A plurality of modal parameters is estimated for a set of discrete locations within a local area using a set of room impulse responses for the set of discrete locations. The local area includes an audio system. A plurality of acoustic model parameters is generated by fitting the plurality of modal parameters to an acoustic model that accounts for a physical geometry of the local area. The plurality of acoustic model parameters and an indication about the acoustic model are stored for later use by the audio system. The audio system estimates the set of acoustic parameters using the plurality of acoustic model parameters and the indication about the acoustic model, and presents audio content using the set of acoustic parameters.

Low-latency audio networking is disclosed. In one embodiment, an example playback device includes a processor and memory having stored thereon instructions executable by the processor. The example instructions are to cause the first playback device to perform functions comprising: receiving audio information; selecting a first frequency channel of a first spectrum based on a threshold latency associated with the audio information; transmitting to the second playback device via a second frequency channel of a second spectrum, control information that identifies the first frequency channel of the first spectrum; and transmitting to the second playback device via the first frequency channel of the first spectrum, the audio information to be played by the second playback device.

A multi-driver multi-channel single enclosure Height-Channel (e.g., ATMOS or DTS-X) enabled soundbar loudspeaker system 260 uses a novel signal processing system, driver mounting configuration (310L, 310R) and method to provide a high fidelity home theater listening experience, in a manner which relies on a new method for cancellation of unwanted direct (not ceiling-bounced) radiation of the Height-Channel (or virtual height envelopment) channel's sound 2130S.

A loudspeaker transducer arrangement is provided. At least three loudspeaker transducer units emit sound in different directions, where the loudspeaker transducer units are arranged in separate walls, arranged in separate planes, such that a first wall arranged in the first plane is defined by a normal L1 perpendicular to the first plane and the first loudspeaker transducer unit mainly emits sound along the normal L1, a second wall arranged in the second plane is defined by a normal L2 perpendicular to the second plane and the second loudspeaker transducer unit emits sound mainly along the normal L2, and a third wall arranged in the third plane is defined by a normal L3 perpendicular to the third plane and the third loudspeaker transducer unit emits sound mainly along the normal L3. A soundbar is also provided.

System and techniques for audio enhancement processing for both electronically delivered audio signals and ambient sound. Ambient sound processing includes audio enhancement processing of signals captured by ambient microphones communicatively coupled to an audio enhancement processing apparatus as well as media provided by a storage device. Audio enhancement processing is provided for a user utilizing an electronic device that is directly or indirectly communicatively coupled to accessory microphones.

For example, a sound reproducing device that is installed in a vehicle interior and realizes directional control is provided. The sound reproducing device includes a speaker, and a sound-absorbing part arranged in front of the speaker and configured to control an emission angle of a sound emitted from the speaker. The sound-absorbing part includes a sound-absorbing material and absorbs a sound emitted from the speaker in an unnecessary direction. The sound reproducing device further includes a reflecting part includes a reflecting plate with a glass-shape, reflects a sound after passing through the sound-absorbing part and direct the sound in a desired direction, and the sound reproducing device forms a sound field that allows the sound from the speaker to be perceived as a sound coming from a virtual speaker arranged outside the reflecting plate.

A loudspeaker system includes a three-loudspeaker array and signal processing method for rendering and playing audio content in a listening environment. The three-loudspeaker array includes a left loudspeaker element, a center/height loudspeaker element, and a right loudspeaker element. A signal processor/renderer can be programmed or configured to process input audio content with a plurality of (e.g., at least five) playback channels (e.g., left, center, right, left elevation, and right elevation channels). The right loudspeaker can be driven by a right main signal and a right elevation-cancellation signal, and/or a combined signal thereof. The left loudspeaker can be driven by a left main signal and a left elevation-cancellation signal, and/or a combined signal thereof. The center/height loudspeaker can be driven by a combination of a center main signal and an elevation/height signal derived or rendered from the input audio signal.

The present disclosure discloses a vehicle headrest including a main body having a receiving chamber and a first sound hole, and a speaker module including a housing fixed to the main body and including a sound outlet, a speaker unit including a diaphragm, and an acoustic inverting tube. The housing further comprises a back sound hole communicated with the coupling back cavity; the acoustic inverting tube is received in the coupling back cavity. The sound wave output from the back sound hole has a first sound phase, the sound wave output from the sound outlet has a second sound phase, a difference between the first sound phase and the second sound phase is in a range of 2/3-4/3. The vehicle headrest in the present disclosure has better sound quality and higher acoustic privacy.

The present disclosure relates to a method for installing and controlling light-sound cinema speakers to provide a light-sound system in a movie theater, which is performed by a light-sound system control device, the method including loading data from a speaker installation terminal; loading information on the movie theater; setting speaker installation positions for a light-sound system based on the loaded data and information; operating and performing the light-sound system; and calculating optimal information for the light-sound system based on the operation of the light-sound system.