Spatial noise suppression for a microphone array
US7565288B2 · kind B2 · utility
16Cited by
11References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microphone array having at least three microphones provides a captured signal. Spatial noise suppression estimates a desired signal from a captured signal using spatio-temporal distribution of the speech and the noise. In particular, spatial information indicative of at least two quantities of direction are used. A first quantity is based on a first combination of the signals from the at least three microphones, a second quantity is based on a second combination of the signals of the at least three microphones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.