The present disclosure is directed to devices and systems for auto configuration of directional sound. The system comprises: a first and second portable bass loudspeaker, each arranged to radiate sound waves responsive to audio signals. Each portable bass loudspeaker has a sensor for determining whether the portable bass loudspeaker is in an aligned state or non-aligned state, wherein in the aligned state, the first portable bass loudspeaker is oriented in a generally parallel and opposite direction relative to the second portable bass loudspeaker. Each portable bass loudspeaker has an equalization device providing a first equalization setting for outputting audio in response to detection of the aligned state, and a second equalization setting for outputting audio in response to detection of the non-aligned state, wherein the first equalization setting is configured to generate a radiating output from the first and second portable bass loudspeaker in a cardioid pattern.

A display apparatus may include a rear cover at a rear surface of a display module and a vibration generating module at a rear region of the rear cover. The vibration generating module may be configured to output sound in a forward direction and a lateral direction of the display module.

A speaker comprising includes an acoustic generation unit, a tube, and a pressure transmission member. The acoustic generation unit is arranged in a housing and includes a rear surface that faces an inside of the housing. The tube extends from the rear surface to an outside of the housing in a winding manner. The pressure transmission member is arranged at a side wall of the tube. The pressure transmission member is shared by portions of the tube at a plurality of positions that are located at different distances from the rear surface.

A novel loudspeaker with a reflex enclosure that has the reflex port terminating to the bottom of the enclosure. The loudspeaker further includes a stand which is removably attached to the bottom of the enclosure so as to create a clearance between the bottom and the surface supporting the loudspeaker.

The present disclosure is directed to devices and systems for auto configuration of directional sound. The system comprises: a first and second portable bass loudspeaker, each arranged to radiate sound waves responsive to audio signals. Each portable bass loudspeaker has a sensor for determining whether the portable bass loudspeaker is in an aligned state or non-aligned state, wherein in the aligned state, the first portable bass loudspeaker is oriented in a generally parallel and opposite direction relative to the second portable bass loudspeaker. Each portable bass loudspeaker has an equalization device providing a first equalization setting for outputting audio in response to detection of the aligned state, and a second equalization setting for outputting audio in response to detection of the non-aligned state, wherein the first equalization setting is configured to generate a radiating output from the first and second portable bass loudspeaker in a cardioid pattern.

A bass reflex port including: a tubular body portion; and a surface forming portion which is board-like, and continuous to an inner wall of the tubular body portion and which has a surface extending radially outwardly from an opening end of the tubular body portion disposed in a housing of a speaker, wherein the surface forming portion extends linearly in a direction away from a tube axis of the tubular body portion in a cross section parallel to the tube axis.

Headphones comprising a first acoustic path configured to provide passive noise cancellation, and a second acoustic path configured to provide audio leaking. At least a part of the first acoustic path is different from at least a part of the second acoustic path.

A microphone device includes a base and a microelectromechanical system (MEMS) transducer and an integrated circuit (IC) disposed on the base. The microphone device also includes a cover mounted on the base and covering the MEMS transducer and the IC. The MEMS transducer includes a diaphragm attached to a surface of the substrate and a back plate mounted on the substrate and in a spaced apart relationship with the diaphragm. The diaphragm is attached to the surface of the substrate along at least a portion of a periphery of the diaphragm. The diaphragm can include a silicon nitride insulating layer, and a conductive layer, that faces a conductive layer of the back plate. The MEMS transducer can include a peripheral support structure that is disposed between at least a portion of the diaphragm and the substrate. The diaphragm can include one or more pressure equalizing apertures.

Headphones comprising a first acoustic path configured to provide passive noise cancellation, and a second acoustic path configured to provide audio leaking. At least a part of the first acoustic path is different from at least a part of the second acoustic path.

A novel loudspeaker with a reflex enclosure that has the reflex port terminating to the bottom of the enclosure. The loudspeaker further includes a stand which is removably attached to the bottom of the enclosure so as to create a clearance between the bottom and the surface supporting the loudspeaker.