Compressing spatial acoustic transfer functions
US11252525B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Dec 21, 2020 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Dec 21, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Transfer functions can describe responses of microphones or ears to sounds at different locations on a sphere. The transfer functions can be compressed by determining, based on transfer functions, a) one or more basis transfer functions, and b) spherical harmonics coefficients that describe variations of the transfer functions with respect to spherical coordinates. Other aspects are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.