A voice augmentation device disposed at a specific position with respect to a droplet suppressing member disposed between a speaker and a listener to suppress droplet generated from at least one of a mouth and nose of the speaker causes a base vibration input part to receive vibration from at least one of the droplet suppressing member and air between the droplet suppressing member and the base vibration input part, causes a mounting part to receive the vibration from the droplet suppressing member, causes a coupling part to receive the vibration from at least one of the droplet suppressing member and air between the droplet suppressing member and the coupling part, and causes a base vibration output part to transmit the vibration received by the base vibration input part, the mounting part, and the coupling part to air on a side of the listener.

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.

Eyewear providing flexible audio to a user. The eyewear includes a frame having two temple arms. The frame also has a front rim retaining two lenses. The eyewear also includes an open ear speaker for firing directional audio to an ear of a user, thereby providing semi-private audio to the user. The eyewear may include a wireless connection to another smart device or network.

Disclosed is an intelligent head-mounted apparatus, comprising: a lens; a leg coupled to the lens and provided with a cavity therein; a sound generation device provided in the cavity and dividing the cavity into a front sound cavity and a rear sound cavity; a sound outlet hole provided on the leg and in communication with the front sound cavity; and a main sound leakage hole provided on the leg and in communication with the rear sound cavity, wherein positions of the sound outlet hole and the main sound leakage hole are configured such that the sound outlet hole is located at a front side of an auricle of a wearer, and the main sound leakage hole is located at a rear side of the auricle of the wearer when the wearer wears the intelligent head-mounted apparatus.

A height channel speaker with an integrated acoustic reflector to reflect sound off of a ceiling down to a listener. The acoustic reflector compensates for thin transducers by creating a virtual image of the real sound source outside the speaker enclosure. The focal point of the acoustic reflector is controlled by modifying the curvature of the reflector surface. The transducer is mounted on an inclined plane to radiate sound in a rear-upward inclined direction. The acoustic reflector is mounted on the same inclined plane so that the radiant axis of the transducer is directly incident on the acoustic reflector surface. The sound is projected towards the ceiling in a forward, upward-inclined direction to reflect off the ceiling and down to the listener. The speaker can be acoustically occluded from the listener by a panel to which the speaker is attached.

A quadrupole transducer created by spatially offsetting a first dipole from a second dipole while causing the first and second dipoles to produce the same acoustic signal. This arrangement minimizes floor, ceiling and wall reflections which alter the perception of sound quality. In some embodiments the second dipole is vertically offset from the first dipole. This produces a phantom acoustic image that is perceived to emanate from an intermediate position.

This document describes a passive thermal-control system that can be integrated into an electronic speaker device and associated electronic speaker devices. The passive thermal-control system uses an architecture that combines heat spreaders and thermal interface materials to transfer heat from heat-generating electronic devices of the electronic speaker device to a housing component of the electronic speaker device. The housing component dissipates the heat to prevent a thermal runaway condition.

An omnidirectional loudspeaker having an inverted dome diaphragm disposed operably connected to a motor assembly and a phasing plug mounted to the motor assembly. The phasing plug has a top portion facing a convex surface of the inverted dome diaphragm and a bottom portion extending downward from the top portion along the central axis with a plurality of concentric apertures extending therethrough. Each aperture has a predetermined radial width and is spaced a predetermined concentric distance from an adjacent aperture. The plurality of concentric apertures cooperates with a compression chamber between the convex surface of the inverted dome diaphragm and the top portion of the phasing plug. Each aperture has a predetermined radial width, is spaced a predetermined concentric distance from an adjacent aperture and extends through the phasing plug exiting at the bottom portion.

A holographic-based directional sound device is provided, the device including: a sound wave generating means generating a sound wave; and a flat plate configured to have the sound wave generating means installed at the center so as to radiate the sound wave to the outside through a surface, and to be composed of a plurality of unit cells, in which at least one groove is formed on a surface of the unit cell, and a radiation angle of the sound wave is determined according to a depth of the groove with respect to the unit cell, wherein the depth of the groove is determined by an individual surface admittance calculated by a cosine function or a sine function of the sum of a first value and a second value on the basis of a preset radiation angle of the sound wave and a preset frequency of the sound wave.

Various implementations include seats and related loudspeakers. In particular cases, a seat includes: a seat headrest portion; a seat backrest portion; and a loudspeaker assembly. The loudspeaker assembly includes at least one driver for generating an acoustic output; and an acoustic exit fixed in the seat backrest portion and angled to provide the acoustic output to a location below a nominal ear position of an occupant of the seat, wherein a firing angle of the at least one driver provides the acoustic output to achieve a consistent frequency response across a range of positions deviating from the nominal ear position.