Simple noise suppression model
US7379866B2 · kind B2 · utility
32Cited by
14References
18Claims
0Family size
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Key dates
| Filing date | Mar 11, 2004 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An approach for efficiently reducing background noise from speech signal in real-time applications is presented. A noisy input speech signal is processed through an inverse filter when the spectrum tilt of the input signal is not that of a pure background noise model the noisy input signal is also filtered in order to reduce the spectrum valley areas of the noisy input signal when the background noise is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.