A bone conduction microphone includes a housing having an opening, a microphone pad, an element support member, a piezoelectric element, and a drive plate. The microphone pad is formed in a bottomed tubular shape having a bottom portion disposed outward and a tubular portion with an outer circumference fixed to an inner circumference of the opening. The element support member has an outer circumference fixed to an inner circumference of the tubular portion, and a support portion projecting toward the bottom portion. The piezoelectric element is in a plate shape with a peripheral edge of one surface fixed to the support portion and picks up vibration. The drive plate has a diaphragm part fixed to an inward surface of the bottom portion, and the diaphragm part is provided at a center with a protrusion fixed to an element central portion on another surface of the piezoelectric element.

A throat headset system includes an element configured to be arranged at least partially around a user's neck, at least one microphone being connected to the element and configured to be in contact with a user's throat or neck skin when the headset is worn and connected wireless or by cable to the microphone and configured to be connected to a communication device, in a wireless manner or via a cable, and at least one earphone connected to the cable or in a wireless manner to a communication unit. The microphone is a microphone of the type that does not require power or electric energy of a power source for detecting sound waves.

A throat headset system includes an element configured to be arranged at least partially around a user's neck, at least one microphone being connected to the element and configured to be in contact with a user's throat or neck skin when the headset is worn and connected wireless or by cable to the microphone and configured to be connected to a communication device, in a wireless manner or via a cable, and at least one earphone connected to the cable or in a wireless manner to a communication unit. The microphone is a microphone of the type that does not require power or electric energy of a power source for detecting sound waves.

A bone conduction headset includes a support member having a U-shape, a pair of bone conduction speakers respectively provided to a first end of the support member and a second end of the support member, the second end being opposite to the first end, a microphone coupled to the first end, and a mute switch provided to either the first end or the second end, and configured to perform a control to lower volume on the pair of bone conduction speakers.

A bone conduction headset includes a support member having a U-shape, a pair of bone conduction speakers respectively provided to a first end of the support member and a second end of the support member, the second end being opposite to the first end, a microphone coupled to the first end, and a mute switch provided to either the first end or the second end, and configured to perform a control to lower volume on the pair of bone conduction speakers.

Described is a voice generation system. The voice generation system comprises a housing comprising a first opening and a second opening. The housing defines an air passage between the first opening and the second opening. The voice generation system comprises a moveable member located within the housing. The moveable member is configured to vibrate in response to air flowing in the air passage. The voice generation system comprises a transducer module configured to convert vibrations of the moveable member into an electrical signal. The voice generation system comprises a speaker module configured to convert the electrical signal into sound and to output sound into the oral cavity of a user. The voice generation system is configured such that during use, the air pressure at or near the second opening corresponds to an air pressure in the oral cavity of the user.

An apparatus is described which comprises the following: (a) a housing configured to be carried in an ear, (b) a motion sensor unit for acquiring motion data, (c) a physiological sensor unit for acquiring physiological data, (d) a data processing unit configured to generate performance data based on the motion data and/or the physiological data, (e) a signal processing unit configured to generate an audio signal based on the generated performance data, and (f) a loudspeaker for outputting the generated audio signal, wherein the motion sensor unit, the physiological sensor unit, the loudspeaker, the data processing unit, and the signal processing unit are incorporated in the housing. Furthermore, a system, a method and a use is described.

A tunable contact microphone is fabricated from nanometer size piezoelectric materials. The piezoelectric nanostructures are deposited on a flexible substrate or tunable resonant backplane. The backplane can be designed to vibrate at fundamental harmonic or sub-harmonic frequencies from 10 Hz to 20 KHz, corresponding to vibration frequencies of the human cranium. The backplane can be attached to a band or other material that will facilitate the attachment to the forehead, behind the ear or throat, with a preferred location being the forehead. When a person speaks, the backplane vibrates causing the nanostructures to generate electricity. The electrical signals are sent to an impedance matching preamplifier. The signal can then be sent to a communications system or fed into the microphone input of a communication system.

A tunable contact microphone is fabricated from nanometer size piezoelectric materials. The piezoelectric nanostructures are deposited on a flexible substrate or tunable resonant backplane. The backplane can be designed to vibrate at fundamental harmonic or sub-harmonic frequencies from 10 Hz to 20 KHz, corresponding to vibration frequencies of the human cranium. The backplane can be attached to a band or other material that will facilitate the attachment to the forehead, behind the ear or throat, with a preferred location being the forehead. When a person speaks, the backplane vibrates causing the nanostructures to generate electricity. The electrical signals are sent to an impedance matching preamplifier. The signal can then be sent to a communications system or fed into the microphone input of a communication system.

Proposed is a vibration sensor including: a substrate; a first electrode positioned on the substrate; a support positioned on the first electrode and including a cylindrical hollow hole; and a diaphragm including a thin film positioned on the support and a second electrode positioned on the thin film. According to the present disclosure, it is possible to manufacture a skin-attachable vibration sensor that is attached to a user's neck to detect vibration acceleration in user's neck skin, thus exhibiting a uniform and high sensitivity to a user's voice over the frequency range of the human voice. In addition, the sensor sensitively detects a user's voice through neck skin vibrations rather than through air, thus being free from the influence of external noise or wind, and can recognize the user's voice even in a situation where a user's mouth is covered.