A terminal speaker includes an enclosure with accommodating space with an affixed sound production monomer. The sound production monomer has a diaphragm configured to vibrate to produce sound. The enclosure includes a first inner bottom wall and an inner sidewall fastened to the first inner bottom wall. The diaphragm is fastened to the inner sidewall, dividing the accommodating space into front and rear cavities. The first inner bottom wall is in the front cavity. A sound outlet hole penetrates the inner sidewall. The front cavity is in communication with the sound outlet hole by a front cavity channel. The diaphragm is tilted relative to the first inner bottom wall. The perimeter of the end of the front cavity in communication with the sound outlet hole is greater than the perimeter of the end of the front cavity remote from the sound outlet hole.

Acoustic waveguides can be used to improve audio performance of playback devices, such as a soundbar. Such a playback device can include an elongated body defining an outer perimeter with a forward surface, an upper surface, and a rounded edge between the forward surface and the upper surface. An up-firing transducer is configured to direct sound along an axis that has a vertical oblique angle with respect to a forward axis. A waveguide in fluid communication with the up-firing transducer includes a sidewall extending circumferentially around the transducer, the sidewall having a first end adjacent the up-firing transducer and a second end adjacent the outer perimeter, such that an opening defined by the sidewall has a larger area at the second end than at the first end. A rear portion of the sidewall is more steeply angled with respect to the axis than a forward portion of the sidewall.

A sound reproduction device includes a cabinet and a loudspeaker disposed inside the cabinet, the cabinet includes a baffle including a plurality of through holes provided in a ringshaped area, and the loudspeaker is disposed in an orientation in which sound is emitted toward the plurality of through holes.

The present disclosure is related to a mobile phone cover providing passive noise reduction of at least one microphone audio input signal, comprising a supporting frame (13). The supporting frame (13) is arranged with an extension element with a compartment (15) facing upwards with a partly open surface on a same side as a display surface of the mobile phone, the compartment (15) is adapted to support a porous body (17) providing the passive noise reduction.

Disclosed is a voice input apparatus including: a speaker having a diaphragm for outputting sound downward; a speaker room in which the diaphragm is accommodated; and a microphone disposed outside the speaker room, wherein the speaker room includes: a room base disposed below the diaphragm; a sound guide which is protruded upward from the room base, positioned below the diaphragm, and reflects the sound outputted from the diaphragm outward in a radial direction; and a room sidewall which is extended upward from a circumference of the room base to surround the sound guide, and has a sound discharge port for emitting the sound reflected by the sound guide to the outside of the speaker room.

A loudspeaker system includes a loudspeaker base and a loudspeaker peripheral that is independent of the loudspeaker base. The loudspeaker peripheral is shaped as a role figure. The loudspeaker base and the loudspeaker peripheral connect through a contact connection or a non-contact connection, and provide personalized voice data corresponding to the role figure when connected.

A sound collecting device that is located in a first space and collects sounds generated in a second space isolated from the first space by a predetermined plate, comprising a metal plate, a piezoelectric element fixed on an upper surface of the metal plate, a housing that has a tubular shape having opened upper and lower surfaces, and has an upper end surface adhesively attached to a lower surface of the metal plate and a lower end surface adhesively attached to the predetermined plate, and a vibration pickup terminal that is accommodated in the housing, and comprises a leg part adhesively attached to the lower surface of the metal plate, a shaft part extending downward from the leg part, and a tip part which is formed at a tip of the shaft part in the downward direction and comes into contact with the predetermined plate when the housing is adhesively attached to the predetermined plate.

A speaker module adapted to be disposed on a wearable device. The speaker module includes at least one driving unit and an enclosure. The driving unit is configured to produce sound. The enclosure contains the driving unit and has a front chamber and a rear chamber. The front chamber and the rear chamber are individually located at two opposite sides of the driving unit. The enclosure has a front opening, a first rear opening, and a second rear opening. The front opening communicates with the front chamber. The first rear opening and the second rear opening individually communicate with the rear chamber. A sum of sound outputted from the front opening, the first rear opening, and the second rear opening has directivity.

In an example, an electronic device may include a housing and a first acoustic device pivotally disposed in the housing. The first acoustic device may move between a first position within the housing and a second position outside the housing. The first acoustic device may direct an acoustic signal in a direction. Further, the electronic device may include a camera to capture an image of an area in front of the electronic device. Furthermore, the electronic device may include a processor operatively coupled to the camera and the first acoustic device. The processor may determine a location of a facial feature of an operator using the captured image. Further, the processor may control an angle of rotation of the first acoustic device relative to the housing based on the location of the facial feature to modify the direction of the acoustic signal.

Improved monaural headsets are provided. In some embodiments, a monaural headset includes: a first earphone with a speaker to provide output audio to a user; a second earphone without a speaker to provide output audio to the user; and a headband, connected to the first earphone and the second earphone; wherein the second earphone includes at least one vent opening, which vent opening during use provides an acoustic path between an environment of the user, wearing the headset, and the user's ear.