Spherical harmonic decomposition of a sound field detected by an equatorial acoustic sensor array

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United States of America Patent

PATENT NO 11564038
SERIAL NO

17206594

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Abstract

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An audio system includes an equatorial acoustic sensor array (EASA) that may be coupled to an object. The audio system is configured to detect, via the EASA, signals corresponding to a portion of a sound field in a local area. The detected signals are converted into a plurality of corresponding abstract representations that describe the portion of the sound field. Effects of scattering of the object are removed from the abstract representations to create adjusted abstract representations. A set of spherical harmonic (SH) coefficients is determined using the adjusted abstract representations. The set of SH coefficients describe an entirety of the sound field. And the set of SH coefficients and head related transfer functions of a user are used for binaural rendering of the reconstructed sound field to the user.

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META PLATFORMS TECHNOLOGIES LLC1 META WAY MENLO PARK CA 94025

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahrens, Jens Gothenburg, SE 5 68
Alon, David Lou Arugot, IL 4 20
Amengual, Garí Sebastià Vicenç Seattle, US 5 41
Helmholz, Hannes Gothenburg, SE 1 0

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