Abstract: A sound generation apparatus includes sound collection means configured to collect a sound of a sound source in a space, image capture means configured to capture an image of the sound source, estimation means configured to estimate an attribute of the sound source from the image captured by the image capture means, sound generation means configured to obtain an acoustic characteristic of a target sound included in the sound collected by the sound collection means and to generate multiple masking sounds on the basis of the acoustic characteristic and the attribute of the sound source estimated by the estimation means, display means configured to display the attribute of the sound source estimated by the estimation means, sound selection means configured to receive selection of a masking sound from the masking sounds generated by the sound generation means, and sound output means configured to output the selected masking sound.

Abstract: The present disclosure is directed to a sound amplification device. The sound amplification device comprises a vibrating body, the vibrating body including at least one first vibration surface and at least one contact region for contacting with a vibration source. The vibration source detachably contacts with a contact region, an area of a first vibration surface is larger than an area of the contact region, the vibration source is configured to generate vibration, and the vibration is transmitted to the first vibration surface through the contact region, and further transmitted outwards through the first vibration surface.

Abstract: A patient monitor can diagnose whether its speaker is blocked, malfunctioning, or at a volume that is too low. For example, the monitor can include a processor that can diagnose the speaker by recording a microphone input signal. The processor can compare the microphone input signal to an expected alarm signal that should be output by the speaker. If the two do not match or reasonably correspond to one another, then the processor may increase the volume of the alarm to determine whether doing so can overcome an obstruction, noise, or potential malfunction. The microphone can again detect the speaker output, and the processor can again make another comparison or analysis of the input with the speaker output. If the speaker output as detected via the microphone is still insufficiently loud, then the patient monitor may output an indication that the speaker has a problem.

Abstract: The present disclosure provides methods, devices and computer program products for encoding and decoding of a vector of parameters in an audio coding system. The disclosure further relates to a method and apparatus for reconstructing an audio object in an audio decoding system. According to the disclosure, a modulo differential approach for coding and encoding a vector of a non-periodic quantity may improve the coding efficiency and provide encoders and decoders with less memory requirements. Moreover, an efficient method for encoding and decoding a sparse matrix is provided.

Abstract: A microphone system of the invention is applicable to an electronic device comprising an adjustable mechanism that causes a change in geometry of a microphone array. The microphone system comprises the microphone array, a sensor and a beamformer. The microphone array comprises multiple microphones that detect sound and generate multiple audio signals. The sensor detects a mechanism variation of the electronic device to generate a sensing output. The beamformer is configured to perform a set of operations comprising: performing a spatial filtering operation over the multiple audio signals using a trained model based on the sensing output, one or more first sound sources in one or more desired directions and one or more second sound sources in one or more undesired directions to generate a beamformed output signal originated from the one or more first sound sources.

Abstract: A portable electronic device may include a touch-sensitive display, a housing at least partially enclosing the touch-sensitive display, the housing defining an audio port along a side of the housing, the audio port defining a partially enclosed volume, and an acoustic module positioned within the housing and including an audio enclosure defining a first passage and a second passage, a microphone operably coupled to the partially enclosed volume of the audio port by the first passage, a pressure sensor operably coupled to the partially enclosed volume of the audio port by the second passage, and an acoustic mesh positioned between an end of the second passage and the audio port.

Abstract: A headphone comprising: two headphone earcups each comprising: an earcup housing defining an active chamber that acoustically couples a sound output side of a speaker to an ear of a user, and an inactive chamber that surrounds the active chamber; and a passive valve assembly configured to open in response to a positive pressure and a negative pressure within the active chamber to fluidly couple the active chamber to the inactive chamber and equalize a pressure between the active chamber and the inactive chamber.

Abstract: In embodiments of the invention, the present invention is directed to a contact hearing system including: a transmit circuit including a transmit coil positioned in an ear tip, THE transmit circuit having a first bandpass characteristic, wherein the transmit circuit is tuned such that a center of the first bandpass characteristic is set at a first frequency; and a receive circuit including a receive coil positioned on a contact hearing device, the receive circuit having a second bandpass characteristic, wherein the receive circuit is tuned such that a center of the second bandpass characteristic differs from the center of the first bandpass characteristic.

Abstract: The present disclosure discloses electronic terminal including housing, sound producing device and switching structure, and first sound cavity channel and second sound cavity channel formed in the housing. The sound producing device defines sound producing cavity jointly with housing. The electronic terminal further includes mounting groove formed in housing. The switching structure includes baffle slidably arranged in mounting groove and driving portion driving baffle to slide in mounting groove. The driving portion drives baffle to slide into first sound cavity channel or the second sound cavity channel, to close first sound cavity channel or the second sound cavity channel. The baffle can be driven to slide in mounting groove to selectively close first sound cavity channel or second sound cavity channel, to prevent the problem that the terminal, when using one of the first sound cavity channel and the second sound cavity channel, is affected by the other.

Abstract: A dual-axis swivel speaker mount assembly includes a base section for attachment to a supporting object, a central section, a speaker section for direct/indirect attachment to a speaker, a first pivot assembly pivotably connecting the base section and the central section, a second pivot assembly pivotably connecting the central section to the speaker section, and two to four securing assemblies for selectively securing the pivot assemblies against rotation.

Abstract: A mobile terminal is provided, including a housing (21) and a speaker (10). The speaker (10) includes a box (11) and a sound generation unit (12). The box (11) includes a first cover body (117), a second cover body (118), and a cover plate (13). A first chamber is formed between the sounding unit (12) and the inner bottom wall of the first cover body, and a sound hole (113) is disposed in the first cavity (111). A second cavity (112) is formed between the sound generation unit (12) and the second cover body (118). The sound generation unit (12) includes a diaphragm (123). A resonant cavity (114) with a through hole (116) on one side is formed in the first cover body (117), the cover plate (13) covers the through hole (116), and a microhole (115) is disposed. Airflow enters the second cavity (112) through the microhole (115).

Abstract: Presented herein are acoustic port covers for attachment to electronic devices. An electronic device includes a housing having at least one acoustic port extending through the housing. An acoustic port cover in accordance with embodiments presented herein is configured to be detachably coupled to the housing so as to cover the at least one acoustic port and function as a barrier to the accumulation of foreign materials/contaminants at a protective membrane associated with the at least one acoustic port.

Abstract: Disclosed is a coaxial speaker, including a magnetic circuit system, a first sounding unit, a second sounding unit around the first sounding unit, a flexible printed circuit board electrically connected to the first sounding unit, an insert inserted in the magnetic circuit system for supporting the flexible printed circuit board, and a conductive terminal embedded in the insert for electrically connecting the flexible printed circuit board to an external circuit. The flexible printed circuit board has a first fixing part connected to the insert, a second fixing part connected to the first sounding unit, and a resilient arm connected between the two fixing parts and including two arms respectively extending in two different directions. The coaxial speaker has a high sound quality and a receiver function.

Abstract: A sound control device and a method for controlling the sound control device in a vehicle. The method comprises obtaining an error signal indicating residual noise in the vehicle, and an audio signal; calculating magnitudes of low frequency components of the error signal; adjusting magnitudes of low frequency components of the audio signal according to the magnitudes of the low frequency components of the error signal; and outputting the adjusted audio signal through a speaker.

Abstract: A phase plug for an electrodynamic compression driver, including a compression chamber formed by an oscillating diaphragm and a boundary face of a phase plug assembly adjacent to the diaphragm, a singular acoustic exit defined by a termination of the phase plug assembly, one or more passageways which traverse through the phase plug assembly from the compression chamber to terminate at the acoustic exit, and an axis of rotation, defined within an interior of the phase plug assembly, that extends from the boundary face of the phase plug assembly at the compression chamber to the acoustic exit, where at least one of the passageways expands in cross sectional area between the respective entrance at the boundary face of the phase plug assembly, and the termination at the acoustic exit, while traversing through the phase plug, and where at least one of the internal passageways with the expanding cross section is rotated about the axis of rotation.

Abstract: Aspects of the subject technology relate to electronic devices having speakers and airflow sensors for the speakers. In one or more implementations, the airflow sensor may be formed, in part, by a mesh structure that spans a port in a housing of the electronic device. In one or more implementations, the airflow sensor may be formed, in part, by an exposed portion of a conductive trace of the speaker.

Abstract: Disclosed is a method for controlling volume of a true wireless stereo bluetooth earphone including a pair of left and right touch switches, the method including recognizing a user's touch during media playback or a phone call; determining whether the touch is a shorter touch or a longer touch than a configuration time; increasing the volume by one increment while entering a volume-up mode when the touch is a short touch, according to the determining; determining whether there is an additional short touch within the configuration time; returning to the increasing of the volume by one increment each time there is an additional short touch, according to the determining; returning to checking whether a first volume control mode is entered by existing the volume-up mode when there is no touch for the configuration time; and several additional determining.

Abstract: A portable electronic device comprising: an enclosure having an enclosure wall that forms an interior chamber and a sound output port to an ambient environment; a transducer positioned within the interior chamber and dividing the interior chamber into a front volume chamber coupling a first side of the transducer to the sound output port and a back volume chamber coupled to a second side of the transducer; and an electromechanical valve comprising a number of flaps operable to open and close a vent to the interior chamber, the front volume chamber or the back volume chamber.

Abstract: An acoustic sensor assembly includes a housing having an external-device interface and a sound port to an interior of the housing. An electro-acoustic transducer and an electrical circuit are disposed within the housing. The electro-acoustic transducer separates the interior into a front volume and a back volume, where the sound port acoustically couples the front volume to an exterior of the housing. The back volume includes a first portion and a second portion. The electrical circuit is electrically coupled to the electro-acoustic transducer and to the external-device interface. One or more apertures acoustically couple the first and second portions of the back volume and are structured to shape a frequency response of the acoustic sensor assembly.

Abstract: Disclosed by the present invention is an acoustic device, comprising a sound generating unit. A first sealed cavity is formed at the rear side of a vibrating diaphragm of the sound generating unit, a mounting hole is provided on a cavity wall of the first sealed cavity, and a flexible deformation part is provided on the mounting hole. A second sealed cavity is formed at the outer side of the first sealed cavity, and the second sealed cavity encloses the sound wave generated during deformation of the flexible deformation part therein. The mounting hole is located on the first wall, and a groove is provided on the first wall at the periphery of the mounting hole towards the first sealed cavity. The flexible deformation part is fixed on the bottom of the groove, and a through groove is further provided on the first wall.