A microphone unit including a tubular case having an opened top and an opened bottom, a waterproof film made of metal that has a thickness of 0.01 mm or more and 0.05 mm or less, a hardness of 100 HV or more, a proof stress of 70 N/mm.sup.2 or more, and a tensile strength of 350 N/mm.sup.2 or more, the waterproof film being fixed to the bottom of the case so as to block an opening part of the bottom of the case, a substrate arranged in the case, a microphone mounted on the substrate, and a sealing member that seals an opening part of the top of the case.

A microphone unit including a tubular case having an opened top and an opened bottom, a waterproof film made of metal that has a thickness of 0.01 mm or more and 0.05 mm or less, a hardness of 100 HV or more, a proof stress of 70 N/mm.sup.2 or more, and a tensile strength of 350 N/mm.sup.2 or more, the waterproof film being fixed to the bottom of the case so as to block an opening part of the bottom of the case, a substrate arranged in the case, a microphone mounted on the substrate, and a sealing member that seals an opening part of the top of the case.

An audio capture device selects between multiple microphones to generate an output audio signal depending on detected conditions. The audio capture device determines whether one or more microphones are wet or dry and selects one or more audio signals from the one or more microphones depending on their respective conditions. The audio capture device generates a mono audio output signal or a stereo output signal depending on the respective conditions of the one or more microphones.

This disclosure presents a connector assembly for providing a waterproof connection to a case for an electronic device. The connector assembly includes a connector body, an electrical cable, and an electrical conductor. The electrical conductor is electrically connected to the electrical cable and electrically engages the installed electronic device to convey at least one of data and power between the installed electronic device and the electrical cable. The connector assembly also includes an outer sleeve configured to freely rotate around the connector body and further configured to removably connect the connector assembly to the case. The outer sleeve includes a securing region to removably secure the connector assembly to the case, an inner gasket to seal an inner sealing interface of the outer sleeve with the connector body, and an outer gasket positioned to seal an outer sealing interface of the outer sleeve with the case.

This disclosure presents a connector assembly for providing a waterproof connection to a case for an electronic device. The connector assembly includes a connector body, an electrical cable, and an electrical conductor. The electrical conductor is electrically connected to the electrical cable and electrically engages the installed electronic device to convey at least one of data and power between the installed electronic device and the electrical cable. The connector assembly also includes an outer sleeve configured to freely rotate around the connector body and further configured to removably connect the connector assembly to the case. The outer sleeve includes a securing region to removably secure the connector assembly to the case, an inner gasket to seal an inner sealing interface of the outer sleeve with the connector body, and an outer gasket positioned to seal an outer sealing interface of the outer sleeve with the case.

An electronic device includes a speaker module which includes a speaker unit and a first speaker housing that is coupled to the speaker unit in a first direction. The first speaker housing accommodates the speaker unit, and is arranged in the inner space of the electronic device. A soundproof device allows the inner space of the electronic device to communicate with the outside, and an acoustic passage connects the soundproof device and a portion from which a sound is radiated by the speaker unit of the speaker module. The speaker module can further include an airtight member for sealing a gap between the speaker module and the acoustic passage so that the sound radiated from the speaker unit is transmitted to the acoustic passage.

An electronic device includes a speaker module which includes a speaker unit and a first speaker housing that is coupled to the speaker unit in a first direction. The first speaker housing accommodates the speaker unit, and is arranged in the inner space of the electronic device. A soundproof device allows the inner space of the electronic device to communicate with the outside, and an acoustic passage connects the soundproof device and a portion from which a sound is radiated by the speaker unit of the speaker module. The speaker module can further include an airtight member for sealing a gap between the speaker module and the acoustic passage so that the sound radiated from the speaker unit is transmitted to the acoustic passage.

A piezoelectric, poly (γ-benzyl-α,L-glutamate) (“PBLG”) planar microphone, and method for construction thereof, are disclosed. The microphone includes at least a polyester film, a piezoelectric, hot pressed poly (γ-benzyl-α,L-glutamate) (“HPPBLG”) layer, and an aluminum coating for the HPPBLG layer. The coated HPPBLG layer is coupled to the polyester film.

A piezoelectric, poly (γ-benzyl-α,L-glutamate) (“PBLG”) planar microphone, and method for construction thereof, are disclosed. The microphone includes at least a polyester film, a piezoelectric, hot pressed poly (γ-benzyl-α,L-glutamate) (“HPPBLG”) layer, and an aluminum coating for the HPPBLG layer. The coated HPPBLG layer is coupled to the polyester film.

A carbon nanotube thermophone is provided which includes a urethane frame having mounting holes at corners of the frame. Screw holes in the frame are provided for a cable holder. A square shaped carbon nanotube material chip is positioned within the urethane frame. The carbon nanotube material chip can comprise multiple carbon nanotube sheets to electrically tune the impedance to match a driving amplifier impedance load. Wooden spacers assist in positioning the carbon nanotube material chip. A first end of a cable is soldered to the carbon nanotube material chip at electrodes of the material chip. A high temperature rated silicon sealant is used for attachment points on the thermophone.