Noise suppression device
US7043030B1 · kind B1 · utility
38Cited by
3References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2000 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Mar 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0264
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise suppressor device for attaining perceptually preferable noise suppression is disclosed. The device minimizes reduction in quality even in the presence of increased noises. The device is adaptable for use in voice communications systems and speech recognition systems employed in a variety of kinds of noisy environments. The device includes a spectrum subtracter and a spectrum amplitude suppressor that operate on the basis of perceptual weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.