A speaker apparatus includes a sound guide and a pair of speakers mounted to the sound guide. The sound guide includes a first guide portion configured to guide a sound generated from any one of the pair of speakers in a first direction; and a second guide portion configured to guide a sound generated from the other speaker in a second direction that is plane-symmetric with respect to the first direction. Each of the first and second guide portions includes an opening forming portion formed in an end portion of the corresponding portion and including an opening configured to output a sound generated by the pair of speakers, and a slit forming portion including a slit configured to output a sound, together with the opening, wherein the slit is extended from one side of the opening.

A MEMS transducer package (1) comprises a semiconductor die element (3) and a cap element (23). The semiconductor die element (3) and cap element (23) have mating surfaces (9, 21). The semiconductor die element (3) and cap element (23) are configured such that when the semiconductor die element (3) and cap element (4) are conjoined, a first volume (7, 27) is formed through the semiconductor die element (3) and into the semiconductor cap element (23), and an acoustic channel is formed to provide an opening between a non-mating surface (11) of the semiconductor die element (3) and either a side surface (10, 12) of the transducer package or a non-mating surface (29) of the cap element (23).

An electronic device includes a housing that has a sound hole formed in an outer surface of the housing, a sound collection member that is disposed in the housing, a sound path that extends from the sound hole to the sound collection member, and a waterproof member that is disposed in the sound path and that reduces a possibility of water reaching the sound collection member via the sound hole, wherein the sound path includes a first path that has a first end coupled to the sound hole and that bends more than once from the first end to a second end of the first path, and a second path that is positioned closer to the sound collection member than the first path is and to which the waterproof member is affixed, the second path extending while having a cross-sectional shape corresponding to a shape of the waterproof member.

A loudspeaker comprising an acoustic waveguide (210), the acoustic waveguide (210) being configured to change its shape in order to change the directivity of sound emitted by the loudspeaker

A protective apparatus for sound-absorbing particles (4) in a sounding apparatus, comprising a housing (1) and a rear acoustic cavity formed inside the housing (1). The rear acoustic cavity is filled with sound-absorbing particles (4). A sound circulation channel (5) communicating the rear acoustic cavity with the outside is provided on the housing (1). A sound transmission layer (3) used for preventing the sound-absorbing particles (4) from being exposed covers an entrance of the sound circulation channel (5). The sound transmission layer (3) of the protective apparatus separates the sound circulation channel (5) from the rear acoustic cavity, such that airflow in the rear acoustic cavity passes through the sound transmission layer (3) and then flows out of the sound circulation channel (5). Configuration of the sound transmission layer (3) can hinder the sound-absorbing particles (4), prevent the sound-absorbing particles (4) from entering the sound circulation channel (5), and do not influence outflow of airflow. The problem in the prior art that sound-absorbing particles (4) are easily exposed or block a sound circulation channel (5) is solved, and the quality of a sounding apparatus is ensured.

A speaker apparatus includes a sound guide and a pair of speakers mounted to the sound guide. The sound guide includes a first guide portion configured to guide a sound generated from any one of the pair of speakers in a first direction; and a second guide portion configured to guide a sound generated from the other speaker in a second direction that is plane-symmetric with respect to the first direction. Each of the first and second guide portions includes an opening forming portion formed in an end portion of the corresponding portion and including an opening configured to output a sound generated by the pair of speakers, and a slit forming portion including a slit configured to output a sound, together with the opening, wherein the slit is extended from one side of the opening.

An acoustic device for forming a wall of sound underwater. Walls of sound are useful in water for guiding fish away from areas. Hitherto, systems have used bubbles of water to facilitate the speed of travel of the sound. Those systems have suffered from the ability to maintain a consistent wall of bubbles and have often been inefficient. The present invention seeks to provide an acoustic device for forming a wall of sound underwater and comprises a transducer connected to an acoustic waveguide. The waveguide comprises one or more projections, whereby sound generated by the transducer travels along the projection or projections to form the wall of sound. The waveguide may typically comprise compressible projections formed from neoprene. These projections are arranged in a fan or frond shape. In addition or alternatively, the projections may be laminar. The projections could be of different lengths.

An acoustic device that has a neck loop that is constructed and arranged to be worn around the neck. The neck loop includes a housing with a first acoustic waveguide having a first sound outlet opening, and a second acoustic waveguide having a second sound outlet opening. There is a first open-backed acoustic driver acoustically coupled to the first waveguide and a second open-backed acoustic driver acoustically coupled to the second waveguide.

Electronic equipment includes a cover including a first hole, a printed circuit having at least one microphone mounted thereon and including a second hole, a heatsink including a third hole, a thermal pad including a fourth hole, and a compression element, the electronic equipment being arranged in such a manner that the first hole, the second hole, the third hole, and the fourth hole together define an acoustic duct that is arranged to enable the microphone to pick up sound signals coming from outside the electronic equipment, and in such a manner that the compression element compresses the thermal pad around the acoustic duct in order to ensure sound-proofing of the acoustic duct.

A MEMS transducer package (1) comprises a semiconductor die element (3) and a cap element (23). The semiconductor die element (3) and cap element (23) have mating surfaces (9, 21). The semiconductor die element (3) and cap element (23) are configured such that when the semiconductor die element (3) and cap element (4) are conjoined, a first volume (7, 27) is formed through the semiconductor die element (3) and into the semiconductor cap element (23), and an acoustic channel is formed to provide an opening between a non-mating surface (11) of the semiconductor die element (3) and a side surface (10, 12) of the transducer package.