Abstract: A wall-mounted shelf attachable to a vertical surface (14), the wall-mounted shelf (1) including a shelf body (1?) including a flat top shelf surface (10a) and a loudspeaker (2) including at least one loudspeaker element (12) and being arranged below the top shelf surface (10a). The wall-mounted shelf (1) further includes a mounting assembly (3), wherein the mounting assembly (3) includes a bracket (3) attachable to the vertical surface (14) and having a connection (5) for connecting the bracket (3) to the shelf body (1?).

Abstract: A device for detecting physiological sounds includes a thin film and a conductive element for conducting sounds to the thin film when contacting a skin of a live being. The conductive element is located on the thin film. The device of the invention can significantly improve the detection sensitivity and resolution of physiological sounds, and can give early diagnosis pathological sounds, for example, heart failure can be detected by means of heart sound diagnosis.

Abstract: A display apparatus includes a display device including a display panel configured to display an image and include first to sixth regions, at least one first vibration device and at least one second vibration device respectively at the first region and the second region, at least one third vibration device, at least one fourth vibration device, and at least one fifth vibration device respectively at the fourth to sixth regions, a first partition between the first region and the third region, a second partition between the second region and the third region, a third partition between the fourth region and the sixth region, and a fourth partition between the fifth region and the sixth region, wherein a length of one or more among the first partition and the second partition differs from a length of one or more among the third partition and the fourth partition.

Abstract: A biological sound detection device includes a housing, a medium, a transducer unit, a detection unit, and a pressure adjusting unit. The medium has an acoustic impedance closer to water than air. The transducer unit is arranged in the housing, and converts a biological sound transmitted through the medium into an electric signal. The detection unit provides, together with the housing, an accommodation region that accommodates the medium, detects the biological sound, transmits the biological sound to the medium, and is deformable in a direction approaching the transducer unit according to a load of a physical body. The pressure adjusting unit adjusts a pressure of the medium so as to suppress an increase in the pressure of the medium due to deformation of the detection unit.

Abstract: An audio signal synchronization control device of the present disclosure includes a host controller, a plurality of audio devices, a communication unit capable of performing broadcast communication for controlling the plurality of audio devices from the host controller, and a clock oscillator that supplies a master clock of the same source oscillation to the plurality of audio devices. The host controller performs broadcast communication with a plurality of audio devices using a synchronization address. Each of the plurality of audio devices includes a synchronization control unit that generates a synchronization reset signal in a case where broadcast communication is performed by a synchronization address, a clock reset control unit that generates a timing signal in response to the synchronization reset signal, and an audio signal processing unit that processes audio data in accordance with the timing signal.

Abstract: A microphone-speaker device includes a speaker, a microphone configured to capture sound and output an audio data signal and a housing configured to contain the microphone and the speaker. The device also includes an electronic circuit having audio electronics coupled to the speaker, an Ethernet interface configured to connect the electronic circuit for communication with a security system through an Ethernet connection, a power extractor for extracting power from the Ethernet connection for powering the electronic circuit and the microphone, and processing electronics configured to process the audio data signal from the microphone.

Abstract: A cage tower speaker system for outdoor vehicles and watercraft is disclosed. The cage tower speaker system includes a driver cage tower speaker and a dummy cage tower speaker. The driver cage tower speaker includes an outer housing, an amplifier, a speaker assembly, a removable rechargeable battery, and a mounting bracket. The outer housing includes a frontal opening, a rear opening, a rear wall, an exterior surface, and a plurality of membranes. The outer housing, the frontal opening, and the rear wall form an interior sound space surrounding the speaker assembly. The exterior surface extends from the frontal opening to the rear opening and surrounds the interior sound space. Each of the plurality of membranes are coupled to the exterior surface and the interior sound space.

Abstract: An example system for playing media content with a media playback device in a vehicle can be programmed to obtain a sound measurement indicative of a sound level associated with playback of the media content by the media playback device in the vehicle. The example system also can determine a deviation in an expected sound level based upon the sound measurement. Finally, the system can modify playback of the media content by the media playback device (110) based upon the deviation.

Abstract: Systems and methods for providing improved localization of recorded and played back sound are provided by improved microphone arrays for recording sound and by improved systems for playback of sound. Microphone arrays include four microphones with sound transducers located and aimed to mimic capture of sound by human ears. Sound captured by two side-viewing microphones is attenuated, at the time of sound capture and/or recording, at a later processing stage, or at the time of sound playback, by low-pass filtering. The recording maintains four separate channels of sound. Playback occurs through four speakers arranged to reproduce sound in the way human ears hear sound, with appropriate attenuation for side speakers. Playback can also occur through four-channel headphones. Improved playback of two-channel stereo sound can also occur through low-pass filtering of each track and playing the filtered sound through side/rear speakers on the opposite sides.

Abstract: Provided is a biological sound measurement device capable of smoothly performing tasks from measurement initiation to result confirmation, that includes a sound measurement unit including a contact surface configured to be brought into contact with the body surface of a subject, a gripping portion supporting the sound measurement unit and configured to be gripped by a measurer, and a display unit provided to the gripping portion and configured to display an analysis result of a biological sound measured by the sound measurement unit. The gripping portion is configured to be gripped by the measurer in a state in which an index finger of the measurer is placed on a back surface of the sound measurement unit, and the display unit is provided on a surface of the gripping portion on the body surface side in a state in which the contact surface is in contact with the body surface.

Abstract: A method of automatically setting an acoustic signal of a device for space monitoring by using the acoustic signal is proposed. The proposed is a technology for automatically setting the acoustic signal emitted from the device for space monitoring by using the acoustic signal for more precise measurement.

Abstract: A device suitable for mounting in a ceiling aperture in a ceiling is provided. The device comprises a body having a front end and defining a longitudinal axis perpendicular to the front end. The device further comprises a flange that extends laterally beyond the body at the front end. The device further comprises one or more elastic members mounted on the body, each elastic member being configurable in a restrained position and an engaging position. The device further comprises a respective guide on the body associated with each elastic member, each guide being configured to receive a restraining member that urges the respective elastic member into the restrained position when the restraining member is inserted into the guide, and wherein the respective elastic member is released into the engaging position when the restraining member is removed from the guide, wherein each elastic member extends laterally beyond the body in the engaging position.

Abstract: A display includes a plurality of pixel chips, chixels, provided on a substrate. The chixels and the light emitters thereon may be shaped, sized and arranged to minimize chixel, pixel, and sub-pixel gaps and to provide a seamless look between adjacent display modules. The substrate may include light manipulators, such as filters, light converters and the like to manipulate the light emitted from light emitters of the chixels. The light manipulators may be arranged to minimize chixel gaps between adjacent chixels.

Abstract: An audio object including audio content and object metadata is received. The object metadata indicates an object spatial position of the audio object to be rendered by audio speakers in a playback environment. Based on the object spatial position and source spatial positions of the audio speakers, initial gain values for the audio speakers are determined. The initial gain values can be used to select a set of audio speakers from among the audio speakers. Based on the object spatial position and a set of source spatial positions at which the set of audio speakers are respectively located in the playback environment, a set of non-negative optimized gain values for the set of audio speakers is determined. The audio object at the object spatial position is rendered with the set of optimized gain values for the set of audio speakers.

Abstract: In a terminal device in this application, a device housing includes an installation space and a first inner cavity that are isolated from each other. A speaker is installed in the installation space. The speaker includes a speaker shell provided with a sound hole and a second inner cavity, and a vibrating piece, a signal amplifier, and a speaker body that are disposed in the second inner cavity. The first inner cavity and the second inner cavity are isolated from each other. A circuit board is installed in the first inner cavity. The circuit board is provided with a sound signal processing module and a vibration sound wave generation device. The vibration sound wave generation device is connected to the sound signal processing module. The vibration sound wave generation device converts a sound signal from the sound signal processing module into a vibration signal.

Abstract: The present disclosure relates to a pair of glasses. The pair of glasses may include a frame, one or more lenses, and one or more temples. The pair of glasses may further include at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, and a controller. The at least one low-frequency acoustic driver may be configured to output sounds from at least two first guiding holes. The at least one high-frequency acoustic driver may be configured to output sounds from at least two second guiding holes. The controller may be configured to direct the low-frequency acoustic driver to output the sounds in a first frequency range and direct the high-frequency acoustic driver to output the sounds in a second frequency range. The second frequency range may include one or more frequencies higher than one or more frequencies in the first frequency range.

Abstract: The present disclosure relates to a pair of glasses. The pair of glasses may include a frame, one or more lenses, and one or more temples. The pair of glasses may further include at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, and a controller. The at least one low-frequency acoustic driver may be configured to output sounds from at least two first guiding holes. The at least one high-frequency acoustic driver may be configured to output sounds from at least two second guiding holes. The controller may be configured to direct the low-frequency acoustic driver to output the sounds in a first frequency range and direct the high-frequency acoustic driver to output the sounds in a second frequency range. The second frequency range may include one or more frequencies higher than one or more frequencies in the first frequency range.

Abstract: Speaker mounting systems configured to assembly a line array coupled to a support are provided. The mounting systems generally include an engagement system having a hanger assembly with a boom arm including upper connection points. In a first speaker, the upper connection points can be operably coupled to the support. The line array can include a second speaker having an engagement system including a hanger assembly having a boom arm with upper connection points operably coupled to the lower connection points of the first speaker. The boom arm of the second speaker can be pivotably coupled to the second speaker such that the boom arm is adjustable between at least a first position, corresponding to a first splay angle between front faces of the first and second speakers, and a second position, corresponding to a second splay angle between the front faces of the first and second speakers.

Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, and reverberation gain parameters corresponding to different subbands of the first channel signal and the second channel signal, where the obtained reverberation gain parameters are belonging to at least two reverberation gain parameter groups. The method further includes selecting, from the at least two reverberation gain parameter groups, a target reverberation gain parameter group. The method further includes generating parameter indication information, where the parameter indication information indicates the target reverberation gain parameter group. The method further includes encoding reverberation gain parameters corresponding to the target reverberation gain parameter group, the parameter indication information, and the downmixed signal to obtain a bitstream.

Abstract: A loudspeaker includes an enclosure defining an open front side, and an audio transducer positioned within the enclosure and configured to emit sound in a forward direction from the open front side of the enclosure. A battery receptacle is provided by the enclosure, and a removable battery pack assembly is selectively received within the battery receptacle along a longitudinal direction. The removable battery pack assembly includes a battery pack having a plurality of electrochemical cells to generate an output voltage configured to power the audio transducer. A connector at an insertion end of the battery pack electrically connects the electrochemical cells with the audio transducer. A battery door is secured with a plurality of removable fasteners to a base end of the battery pack opposite the insertion end. The battery door is further secured to the enclosure with a threaded fastener configured to be tightened parallel to the longitudinal direction.