JP4665174B2 - Performance equipment - Google Patents

Description

  The present invention relates to a performance device, and more particularly to a performance device that performs a performance by outputting a sound by contact with a human body using an electrical signal transmitted through the human body.

  Conventionally, performance has been performed using various musical instruments, but recently, digital musical instruments using MIDI (Musical Instrument Digital Interface) sound sources have been developed, and performance forms different from conventional musical instruments are possible. ing.

  In particular, such a digital musical instrument uses a sensor that can be switched on and off, and outputs a sound from a speaker based on the on / off switching of the sensor. A device that plays music in conjunction with the movement of the body by arranging sensors on the shoulders, enabling the performance by switching on and off of each sensor by the movement of the wrist, elbow, and shoulder Has also been proposed (see, for example, Patent Document 1).

  The inventors are always dissatisfied with the fact that music is a person-to-person communication tool and that it is divided between the performer and the audience. We have repeatedly investigated whether we can provide performance tools that we have been involved in, and have developed a performance device that can output sound using the skin contact between the performer and the audience by using in-body communication.

  That is, this performance device uses a brass first ring to be attached to the performer's finger and a brass second ring to be attached to the audience's finger, and the first ring and the second ring are used. Connected to the first ring, for example, the lead connected to the first ring was connected to the power supply, and the lead connected to the second ring became conductive between the first ring and the second ring. This is connected to the input part of the sensor that detects this, and the sensor detects the continuity between the first ring and the second ring.

  Then, the performance device outputs a control signal for performing on / off switching based on conduction / non-conduction between the first ring and the second ring from the sensor, and inputs the on / off signal to the MIDI sound source. Then, a predetermined sound is output from a speaker connected to the MIDI sound source based on a control signal to enable performance.

Here, in the performance device, the performer and the audience are conductors that connect the first ring and the second ring, and the performer wearing the first ring removes the second ring. When the audience wearing the second ring touches the audience wearing the second ring, or when the audience wearing the first ring touches the performer wearing the first ring, the first ring and the second ring become conductive. In particular, a performance device that functions as a drum is proposed by attaching a second ring to each of a plurality of audiences, and assigning the sound of each instrument of the drum to each audience, for example. (For example, refer nonpatent literature 1.).
Japanese Patent Laid-Open No. 10-097244 Baba Tetsugo, Tomimatsu Kiyoshi, “Design and Creation of Electronic Musical Instruments that Touch People: Freqtric Drums”, Japanese Society for the Science of Design, Design Studies, BULLETIN OF JSSD 2005, pp. 96-97

  However, the performance device developed by the present inventors still has the following problems. In other words, the performance device only detects the energization state between the first ring and the second ring and performs on / off control. There was a problem that the width was limited.

  The present inventors have conducted research and development to enable the change in sound intensity and have come to achieve the present invention.

  In the performance device of the present invention, the first electrode in contact with the first human body, the second electrode in contact with the second human body, and the first electrode by contacting the first human body and the second human body. An energization detecting unit for detecting that the energized state between the first electrode and the second electrode is energized and outputting a predetermined signal; and an audio for outputting a predetermined audio signal based on the signal output from the energization detecting unit A performance device including a signal output unit and a speaker that outputs sound based on an audio signal output from the audio signal output unit, wherein the energization detection unit includes the first human body and / or the second human body. Having noise removing means for preventing erroneous detection of the energized state due to noise generated based on electrical connection with the ground, adjusting the output signal level according to the energized amount in the energized state, and outputting, Output from the speaker It was decided to adjust the size.

Furthermore, the following points are also characteristic. That is,
(1) The noise removing means includes a light emitting diode and a phototransistor, and converts an electrical signal into an optical signal with the light emitting diode, and removes noise by converting the optical signal into an electrical signal with the phototransistor.
(2) The energization detection unit includes a transmitter and a receiver, and transmits a signal to be output upon detection of the energization state from the transmitter to the receiver, and outputs a signal to be input to the audio signal output unit from the receiver. At the same time, the transmitter is disposed on an insulating support equipped with a first electrode and a second electrode made of conductive handles.
(3) The support has a plurality of handles arranged at predetermined intervals along the outer peripheral edge, one of which is the first electrode, all the other handles are the second electrodes, and the second electrode And a switch for changing the type of sound output from the speaker.
(4) The support is provided with a switch for changing the type of sound output from the speaker in proximity to each of the first electrodes.
(5) The receiver is disposed on a holding table on which the support is detachably mounted.
(6) The energization detection unit includes a transmitter and a receiver. The transmitter is built in the first base including the first electrode, and the second base including the second electrode has a predetermined electric power. A signal output device that outputs a signal from the second electrode is built in, and the transmitter detects an energized state by detecting an electric signal output from the signal output device, and outputs a signal based on the detection of the energized state. Is transmitted from the transmitter to the receiver, and the signal input to the audio signal output unit is output from the receiver.

  According to the first aspect of the present invention, the energization detection unit is configured to prevent noise from being erroneously detected due to noise generated based on electrical connection between the first human body and / or the second human body. Having removal means, adjusting the level of the output signal according to the energization amount in the energized state and outputting it, the volume of the sound output from the speaker can be adjusted, and the range of expression in the performance is expanded be able to. In particular, the present invention can increase the dynamic range by providing the noise removing means, and use a region that changes in direct proportion to the rate of change of the energization amount in the energized state in the level adjustment of the output signal. Since it can be adjusted, it is possible to easily output the sound desired by the performer.

  According to a second aspect of the present invention, in the performance device according to the first aspect, the noise removing means includes a light emitting diode and a phototransistor, and the light emitting diode converts an electrical signal into an optical signal, and the optical signal is converted into an optical signal. By removing noise by converting it into an electrical signal with a phototransistor, only specific noise can be removed very easily.

  According to a third aspect of the present invention, in the performance device according to the first or second aspect, the energization detecting unit includes a transmitter and a receiver, and a signal output upon detection of the energized state is transmitted from the transmitter. Transmitting to the receiver and outputting a signal to be input to the audio signal output unit from the receiver, the transmitter is provided with an insulating support equipped with a first electrode and a second electrode made of conductive handles. By arranging in the body, the circuit length of the closed circuit for detecting the energized state can be shortened, and the generation of noise can be easily suppressed. Furthermore, the energization detection unit composed of the support body on which the first electrode and the second electrode are mounted can be made wireless, and the degree of freedom of performance can be improved.

  According to a fourth aspect of the present invention, in the performance device according to the third aspect, the support has a plurality of handles arranged at predetermined intervals along the outer peripheral edge, and any one of the handles serves as the first electrode, and the other. All the handles are made the second electrode, and a switch for changing the type of sound output from the speaker is provided close to each of the second electrodes, so that a plurality of types of sounds can be output. In addition, the degree of freedom of performance can be improved by being easily adjustable.

  According to a fifth aspect of the present invention, in the performance device according to the third or fourth aspect, the support is switched to change the type of sound output from the speaker in proximity to the first electrode, respectively. By providing the switch for use, it is possible to output a plurality of types of sounds and to easily adjust the sound, thereby improving the degree of freedom of performance.

  According to the sixth aspect of the present invention, in the performance device according to any one of the second to fourth aspects, the receiver is disposed on the holding base on which the support is detachably mounted, thereby detecting the energization. The wiring for connecting the audio signal output unit, the audio signal output unit, and the speaker can be arranged at a predetermined position without making the lines conspicuous, and the aesthetics of the performance device can be improved.

  According to the seventh aspect of the present invention, in the performance device according to the first aspect, the energization detection unit includes a transmitter and a receiver, and the transmitter is built in the first base including the first electrode. A signal output device for outputting a predetermined electric signal from the second electrode is built in the second base body having the second electrode, and the transmitter is energized by detecting the electric signal output from the signal output device. In order to detect the energized state by detecting a state and transmitting a signal to be output based on the detection of the energized state from the transmitter to the receiver and outputting a signal input to the audio signal output unit from the receiver In addition to being able to shorten the length of the path of the music, not only can it be easy to suppress the occurrence of noise, but also to improve the freedom of performance by not being restricted by the actions of the performer and audience Can do.

  The performance device according to the present invention is configured such that the first electrode in contact with the first human body, the second electrode in contact with the second human body, and the first human body and the second human body are in skin contact with each other. An energization detection unit that detects that the energization state between the electrode and the second electrode is energized and outputs a predetermined signal, and outputs a predetermined audio signal based on the signal output from the energization detection unit The performance device includes an audio signal output unit and a speaker that outputs sound based on the audio signal output from the audio signal output unit. In particular, the energization detection unit includes the first human body and / or the first human body. By providing a noise removing means for preventing erroneous detection of the energized state due to noise generated based on electrical connection with the ground of the human body, the level of the signal output from the energization detecting unit is energized in the energized state. According to quantity And outputs the integer, it is those that allow adjusting the magnitude of the sound to be output from the speaker.

  Thus, by making it possible to adjust the volume of the sound output from the speaker, the performer can output the desired sound and perform a performance with rich expressive power.

  Furthermore, since the noise removal process is performed by the noise removal means in the energization detection unit, the dynamic range can be increased and the level adjustment of the output signal is directly proportional to the rate of change of the energization amount in the energized state. Therefore, it is possible to easily output a sound desired by the performer.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram of the performance device of the present embodiment.

  The performance device of the present embodiment includes an electrode board 10 provided with a plurality of electrodes, a holding base 20 on which the electrode board 10 is placed when the electrode board 10 is not used, and detection by the electrode board 10 as described later. The MIDI sound source 30 is an audio signal output unit that outputs a predetermined audio signal based on the received signal, and a speaker 40 that outputs sound based on the audio signal output from the MIDI sound source 30.

  In this embodiment, the electrode board 10 is composed of a disk-shaped support 11 formed of an insulating material. In this embodiment, as shown in FIGS. The first concave portion 12a, the second concave portion 12b, the third concave portion 12c, and the fourth concave portion 12d are provided along the outer peripheral edge of the support 11 at equal intervals. Each of the four recesses 12a to 12d is provided with a rod-shaped first electrode 13a, a second electrode 13b, a third electrode 13c, and a fourth electrode 13d that are arranged substantially along the outer peripheral edge of the support 11, respectively. The first to fourth electrodes 13a to 13d are used as handles.

  In the present embodiment, the support 11 is made of wood, and looks like a musical instrument in terms of appearance and feel.

  As shown in FIGS. 2 to 4, the first to fourth electrodes 13 a to 13 d are provided with connecting arms f formed by being bent toward the center direction of the support 11 at both ends in this embodiment. The distal ends of the connecting arms f are fixedly connected to the support 11 using wood screws or the like, and the first to fourth electrodes 13a to 13d are mounted on the support 11. Note that the first to fourth electrodes 13a to 13d do not necessarily have to be bent at both ends to be U-shaped, and rod-shaped first to fourth electrodes are installed on the portions where the first to fourth recesses 12a to d are formed. You may arrange | position in the shape.

  In this embodiment, the 1st-4th electrodes 13a-d are made from stainless steel, and while sufficient electroconductivity is acquired, it is hard to produce rust and makes maintenance easy. Moreover, in this embodiment, although the four electrodes of the 1st-4th electrodes 13a-d are provided, two electrodes may be sufficient, three may be sufficient, and it is five or more. There may be.

  FIG. 5 is a circuit diagram showing a schematic circuit configuration of the performance device of the present embodiment. For convenience of explanation, the first electrode 13a and the second electrode 13b provided on the support 11 constituting the electrode board 10 are shown. An energization detecting circuit 15 for detecting that the energized state between the first electrode 13a and the second electrode 13b is provided on the back surface of the support 11 constituting the electrode board 10; A transmitter 16 is provided for wirelessly communicating a signal to be output based on detection of the energization state by the energization detection circuit 15.

  3 and 4, reference numeral 17 denotes a rectangular circuit box containing the energization detection circuit 15 and the transmitter 16, 18 denotes a drive power supply for supplying drive power to the energization detection circuit 15, and 19 denotes A transmitting antenna connected to the transmitter 16. The drive power supply 18 is composed of a dry battery.

  In the energization detection circuit 15, a first resistor r1 having one end connected to a reference voltage source of 5V generated from the drive power supply 18, a light emitting diode LED connected to the other end of the first resistor r1, and the light emitting diode LED A transistor Tr is connected to the other end of the transistor Tr and the emitter is grounded. A second electrode 13b is connected to the base of the transistor Tr, and the second electrode 13b becomes conductive as will be described later. One electrode 13a, a second resistor r2 having one end connected to the first electrode 13a, a variable resistor VR for adjustment connected to the other end of the second resistor r2, and a light emitting diode LED A phototransistor PT that detects light emission by energization is provided, and one end of the phototransistor PT is connected to a reference voltage source via a third resistor r3, and one end of the phototransistor PT is grounded. The other end of the variable resistor VR connected to the second resistor r2 is connected to a reference voltage source.

  Accordingly, when the performer P holds the first electrode 13a with one hand and one of the audience Q holds the second electrode 13b with one hand, the performer P touches the audience Q or the audience Q touches the performer P. The transistor Tr is energized by energizing the base current of the transistor Tr, and the light emitting diode LED can emit light with a predetermined light amount according to the energized state of the transistor Tr.

  As the light emitting diode LED emits light, the phototransistor PT becomes energized according to the light emitting amount of the light emitting diode LED, and the potential between the phototransistor PT and the third resistor r3 becomes a predetermined potential, and this potential is output. A first signal S1 as a signal is input to the microcomputer PIC.

  In this way, the electrical signal generated when the first electrode 13a and the second electrode 13b become conductive through the performer P and the audience Q is once converted into an optical signal by the light emitting diode LED, and this optical signal is converted into the optical signal. By converting it into an electrical signal by the phototransistor PT, noise generated when the audience Q connected to the second electrode 13b makes electrical contact with the ground, or the player P connected to the first electrode 13a Noise generated by electrical contact with the ground can be removed, and the influence of noise can be eliminated.

  That is, noise generated when the audience Q connected to the second electrode 13b is in electrical contact with the ground, or generated by the player P connected to the first electrode 13a being in electrical contact with the ground. The noise that occurs is an extremely short-time conduction state due to momentary contact with the ground. Therefore, the response speed of the light-emitting diode LED and the phototransistor PT cannot respond in such a short-time conduction state. Is being removed. That is, the light emitting diode LED and the phototransistor PT are noise removing means, and instead of using the single light emitting diode LED and the phototransistor PT, a photocoupler may be used.

  In particular, by using such optical noise removing means, proper detection of the conduction state between the first electrode 13a and the second electrode 13b can be instantaneously detected, while noise can be reliably removed. It can be carried out.

  The microcomputer PIC inputs the second signal S2 generated according to the voltage value of the input first signal S1 to the transmitter 16, and the transmitter 16 receives the radio signal transmitted from the transmitter 16. The second signal S2 is transmitted to the set receiver 21.

  The receiver 21 is mounted on the holding table 20, and the receiver 21 receives the second signal S2 transmitted from the transmitter 16, and generates a third signal S3 corresponding to the received second signal S2. Output. In this manner, the energization detection circuit 15 that detects that the first electrode 13a and the second electrode 13b are in a conductive state and outputs the third signal S3, the transmitter 16 and the receiver 21 detect the energization. Part.

  The third signal S3 output from the receiver 21 is input to the MIDI sound source 30, and the MIDI sound source 30 generates and outputs a predetermined audio signal S4 based on the third signal S3. The audio signal S4 is output from the speaker 40. To output a predetermined sound.

  In particular, in the performance device of the present embodiment, the base current supplied to the transistor Tr can be adjusted according to the energization state of the player P and the audience Q, and the light emission amount of the light emitting diode LED can be adjusted.

  The energized state of the performer P and the audience Q is such that when the contact area of the skin contact between the performer P and the audience Q is large, the contact resistance becomes small and the base current becomes large, and the contact area between the performer P and the audience Q When is small, the contact resistance becomes large and the base current becomes small.

  That is, for example, when the player P touches the audience Q with the palm of the hand or touches it strongly like hitting it, a large base current is generated. Small base current.

  When the base current is large, a large current flows through the light-emitting diode LED, the light-emitting diode LED emits strongly, a large potential is generated in the phototransistor PT, and the first signal S1 having a large voltage value is input to the microcomputer PIC. The On the other hand, when the base current is small, a small current flows through the light emitting diode LED, the light emitting diode LED emits light weakly, a small potential is generated in the phototransistor PT, and the first signal S1 having a small voltage value is generated in the microcomputer PIC. Entered.

  In this way, in the performance device, the second signal S2 and the third signal S3 are signals according to the magnitude of the first signal S1, for example, the player P touches the audience Q with his palm or touches it as if hitting it. In this case, a loud sound is output from the speaker 40, and when the performer P touches the audience Q with a fingertip or slightly touches, a small sound can be output from the speaker 40, and a sound adjusted to a large or small level is output. By making it possible, it is possible to easily output the sound desired by the player P.

  In particular, since the light-emitting diode LED and the phototransistor PT constitute a noise removing means, the current-carrying detection circuit 15 is not easily affected by noise, so that the region where the output of the transistor Tr changes in direct proportion to the base current Therefore, it is possible to easily output a sound desired by the player P.

  By the way, in this embodiment, the first resistor r1 is 10Ω, the second resistor r2 is 220Ω, the third resistor r3 is 1.2kΩ, and the variable resistor VR is 10KΩ. MI0202CL is used.

  FIG. 5 shows the relationship between the first electrode 13a and the second electrode 13b as described above, but the third electrode 13c and the fourth electrode 13d are connected to the same circuit as that connected to the second electrode 13b. However, they are arranged in parallel with each other, and detailed description thereof is omitted. 3 and 4, L1 is a first conductor connected to the first electrode 13a, L2 is a second conductor connected to the second electrode 13b, L3 is a third conductor connected to the third electrode 13c, and L4 is a fourth conductor. It is the 4th conducting wire connected to electrode 13d, Comprising: Each electrode 13a-d is connected to the circuit in circuit box 17 via these 1st-4th conducting wires L1-4.

  3 and 4, g is a power switch, and h is an adjustment knob for adjusting the variable resistor VR in FIG. By adjusting the variable resistor VR with the adjustment knob h, the detection sensitivity of the conduction state between the first electrode 13a and the second to fourth electrodes 13b to d is adjusted.

  Further, in FIGS. 3 to 5, k is a changeover switch for selecting the type of sound output from the speaker 40 when the first electrode 13 a and the second to fourth electrodes 13 b to d are in a conductive state. Thus, the signal output from the microcomputer PIC is adjusted by the adjustment by the changeover switch k, and a predetermined sound can be output. Specifically, one of the percussion instruments can be selected, and the selection state by the changeover switch k is displayed on the liquid crystal display unit 14 provided at the center of the support 11 as shown in FIG.

  The change-over switch k is a wall surface of the rectangular circuit box 17 provided in a projecting manner on the back surface of the support 11, and in particular provided on the wall surfaces facing the second to fourth electrodes 13 b to d, respectively. Adjustment by the changeover switch k can be easily performed by arranging the four electrodes 13b to 13d close to each other.

  As another embodiment, as shown in FIG. 6, a first mode selection button m1, a second mode selection button m2, and a third mode selection are provided at positions close to the first electrode 13a on the surface of the support 11. A relatively small number of buttons m3 are provided so that the modes can be switched by the first to third mode selection buttons m1 to m3 and the types of musical instruments assigned to the second to fourth electrodes 13b to d can be switched by mode switching. Various types of sounds can be output with the electrodes, and variations in performance can be increased.

  In particular, the switch for switching composed of the first to third mode selection buttons m1 to m3 is provided close to the first electrode 13a, so that the player P can operate the first to third mode selection buttons m1 to m3. It can be done easily.

  In the performance device according to the present embodiment, an energization detection unit that detects a conduction state between the first electrode 13a and the second electrode 13b, between the first electrode 13a and the third electrode 13c, and between the first electrode 13a and the fourth electrode 13d. By incorporating the transmitter 16 and the receiver 21 together with the energization detection circuit 15, the support 11 provided with the first to fourth electrodes 13a to 13d can be made wireless, and the degree of freedom of performance is improved. Can be improved.

  Particularly, when the electrode board 10 is not used, the receiver 21 is made inconspicuous by incorporating the electrode board 10 in a holding base 20 on which the electrode board 10 is detachably hung as shown in FIG. And the appearance as a musical instrument can be improved.

  Moreover, in the electrode board 10, since the energization detection circuit 15 is provided on the back surface of the support 11 provided with a plurality of electrodes, the energization detection circuit 15 can be brought close to each electrode 13a-d. The length of the wiring in the circuit for detecting the state can be shortened, and the generation of noise can be easily suppressed.

  As another embodiment, instead of using the electrode board 10 described above, an electrode is provided on a base that can be worn by the performer and the audience, and the performer and the audience wearing the base each have skin contact. Sound may be output.

  Specifically, the base on which the electrodes are provided is a ring that can be tightly attached to the finger, a watch or a bracelet that can be closely attached to the wrist, thereby improving the freedom of action of the performer and the audience. , The degree of freedom of performance can be improved. Note that the base body does not necessarily have a ring shape, and the base body may be closely attached to the human body with an appropriate sheet-shaped sealing material.

  FIG. 8 shows an embodiment in the case where the base is a ring, and this performance apparatus has a first base 51 worn by a player P ′ and a second base 52 worn by an audience Q ′. The second base 52 has a built-in signal output device for outputting a predetermined reference electrical signal, and the first base 51 detects a reference electrical signal transmitted from the second base 52 by in-vivo communication (see FIG. And a transmitter (not shown) that wirelessly communicates a detection signal generated based on the detection of the reference electrical signal by the detection circuit, and the detection signal transmitted from the transmitter is transmitted to the MIDI sound source 30. The audio signal is generated by inputting a detection signal to the MIDI sound source 30, and the audio signal is input to the speaker 40 to output a predetermined sound.

  In the signal output device, for example, a reference electrical signal having a pulse wave with a predetermined duty ratio is output from an electrode (not shown) in contact with the human body of the audience Q ′. The reference electrical signal is not limited to a pulse wave, and may be a signal having an appropriate waveform.

  The detection circuit receives a reference electrical signal transmitted from the audience Q ′ to the performer P ′ by the human body communication by the skin contact between the performer P ′ and the audience Q ′ using an electrode provided on the first base 51. It is detected. At this time, the detection circuit also detects the input level of the reference electrical signal corresponding to the contact resistance of skin contact. Further, the detection circuit is provided with a noise removing means composed of a photocoupler (not shown) to remove noise generated based on the electrical connection between the performer P ′ or the audience Q ′ and the ground. .

  The transmitter transmits the detection signal output from the detection circuit to the receiver 53. Here, the detection signal is a signal including information for identifying the detected audience Q ′ and information on the input level of the reference electrical signal.

  The receiver 53 receives the detection signal transmitted from the transmitter and inputs it to the MIDI sound source 30. Here, the receiver 53 adjusts which instrument's sound the output based on the received detection signal is output to, and converts it into a signal including the instrument information and inputs it to the MIDI sound source 30.

  Therefore, in the performance device, a predetermined sound can be output from the speaker 40 when the performer P ′ touches the audience Q ′, or the audience Q ′ touches the performer P ′, and the magnitude of the sound output depending on the contact state Is adjusted so that the sound desired by the player P ′ can be output, and a performance with rich expressiveness can be performed.

  In addition, the first base 51 and the second base 52 have electrodes that are in contact with the human body and are attached to the human body, and the detection signals are transmitted by radio signals, thereby making the first base 51 and the second base 52 wireless. It is possible to increase the degree of freedom of the actions of the performer P ′ and the audience Q ′, and it is possible to perform more varied performances.

  Here, not only one second base 52 but also a plurality of second bases 52 can be output by attaching to a plurality of audiences.

  In the present embodiment, a transmitter is provided on the first base 51 worn by the player P ′, and a signal output device is provided on the second base 52 worn by the audience Q ′. A signal output device may be provided on the first base 51, and a transmitter may be provided on the second base 52 to which the audience Q 'is attached.

  In the above-described embodiment, for the sake of convenience of explanation, the explanation is made on the assumption that one player and one or more audiences use it. However, a plurality of players corresponding to each sound are used to detect energization. You may perform by touching the performer or one audience.

It is the schematic of the performance apparatus concerning embodiment of this invention. It is a top view of an electrode board. It is a rear view of an electrode board. It is a back perspective view of an electrode board. 1 is a circuit diagram showing a schematic circuit configuration of a performance device according to an embodiment of the present invention. It is a perspective view of the electrode board of other embodiments. It is explanatory drawing of the electrode board of a non-use state. It is the schematic of the performance apparatus concerning other embodiment of this invention.

Explanation of symbols

10 Electrode board
11 Support
12a First recess
12b Second recess
12c Third recess
12d 4th recess
13a First electrode
13b Second electrode
13c Third electrode
13d 4th electrode
15 Energization detection circuit
16 Transmitter
17 Circuit box
18 Drive power supply
19 Transmitting antenna
20 Holding stand
21 Receiver
30 MIDI sound source
40 Speaker
L1 first conductor
L2 second conductor
L3 Third conductor
L4 4th conductor f Connecting arm g Power switch h Adjustment knob k Changeover switch

Claims (7)

A first electrode in contact with the first human body;
A second electrode in contact with the second human body;
Energization detection for detecting that the first human body and the second human body are in contact with each other and the first electrode and the second electrode are energized and outputting a predetermined signal. And
An audio signal output unit that outputs a predetermined audio signal based on the signal output from the energization detection unit;
A performance device including a speaker that outputs sound based on the audio signal output from the audio signal output unit,
The energization detection unit includes noise removing means for preventing erroneous detection of the energization state due to noise generated based on electrical connection with the ground of the first human body and / or the second human body, A performance device that adjusts and outputs the level of the signal to be output according to the energization amount in the energization state, and adjusts the volume of sound output from the speaker.   The noise removing means includes a light emitting diode and a phototransistor, and converts the electrical signal into an optical signal with the light emitting diode and removes the noise by converting the optical signal into an electrical signal with the phototransistor. The performance device according to claim 1. The energization detection unit includes a transmitter and a receiver, and transmits a signal to be output upon detection of the energization state from the transmitter to the receiver, and a signal to be input from the receiver to the audio signal output unit. As well as output
3. The transmitter according to claim 1, wherein the transmitter is disposed on an insulating support body on which the first electrode and the second electrode configured by a conductive handle are mounted. 4. Performance device.   The support has a plurality of handles arranged at predetermined intervals along an outer peripheral edge, and any one of the handles serves as the first electrode, all the other handles serve as the second electrode, and the first 4. The performance device according to claim 3, further comprising a switch for changing the type of sound output from the speaker, in proximity to each of the two electrodes.   5. The performance according to claim 3, wherein the support is provided with a switch for changing a type of sound output from the speaker in proximity to each of the first electrodes. 6. apparatus.   The performance device according to any one of claims 3 to 5, wherein the receiver is arranged on a holding table to which the support body is detachably mounted. The energization detection unit includes a transmitter and a receiver. The transmitter is built in a first base including the first electrode, and a second base including the second electrode includes a predetermined Incorporating a signal output device that outputs an electrical signal from the second electrode,
The transmitter detects the energization state by detecting the electrical signal output from the signal output device, and transmits a signal to be output based on the detection of the energization state from the transmitter to the receiver. 2. The performance apparatus according to claim 1, wherein a signal input from the receiver to the audio signal output unit is output.

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