Speech processing apparatus and method for enhancing speech information and suppressing noise in spectral divisions of a speech signal
US7286980B2 · kind B2 · utility
22Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | May 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speech processing apparatus and method may identify divisions of a signal spectrum as having a speech component or having no speech component. A comb filter is generated, based on a high-accuracy speech pitch obtained in the identified speech component divisions, for enhancing speech information in the speech component divisions. The comb filter is applied to the speech component divisions to suppress noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.