A tactile sense presentation device that includes a film member which deforms in a planar direction when a voltage is applied thereto, a diaphragm fixed to the film member in a state where a bending stress is applied to the diaphragm, a touch detector which detects a touch operation, and a voltage driver which applies a drive signal to the film member when the touch detector detects the touch operation.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.

A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.

The embodiments of this disclosure disclose a microphone, comprising: a support member, a plurality of beam structures, and a housing. One end of each beam structure of the plurality of beam structures is arranged on the support member. The plurality of beam structures vibrate along a first direction. At least a portion of the plurality of beam structures are provided with a piezoelectric transducer. The piezoelectric transducer is configured to generate an electrical signal in response to the vibration of the plurality of beam structures. The housing is configured to accommodate the support member and the beam structures. The housing forms a first cavity and a second cavity along the first direction and located on both sides of the plurality of beam structures. The housing is provided with a first sound guiding hole and a second sound guiding hole.

The embodiments of this disclosure disclose a microphone, comprising: a support member, a plurality of beam structures, and a housing. One end of each beam structure of the plurality of beam structures is arranged on the support member. The plurality of beam structures vibrate along a first direction. At least a portion of the plurality of beam structures are provided with a piezoelectric transducer. The piezoelectric transducer is configured to generate an electrical signal in response to the vibration of the plurality of beam structures. The housing is configured to accommodate the support member and the beam structures. The housing forms a first cavity and a second cavity along the first direction and located on both sides of the plurality of beam structures. The housing is provided with a first sound guiding hole and a second sound guiding hole.