Method and system for generating an estimated clean speech signal from a noisy speech signal
US5878389A · kind A · utility
27Cited by
17References
26Claims
0Family size
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Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for generating an estimate of a clean speech signal extracts time trajections of short-term parameters from a noisy speech signal to obtain a plurality of frequency components each having a magnitude spectrum and a phase spectrum. The magnitude spectrum is then compressed, filtered and then decompressed to obtain a modified magnitude spectrum. The speech signal is then reconstructed using the original phase spectrum and the modified magnitude spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.