A vehicle outside microphone unit detects noises outside a vehicle and has a sound channel that has an entry opening terminating at a microphone. In an orientation in which the microphone constitutes an uppermost point of the sound channel, a sound channel makes a bend upwards, starting from the entry opening, and is generally configured as a water drain. Further, a vehicle acoustical system having such a vehicle outside microphone unit and a vehicle having a corresponding vehicle acoustical system are described.

A vehicle outside microphone unit detects noises outside a vehicle and has a sound channel that has an entry opening terminating at a microphone. In an orientation in which the microphone constitutes an uppermost point of the sound channel, a sound channel makes a bend upwards, starting from the entry opening, and is generally configured as a water drain. Further, a vehicle acoustical system having such a vehicle outside microphone unit and a vehicle having a corresponding vehicle acoustical system are described.

A speaker waveguide includes a first orifice arranged about a rotational axis of the waveguide, a waveguide region that extends radially outwardly from the first orifice, and a bracket region defining a second orifice and a third orifice.

A mobile computing device receptacle is provided. The mobile computing device receptacle has a rear enclosure with a receiving area for receiving a mobile computing device. The mobile computing device receptacle also has a first acoustic amplification component operably connected to a first side of the rear enclosure. In addition, the mobile computing device receptacle has a second acoustic amplification component operably connected to a second side of the rear enclosure. Further, the mobile computing device receptacle has a front enclosure having a first side speaker hole arrangement and a second speaker hole arrangement. The first side speaker hole arrangement is configured to be positioned over the first acoustic amplification component. In addition, the second side speaker hole arrangement is configured to be positioned over the second acoustic amplification component. A coupling mechanism couples a mobile computing device between the front enclosure and the rear enclosure.

Several embodiments of a localized audibility sound system are disclosed. In an embodiment designed for persons playing a video game, configurations are disclosed which limit propagation of low-frequency sound to nearby areas or rooms, both for group and single-person play. Other embodiments are disclosed for use in trade shows and the like, which limit propagation sound to nearby booths and areas, while providing a rich audio experience for persons in a defined area. Embodiments for use in conference-calling are disclosed which facilitate selective telephonic transmission or recording of sounds spoken by persons around a conference table, while attenuating telephonic transmission or recording of other sounds created in the conference room such as typing on computer keyboards.

A mobile computing device receptacle is provided. The mobile computing device receptacle has a rear enclosure with a receiving area for receiving a mobile computing device. The mobile computing device receptacle also has a first acoustic amplification component operably connected to a first side of the rear enclosure. In addition, the mobile computing device receptacle has a second acoustic amplification component operably connected to a second side of the rear enclosure. Further, the mobile computing device receptacle has a front enclosure having a first side speaker hole arrangement and a second speaker hole arrangement. The first side speaker hole arrangement is configured to be positioned over the first acoustic amplification component. In addition, the second side speaker hole arrangement is configured to be positioned over the second acoustic amplification component. A coupling mechanism couples a mobile computing device between the front enclosure and the rear enclosure.

A speaker includes: an open-backed speaker unit, a housing, and a fin unit. The housing is disposed so as to cover a rear side of the speaker unit, and forms a back cavity with the speaker unit. The fin unit is disposed in the back cavity, and includes an annular or arc-like fin, which approaches a rear side of the housing as going from a center of the speaker unit toward an outer diameter side thereof, and expands in diameter as separating from the speaker unit.

An electroacoustic transducer includes a port that guides a component of at least a partial frequency band of a sound radiated from a first diaphragm in a direction opposite to a direction in which a front surface 38A of a second diaphragm faces, to an external space on a front surface side of the second diaphragm. As the port is provided, the electroacoustic transducer is configured such that a sound pressure of a synthesized sound in the vicinity of a crossover frequency of radiated sounds from the first diaphragm and the second diaphragm in a case in which a drive unit generates vibration is equal to or higher than a sound pressure of the radiated sound from only one of the first diaphragm and the second diaphragm at the crossover frequency.

A speaker waveguide includes a first orifice arranged about a rotational axis of the waveguide, a waveguide region that extends radially outwardly from the first orifice, and a bracket region defining a second orifice and a third orifice.

A multifunctional mobile terminal stand and support device includes a base, a sound amplifying hole, and an atomization assembly. The base defines a first groove and a through hole, the base includes opposing first and second side surfaces, and the first groove is arranged on the first side surface. One end of the through hole is connected to the first groove, and other end of the through hole passes through the second side surface. The sound amplifying hole on one side of the base is connected to the first groove, and the second end of the sound amplifying hole passes through the base. The atomization assembly includes a mounting portion with second groove on the base and an atomizer, the atomizer is arranged in the second groove.