Voice activity detection using audio and visual analysis
US11232796B2 · kind B2 · utility
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18Claims
0Family size
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Key dates
| Filing date | Oct 14, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Feb 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of detecting voice activity includes performing a video analysis on a frame of video signal to determine a position of a user in the frame and to identify one or more beams of a corresponding audio signal associated with a region including the position of the user. The identified one or more beams of audio signal are analyzed to determine whether voice is present in the frame. When a user is not identified during the video analysis of the frame of video signal, audio analysis is not performed on the corresponding frame of audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.