Method and apparatus for feature domain joint channel and additive noise compensation
US7089182B2 · kind B2 · utility
11Cited by
2References
19Claims
0Family size
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Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0216
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for performing noise adaptation of a target speech signal input to a speech recognition system, where the target speech signal contains both additive and convolutional noises. The method includes estimating an additive noise bias and a convolutional noise bias; in the target speech signal; and jointly compensating the target speech signal for the additive and convolutional noise biases in a feature domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.