Method for detection of own voice activity in a communication device
US7512245B2 · kind B2 · utility
40Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2004 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jun 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02166
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In the method according to the invention a signal processing unit receives signals from at least two microphones worn on the user's head, which are processed so as to distinguish as well as possible between the sound from the user's mouth and sounds originating from other sources. The distinction is based on the specific characteristics of the sound field produced by own voice, e.g. near-field effects (proximity, reactive intensity) or the symmetry of the mouth with respect to the user's head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.