A loudspeaker enclosure comprising a plurality of acoustic sources and having controlled broad-band directivity.

An in-ear wearable that can include an electro-acoustic transducer; a housing supporting the electro-acoustic transducer such that the housing and the electro-acoustic transducer together defining an acoustic volume, a feedback microphone disposed within the acoustic volume to receive the acoustic energy, the feedback microphone including a microphone port, the feedback microphone transducing acoustic energy received at the microphone port into a feedback microphone signal; and a port defined within the housing, the port extending from a first opening to a second opening, wherein the port acoustically couples the acoustic volume to a space outside the housing such that outside acoustic energy from the space outside the housing enters the first acoustic volume through a path that does not pass through the second acoustic volume, wherein the first opening does not extend beyond a first plane tangent to a point of the microphone port nearest to acoustic exit port and orthogonal to a longitudinal axis of the housing.

Intra-concha earphones are disclosed. In an embodiment, an intra-concha earphone includes a housing having a rear space divided into a back volume, a bass duct, and a vent chamber between a driver and a rear wall. The vent chamber may be acoustically coupled with the back volume through both an acoustic port and the bass duct. Furthermore, the vent chamber may be acoustically coupled with a surrounding environment through a vent port, which may be a sole acoustic opening in the rear wall. Thus, sound emitted by the driver may propagate through the acoustic port and the bass duct to meet in the vent chamber before being discharged through the vent port to the surrounding environment. Other embodiments are also described and claimed.

This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.

Headphones, with one or two earcups (10), wherein each earcup (10) includes an electroacoustic sound generator (12) having a membrane (13) configured to radiate sound; a rear wall (14), wherein the membrane is arranged between the rear wall (14) and the user’s ear when the headphones are used, wherein a rear side of the membrane (13) faces a rear volume (26) between the membrane (13) and the rear wall (14) and a front side of the membrane (13) faces a front volume (20) between the membrane (13) and the user’s ear; and a tube (18) having a first and a second opening and an inner volume, wherein the tube (18) is arranged between the membrane (13) and the rear wall (14), and wherein the first opening of the tube (18) faces the membrane (13) and the second opening of the tube faces a peripheral environment behind the rear wall (14).

Motor vehicle with sound system A motor vehicle (10) defining a longitudinal axis (X), a front side, and a median (P) plane including the longitudinal axis (X) and which is vertical, and comprising: a structure (14) comprising a bulkhead (34), at least one front seat (26A) for a driver, and a floor covering (18), the bulkhead and the floor covering partially delimiting a passenger compartment (35), and a sound system (12) including at least one speaker enclosure (42) rigidly attached to the structure, the speaker enclosure comprising at least one woofer (50A) and being located close to the median plane (P): either longitudinally between the bulkhead and a front edge of the front seat, or longitudinally astride a front zone (40A) of the passenger compartment intended to receive the driver and a rear zone (40B) of the passenger compartment intended to receive one or more rear passengers of the motor vehicle.

An earphone comprising a rear chamber and a vent structure. The vent structure comprises a longitudinal recess in the housing wall, which recess is defined by a bottom wall and recess walls connecting the bottom wall and the housing wall, a recess opening in the recess, which recess opening connects the recess and the rear chamber, a mesh device arranged parallel with the bottom wall, whereby a longitudinal recess cavity is provided between the bottom wall and the mesh structure.

The invention also relates to the manufacturing such an earphone.

An open audio device including an acoustic radiator that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. A front acoustic cavity receives front-side acoustic radiation and comprises at least one front sound-emitting opening, and a rear acoustic cavity receives rear-side acoustic radiation and comprises at least one rear sound-emitting opening. The front and rear acoustic cavities each have a fundamental frequency. The fundamental frequencies are within one octave of each other.

An earphone comprising a rear chamber and a vent structure. The vent structure comprises a longitudinal recess in the housing wall, which recess is defined by a bottom wall and recess walls connecting the bottom wall and the housing wall, a recess opening in the recess, which recess opening connects the recess and the rear chamber, a mesh device arranged parallel with the bottom wall, whereby a longitudinal recess cavity is provided between the bottom wall and the mesh structure. The invention also relates to the manufacturing such an earphone.

A speaker device for reproducing sound within a predetermined audio spectrum is provided. The speaker device comprises: a housing including a top, a bottom, and a side surface; at least one speaker disposed within the housing, the at least one speaker including a speaker flange facing towards the bottom; a waveguide including at least a first surface defining at least one sound channel for conducting a given sound produced by the at least one speaker, and the at least one channel includes a first zone, a second zone, and a third zone sequentially defined along a length thereof to provide for sound reproduction from 100 Hz to 20000 Hz.