An electronic device having several speaker modules that are acoustically in-phase and mechanically out-of-phase is disclosed. Embodiments include a pair of speaker modules mounted at respective ends of a lateral link, and the lateral link may be supported relative to a housing of the electronic device. The speaker modules may receive a same audio signal, and the audio signal may drive a first voicecoil in a first direction and a second voicecoil in a second direction. Accordingly, the speaker modules may be driven in mechanically different directions by the same audio signal, such that reactive forces cancel and/or mechanical energy is dissipate in the lateral link between the speaker modules. Other embodiments are also described and claimed.

An amplifier and an electronic device using the same are provided. The amplifier includes a first acoustic box, a speaker, a second acoustic box, a connection tube and at least one sound guide tube. The first acoustic box has a first sound hole. The speaker faces the first acoustic box. The second acoustic box has at least one second sound hole. The connection tube connects the first acoustic box and the second acoustic box. The sound guide tube is connected to the second sound hole.

In various embodiments, an electronic device includes: a diaphragm, a speaker module including a speaker configured to output a sound through a vibration of the diaphragm, and a housing accommodating the diaphragm and the speaker module therein and including a first space provided in a first direction from the speaker module and a second space provided in a second direction opposite the first direction. The electronic device further includes an air adsorption member comprising an air adsorbing material disposed in the first space and having a volume ratio of 90% or less of the first space, the air adsorption member configured to reduce air resistance to the diaphragm disposed above the speaker module without limiting the vibration of the diaphragm.

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).

Disclosed in the present disclosure are a sound production apparatus and an electronic device. The sound production apparatus comprises a holder, a vibration unit, an elastic member, and a damping member, wherein the elastic member connects the holder and the vibration unit, and the damping member is disposed on the elastic member. The technical solution of the present disclosure aims at preventing the elastic member from resonating with the vibration unit, thereby ensuring the vibration trajectory of the vibration unit, and ensuring the operation stability of the sound production apparatus.

A modular headphone system that can afford the wearer configurable choices of hearing protection and quality sound delivery for music and programming is provided. In an embodiment, a modular headphone includes a headband and an earpiece mounted to the headband. The earpiece comprises a can comprising a speaker, the can secured to the headband. A removable and replaceable music ear cup is removably mountable to the can to overlie the speaker. A removable and replaceable hearing protection/sound amplification (HP/amp) ear cup is removably mountable to the can to overlie the speaker.

The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

A speaker system includes a first driver unit, a second driver unit and a cylinder case. The first driver unit and the second driver unit are disposed face to face with the same axial line. The axial line of the first driver unit and the axial line of the second driver unit forms a coaxial axial line or parallel axial lines. The cylinder case is hollow. The first driver unit and the second driver unit are disposed inside the cylinder case and contacts the inner wall of the cylinder case so that the central axial line of the cylinder case is parallel to the coaxial axial line or the parallel axial lines. A speak device includes a plurality of speaker systems. By the aforementioned configuration, even driver units may be disposed in a common cavity.

The present invention discloses a sound absorption material including an organic frame material; a binder; a thickener; and a plurality of sound absorption grains attached to the organic frame material via the binder, having a grain size in a range of 10-100 μm. The stability and the sound absorption performance of the sound absorption material have been effectively improved.