Apparatuses and methods for multi-channel signal compression during desired voice activity detection
US9792927B2 · kind B2 · utility
4Cited by
1References
45Claims
0Family size
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Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods are described to identify desired audio. A first input of an apparatus is configured to receive a main signal. A second input of the apparatus is configured to receive a reference signal. A normalizer is configured to normalize a compressed main signal by a compressed reference signal to create a normalized main signal. A single channel normalized voice threshold comparator is configured to receive as an input the normalized main signal and to output a desired voice activity detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.