A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Embodiments are disclosed for disabling/re-enabling head tracking for spatial audio applications. In an embodiment, a method comprises: obtaining, using one or more processors of an auxiliary device worn by a user, motion data; tracking, using the one or more processors, the user's head based at least in part on the motion data; determining, using the one or more processors, whether or not the user is walking based at least in part on the motion data; in accordance with determining that the user is walking, determining if a source device configured to deliver spatial audio to the auxiliary device is static for a specified period of time; and in accordance with determining that the user is walking and the source device is static for the specified period of time, disabling the head tracking.

A trauma scene monitoring system includes a medic-worn illumination device, a casualty-worn informatics system, and a remote monitoring station. The illumination device includes a frame with boom-mounted light sources positioned below the wearer's eyes near the zygomatic bones, thus orienting the light sources to project light in the direction of the wearer's view. Also included are audio/video means to capture audio/video information from a scene attended by the medic, and a telemetry unit to transmit that information to the remote monitoring station. The casualty-worn informatics system is integrated within a headband worn by a monitored individual. The informatics system includes sensors to provide the monitored individual's vital statistics and a telemetry unit to transmit data concerning the monitored individual to the remote monitoring station. At the remote monitoring station, receiving and presentation stations provide views of the data concerning the monitored individual and audio/video data from the medic-worn illumination device.

An audio apparatus comprises a receiver (201) receiving data describing an audio scene. The data comprises audio data for a set of audio elements corresponding to audio sources in the scene and further includes metadata comprising at least an audio rendering property indicator for a first audio element of the set of audio elements. A first renderer (205) renders audio elements by generating a first set of audio signals for a set of loudspeakers and a second renderer (207) renders audio elements by generating a second set of audio signals for a headphone. Further, a selector (209) is arranged to select between the first renderer and the second renderer for rendering of at least a first part of the first audio element in response to the first audio rendering property indicator. The approach may for example provide improved virtual reality experiences using loudspeakers and headphone hybrid rendering.

An audio apparatus comprises a receiver (201) receiving data describing an audio scene. The data comprises audio data for a set of audio elements corresponding to audio sources in the scene and further includes metadata comprising at least an audio rendering property indicator for a first audio element of the set of audio elements. A first renderer (205) renders audio elements by generating a first set of audio signals for a set of loudspeakers and a second renderer (207) renders audio elements by generating a second set of audio signals for a headphone. Further, a selector (209) is arranged to select between the first renderer and the second renderer for rendering of at least a first part of the first audio element in response to the first audio rendering property indicator. The approach may for example provide improved virtual reality experiences using loudspeakers and headphone hybrid rendering.

A wireless earphone comprises a transceiver circuit for receiving streaming audio from a data source over a local ad hoc wireless network. When the data source and the earphone are out of range, they transition automatically to an infrastructure wireless network. If there is no common infrastructure wireless network for both the data source and the speakerphone set, the earphone connects to a host server via an available wireless network.

A wireless earphone comprises a transceiver circuit for receiving streaming audio from a data source over a local ad hoc wireless network. When the data source and the earphone are out of range, they transition automatically to an infrastructure wireless network. If there is no common infrastructure wireless network for both the data source and the speakerphone set, the earphone connects to a host server via an available wireless network.

A computer program product having a non-transitory computer-readable medium including computer program logic encoded thereon that, when performed on a surround sound audio system that is configured to render left front, right front, and center front audio signals, and also render left and right near-field binaurally-encoded audio signals, causes the surround sound audio system to develop the left and right near-field binaurally-encoded audio signals, and provide the left near-field binaurally-encoded audio signal to a left non-occluding near-field driver and provide the right near-field binaurally-encoded audio signal to a right non-occluding near-field driver.

A computer program product having a non-transitory computer-readable medium including computer program logic encoded thereon that, when performed on a surround sound audio system that is configured to render left front, right front, and center front audio signals, and also render left and right near-field binaurally-encoded audio signals, causes the surround sound audio system to develop the left and right near-field binaurally-encoded audio signals, and provide the left near-field binaurally-encoded audio signal to a left non-occluding near-field driver and provide the right near-field binaurally-encoded audio signal to a right non-occluding near-field driver.

Described is a device for the reproduction of three-dimensional sound, in particular headphones, including a pair of specular pads, having a shape such as to substantially form a portion of geoid or a hemisphere where each pad defines a concave inner surface having a plurality of recesses distributed according to a predetermined distribution. The device includes a plurality of loudspeakers, designed for sound reproduction and housed in these recesses. The device also includes a control unit, connected to the plurality of loudspeakers, configured to perform an analysis of a digital sound source and to determine a sound reproduction configuration of the loudspeakers as a function of the analysis of the sound source.