Speech coding system with time-domain noise attenuation
US7020605B2 · kind B2 · utility
47Cited by
8References
68Claims
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Key dates
| Filing date | Feb 13, 2001 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Mar 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0364
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speech coding system is provided with time-domain noise attenuation. The speech coding system has an encoder operatively connected to a decoder via a communication medium. A preprocessor processes a digitized speech signal from an analog-to-digital converter. Speech coding systems are used to encode and decode a bitstream. Gains from the speech coding are adjusted by a gain factor Gf that provides time-domain background noise attenuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.