Method and apparatus for estimating noise by using harmonics of voice signal
US8135586B2 · kind B2 · utility
2Cited by
13References
9Claims
0Family size
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Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jan 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method and an apparatus for estimating noise included in a sound signal during sound signal processing. The method includes estimating harmonics components in a frame of an input sound signal; using the estimated harmonics components, computing a Voice Presence Probability (VPP) on the frame of the input sound signal; determining a weight of an equation necessary to estimate a noise spectrum, depending on the computed VPP; and using the determined weight and the equation necessary to estimate a noise spectrum, estimating the noise spectrum, and updating the noise spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.