Methods and apparatus for noise estimation
US8380497B2 · kind B2 · utility
7Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Dec 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for noise level/spectrum estimation and speech activity detection. Some embodiments include a probabilistic model to estimate noise level and subsequently detect the presence of speech. These embodiments outperform standard voice activity detectors (VADs), producing improved detection in a variety of noisy environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.