Method and apparatus for recognizing speech in a noisy environment
US7571095B2 · kind B2 · utility
1Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Sep 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a concomitant method for recognizing speech in a noisy environment are provided. The present method includes applying a first interpolation weight to a clean speech model to produce a weighted clean speech model, applying a second interpolation weight to a noise model to produce a weighted noise model, and deriving a noisy speech model directly from the weighted clean speech model and the weighted noise model. At least one of the first interpolation weight and the second interpolation weight is computed in a maximum likelihood framework.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.