Voice activity detection using a soft decision mechanism
US11670325B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | May 21, 2020 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Apr 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Voice activity detection (VAD) is an enabling technology for a variety of speech based applications. Herein disclosed is a robust VAD algorithm that is also language independent. Rather than classifying short segments of the audio as either “speech” or “silence”, the VAD as disclosed herein employees a soft-decision mechanism. The VAD outputs a speech-presence probability, which is based on a variety of characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.