproduction device such as a CD player. Then, the signal reproduced in this way may be sent to the power amplifier.

(4) Although a piezoelectric element is used as the piezoelectric element, it is of course possible to use a vibration element other than the piezoelectric element.

(5) In the above-described embodiment, compressed air is used as the compressed gas. However, the present invention is not limited to this, and any gas may be used.

(6) The metal lever 18 provided in the artificial lower lip 15 may also be provided in the artificial upper lip 14. In short, it may be provided on at least one of the upper lip and the lower lip in accordance with the musical instrument to be played and the nuance to be expressed in the performance.

It is a sectional side view of an actuator which is an embodiment of the present invention. It is a front view of the actuator of the embodiment. It is a sectional side view of the mouthpiece which concerns on the same embodiment. It is a figure which shows schematic structure of the performance apparatus which concerns on the same embodiment. It is a figure which shows schematic structure of the performance data generation apparatus of the embodiment. It is a sectional side view of an actuator which is a modification of the present invention. It is a front view of the actuator of the modification. It is a figure which shows schematic structure of the performance data generation apparatus which concerns on the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,7 ... Actuator, 2,6 ... Mouthpiece, 3, 5, 8 ... Woodwind instrument, 7 ... Microphone, 11 ... Artificial maxilla, 12 ... Artificial mandible, 13 ... Artificial jaw joint, 14 ... Artificial upper lip, 15 ... Artificial upper lip Lower lip, 16 ... artificial tongue, 16a ... spherical body, 17, 17a, 17b ... lead, 18 ... metal lever, 19 ... artificial oral cavity, 20 ... compressed air insertion nozzle, 21 ... compressed air valve, 22 ... artificial jaw opening / closing Solenoid, 23, 23a, 23b ... Piezo vibrator, 24 ... Artificial lower lip solenoid, 25 ... Artificial tongue solenoid, 26, 26a, 26b ... Electric signal line, 27 ... Flange, 100 ... Performance device, 101 ... Control unit DESCRIPTION OF SYMBOLS 102 ... Memory | storage part 103 ... Sound source device 104 ... Power amplifier 105 ... Compressed air control apparatus 106 ... Air tank 107 ... Air compressor 108 ... Solenoid Hole opening / closing control device, 109 ... Sound hole opening / closing solenoid, 110 ... tongue control device, 111 ... temporomandibular joint control device, 112 ... lower lip control device, 200 ... performance data generating device, 201 ... sound hole sensor, 202 ... air flow Sensor 203, air vibration sensor 204, tongue position detection sensor, 205 lower lip detection sensor, 206 sensor control device, 207 data conversion device.

Claims (8)

A vibrator that vibrates a lead attached to a mouthpiece of a woodwind instrument according to an excitation signal;
An artificial oral cavity having a pair of opening and closing walls that can be opened and closed with respect to each other;
A pair of artificial lips that are formed of a flexible member and are provided at opposing edges of the pair of opening and closing walls, and sandwich the lead when the opening and closing walls are closed;
Provided through the artificial oral cavity, and a pressurized gas introduction hole into which pressurized gas is introduced,
An actuator for playing a woodwind instrument, wherein the artificial oral cavity is configured to be a sealed space in a portion other than the lead when the opening / closing wall is closed. A contact portion configured to be movable and capable of contacting a tip portion of the lead in a state of being sandwiched between the pair of artificial lips;
The woodwind instrument actuator according to claim 1, further comprising: a tongue drive unit that controls a position of the contact unit according to a tongue drive signal.   3. The woodwind instrument playing actuator according to claim 1, further comprising lip driving means provided on at least one of the pair of artificial lips and changing a position of the artificial lip in accordance with a lip driving signal.   The woodwind instrument playing actuator according to any one of claims 1 to 3, wherein the vibrator is constituted by a piezoelectric element.   5. The woodwind instrument playing actuator according to claim 4, wherein the piezoelectric element is formed in a film shape. A woodwind instrument playing actuator according to any one of claims 1 to 5,
A woodwind instrument playing device comprising: excitation signal generating means for generating the excitation signal based on performance data indicating the content of a musical sound. A woodwind instrument playing actuator according to any one of claims 1 to 5,
A woodwind instrument playing device, comprising: a pressurized gas control means for controlling an introduction amount of the pressurized gas introduced into the pressurized gas introduction hole based on performance data indicating the content of a musical sound. A performance operator driving means for driving the performance operator of the woodwind instrument based on the drive signal;
The woodwind instrument playing device according to claim 6, further comprising drive signal generating means for generating the drive signal based on a pitch indicated by the performance data.

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