An electronic watch may include a housing at least partially defining an interior cavity divided into at least a first volume and a second volume, a pressure-sensing component positioned within the first volume, a speaker positioned within the first volume, a processor positioned within the second volume, a battery positioned within the second volume, and a barometric vent that allows air pressure equalization between the first volume and an external environment.

A loudspeaker arrangement for a seat within a motor vehicle utilizes one or more localized sound output ports for low frequency sound reproduction. A housing, such as an enclosure, substantially surrounds a loudspeaker. One or more audio transmission line channels acoustically interconnect the interior of the enclosure to one or more sound output ports. The enclosure is situated below, behind, or in some fixed location around or within a vehicle seat. The sound outputs ports are situated at or near a headrest such that the output ports are located substantially less than a wavelength of sound at the highest operating frequency from either ear of the seat's occupant. The acoustic response and resonances of a 1) rear enclosure, 2) a front vented enclosure, 3) a loudspeaker, and 4) an audio transmission path from the enclosure to one or more output ports are used to provide localized low frequency sound reproduction.

Innovations for an improved earphone design are provided. The earphone includes an earphone body with three or more acoustic drivers disposed substantially congruently about an axis. One or more acoustic drivers included in the earphone body include a first, sound emitting, end and a second opposing end. A vent is defined in a compartment in which the acoustic driver is received and is coaxial to an axis passing through the first and second ends of the acoustic driver.

A head-worn sound reproduction device is provided in the form of left and right earphones, which can either be clipped to each ear or mounted on other headgear. The earphones deliver high fidelity audio to a user's eardrums from near-ear range, in a lightweight form factor that is fully “non-blocking” (allows coupling in and natural hearing of ambient sound). Each earphone has a woofer component that produces bass frequencies, and a tweeter component that produces treble frequencies. The woofer outputs the bass frequencies from a position close to the ear canal, while the tweeter outputs treble frequencies from a position that is either close to the ear canal or further away. In certain embodiments, the tweeter is significantly further from the ear canal than the woofer, leading to a more expansive perceived “sound stage”, but still with a “pure” listening experience.

Disclosed is a miniature speaker module. The module includes: a module housing and a speaker unit, wherein the speaker unit divides an inner space of the module housing into a front sound cavity and a rear sound cavity. The module housing includes a side wall and a bottom wall connected to the side wall, in which side wall being provided a sound outlet hole. The module housing further includes a supporting platform arranged in a cavity enclosed by the side wall and the bottom wall, and a partition wall connected to the supporting platform, wherein the partition wall and the bottom wall are parallel and oppositely arranged one above another. The speaker unit is mounted on the supporting platform. The speaker unit, the supporting platform and the partition wall constitute the front sound cavity, wherein the front sound cavity is in communication with the sound outlet hole.

A loudspeaker arrangement comprises a transducer arranged in a loudspeaker enclosure, the loudspeaker enclosure enclosing a rear part of the transducer, and an aperture-defining structure (hereinafter, the aperture) mounted on a front side of the transducer in a direction of propagation of sound emitted by the transducer. The transducer is configured to emit sound within a wide frequency range, and at frequencies of above a predetermined threshold. The aperture is configured to amplify sound at predetermined frequencies or within a predetermined frequency range within the wide frequency range, and to let sound at all other frequencies within the wide frequency range pass essentially unaltered. The loudspeaker enclosure is sized such that the resonance frequency of the loudspeaker enclosure matches the resonance frequency of the transducer in free air, wherein the resonance frequency of the transducer in free air is below the predetermined threshold.

A head-worn sound reproduction device is provided in the form of left and right earphones, which can either be clipped to each ear or mounted on other headgear. The earphones deliver high fidelity audio to a user's eardrums from near-ear range, in a lightweight form factor that is fully “non-blocking” (allows coupling in and natural hearing of ambient sound). Each earphone has a woofer component that produces bass frequencies, and a tweeter component that produces treble frequencies. The woofer outputs the bass frequencies from a position close to the ear canal, while the tweeter outputs treble frequencies from a position that is either close to the ear canal or further away. In certain embodiments, the tweeter is significantly further from the ear canal than the woofer, leading to a more expansive perceived “sound stage”, but still with a “pure” listening experience.

A head-worn sound reproduction device is provided in the form of left and right earphones, which can either be clipped to each ear or mounted on other headgear. The earphones deliver high fidelity audio to a user's eardrums from near-ear range, in a lightweight form factor that is fully “non-blocking” (allows coupling in and natural hearing of ambient sound). Each earphone has a woofer component that produces bass frequencies, and a tweeter component that produces treble frequencies. The woofer outputs the bass frequencies from a position close to the ear canal, while the tweeter outputs treble frequencies from a position that is either close to the ear canal or further away. In certain embodiments, the tweeter is significantly further from the ear canal than the woofer, leading to a more expansive perceived “sound stage”, but still with a “pure” listening experience.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include an acoustic output component and a supporting structure forming an acoustically open structure that allows the acoustic output component to acoustically communicate with the surroundings. The acoustic output component may include a plurality of acoustic drivers, each of which may be configured to output a sound with a frequency range. At least one of the acoustic drivers may include a magnetic system for generating a first magnetic field. The magnetic system may include a first magnetic component for generating a second magnetic field and at least one second magnetic component. A magnetic gap may be formed between the first magnetic component and the at least one second magnetic component. A magnetic field intensity of the first magnetic field in the magnetic gap may be greater than that of the second magnetic field in the magnetic gap.

Disclosed herein is a speaker. The speaker includes: an enclosure provided in a rectangular parallelepiped shape; a speaker unit mounted on at least one face of the enclosure; and a partition provided inside the enclosure and partitioning a space, wherein the partition divides a space inside the enclosure, and a space starting from the speaker unit has an asymmetrical cross section of a tunnel structure.