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.

A method for casting to multiple wireless speakers, the method including: receiving at a casting device a request from a user device to cast audio signals to multiple wireless speakers, wherein the audio signals include multiple channels; sending an inquiry request; receiving responses to the inquiry request from multiple wireless speakers; connecting to a plurality of speakers from the multiple wireless speakers; sending test signals to each of the plurality of speakers; receiving information from a microphone for each of the one or more test signals output from each of the plurality of speakers, wherein the microphone is a component of a remote control associated with the casting device; selecting one or more of the multiple channels to send to each of the plurality of speakers based on the received information; and sending the corresponding selected one or more of the multiple channels to each of the plurality of speakers.

A mobility control apparatus and a method thereof are provided. The mobility control apparatus includes a main speaker, a sub-speaker, and a processor. The processor identifies whether at least one of media content or an application for playing the media content, or any combination thereof is being executed, receives a request signal for requesting an output of a sound via at least one of the main speaker or the sub-speaker, or any combination thereof, identifies at least one speaker to output a target sound between the main speaker and the sub-speaker, based on at least one of a priority of the sound associated with the request signal, a sound which is being output from the main speaker, or a sound which is being output from the sub-speaker, or any combination thereof, and outputs the target sound, via the identified at least one speaker.

A computer-implemented method of generating a loudspeaker position profile for sound management of an acoustic system comprising a plurality of loudspeakers is provided. The method comprises receiving measurement data; determining types of loudspeakers; calculating angles of arrival; determining a spatial group for each loudspeaker; grouping loudspeakers into spatial groups; assigning each loudspeaker to a type group; grouping loudspeakers into type groups; generating the loudspeaker position profile; and providing the loudspeaker position profile to a sound field management system.

Provided is an information processing device that performs processing on a content. An information processing device is provided with an estimation unit that estimates sounding coordinates at which a sound image is generated on the basis of a video stream and an audio stream, a video output control unit that controls an output of the video stream, and an audio output control unit that controls an output of the audio stream so as to generate the sound image at the sounding coordinates. A discrimination unit that discriminates a gazing point of a user who views video and audio is further provided, in which the estimation unit estimates the sounding coordinates at which the sound image of the object gazed by the user is generated on the basis of a discrimination result.

Example techniques relate to audio generation in a media playback system. Based on one or more first functions and first characteristics of an area, the system may generate first audio that includes a first audio signal and a second audio signal. The system provides the first audio signal to at least one first audio driver and the second audio signal to at least one second audio driver, thereby causing a first playback device and a second playback device to play back the first audio synchronously. The system receives second characteristics of the area and based on one or more second functions and the second characteristics, generates second audio comprising a third audio signal and a fourth audio signal. The system provides the third audio signal to the at least one first audio driver and the fourth audio signal to the at least one second audio driver.

An audio system is provided that includes a first loudspeaker and a second loudspeaker. The first loudspeaker transmits an audio signal including audio data and a signature tone into a listening environment. The second loudspeaker includes at least one controller programmed to receive the audio signal including the audio data and the signature tone and to determine a direction of arrival (DOA) of the audio signal as received at the second loudspeaker based at least on the signature tone. The at least one controller is further programmed to perform a time frequency masking operation on the received audio signal prior to determining the DOA of the audio signal.

A display device including a display configured to display image content; a wireless communication interface configured to wirelessly connect with a plurality of external speakers spaced a distance from the display; at least one positioning module configured to obtain position information of the plurality of external speakers identifying a spatial relationship between each external speaker and the display; and a controller configured to transmit an audio signal to be output by the external speakers, based on the obtained position information of the external speakers.

This application provides a method and an apparatus for determining a virtual speaker set. The method for determining a virtual speaker set includes: determining a target virtual speaker from F preset virtual speakers based on a to-be-processed audio signal, where each of the F virtual speakers corresponds to S virtual speakers, F is a positive integer, and S is a positive integer greater than 1; and obtaining, from a preset virtual speaker distribution table, respective position information of S virtual speakers corresponding to the target virtual speaker, where the virtual speaker distribution table includes position information of K virtual speakers, the position information includes an elevation angle index and an azimuth angle index, K is a positive integer greater than 1, FK, and FSK. This application can improve audio signal playback effect.

An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.