A compression driver for an omnidirectional loudspeaker having an inverted dome diaphragm, a phasing plug having a top portion facing a convex surface of the inverted dome diaphragm and a plurality of concentric apertures that cooperate with the convex surface of the inverted dome diaphragm. Each aperture has a predetermined radial width and is spaced a predetermined concentric distance from an adjacent aperture converging at an exit of the phasing plug. The compression driver has a dispersion control assembly mounted to the bottom portion of the phasing plug along the central axis.

Example embodiments provide a device that includes a support plate having a flat base portion and an elongated portion which extends perpendicular to the flat base portion, and a housing embodying one or more of a microphone and a speaker, and a housing backside having a set of screw holes configured to receive a set of screws to secure the support plate flat base portion to be flush mounted against the housing.

An outdoor sound sensing system ideal for homes and buildings equipped with windows called the sound sensing system. The sound sensing system consists of a two-sided printed circuit board with a microphone module, a lightweight sticker, and a cable system that connects the printed circuit board to a sound recording and processing module. The printed circuit board has an aperture aligned to an acoustic shield to provide protection from the environment for the microphone module. The lightweight sticker has an aperture that is also aligned to the acoustic shield.

A smart sound mirror device includes: a speaker unit configured to output a sound; a mirror unit detachably installed to the speaker unit; and a wall mount bracket configured to be fixedly installed on a wall, the wall mount bracket being selectively fixed to the speaker unit or the mirror unit. Further, the speaker unit includes: a speaker body; a speaker built in the speaker body; a speaker bracket mounted on a rear portion of the speaker body to be fixed to the wall mount bracket; and a speaker cover mounted on a front portion of the speaker body and providing a sound slit through which a sound of the speaker is output.

This disclosure describes a ceiling tile microphone system that includes a plurality of microphones coupled together as a microphone array and used for beamforming processing, one or more separate processing devices that couple to the microphone array, where one or more separate processing devices further include beamforming, acoustic echo cancellation, and adaptive acoustic processing; a single ceiling tile with an outer surface on the front side of the ceiling tile where the outer surface is acoustically transparent, the microphone array combines with the ceiling tile as a single unit, the ceiling tile being mountable in a drop ceiling in place of a ceiling tile included in the drop ceiling; where the system is used in a drop ceiling mounting configuration; where the microphone array couples to the back side of the ceiling tile and all or part of the system is in the drop space of the drop ceiling.

The disclosure is directed to a mounting assembly for the recessed installation of a voice-enabled device. The mounting assembly comprises a trim comprising an outer flange, an inner flange, and a wall section. At least a portion of the outer flange of the trim is designed to be positioned below a ceiling, and the inner flange is designed for positioning the voice-enabled device thereon. The mounting assembly also comprises retaining structures that are attached to the wall section. The retaining structures are designed to hold the voice-enabled device on the inner flange.

An audio system for an elevator includes two or more speaker cabinets arranged inside a suspended ceiling fixed to a ceiling board of a car of the elevator, an input device to which sound content radiated to an inside of the car from each of the two or more speaker cabinets are input, and a sound field control device configured to conduct phase control and reverberation time control for the sound content and thereby cause a sound wave based on the sound content to be radiated from the speaker cabinet to the inside of the car. Each of the speaker cabinets includes a casing arranged inside the suspended ceiling, and a speaker unit arranged inside the casing and having a radiation surface that radiates the sound wave.

A microphone assembly for a vehicle headliner includes a housing arranged to be received within a substrate layer of the headliner and having an upper portion and a lower portion. A circuit board is mounted in the upper portion and has a microphone element coupled thereto. An insert bracket includes a base and a shaft member extending upwardly therefrom, the base having a plurality of apertures aligned with the shaft member, wherein the shaft member engages the lower portion to connect the insert bracket to the housing. A sealing gasket having at least one channel defining an air path extending therethrough is arranged to be received within the shaft member and extend between the base and the upper portion, providing acoustic sealing between the insert bracket and the housing such that the air path directs sound from a cabin of the vehicle through the apertures to the microphone element.

A loudspeaker system is provided herein comprising: a digital transmitter adapted to store, retrieve, and transmit digital messages over a network cable using an audio over internet protocol (AoIP), and wherein the transmitted digital messages are individually addressable using an IP address, and wherein the transmitted digital messages contain digital audio messages and digital command and control messages; an endpoint enclosure adapted to have a unique IP address pre-assigned to it such that the endpoint enclosure is adapted to receive the transmitted digital messages addressed to it and extract the digital audio messages and the digital command and control messages from the transmitted and received digital messages, and wherein the endpoint enclosure comprises additional circuitry adapted to extract the digital audio messages from the received digital messages and power from the network cable, and generate an electrical audio signal from the extracted digital audio messages; an “N” position switch adapted to receive the electrical audio signal from the additional circuitry and output the same on one or more of “N” output ports based on the position of the switch; and a first set of loudspeakers adapted to receive the electrical audio signal and broadcast the same as an acoustic audio signal.