Acoustic voice activity detection (AVAD) for electronic systems
US12063487B2 · kind B2 · utility
0Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2023 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Apr 4, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/937
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.