Acoustic activity detection apparatus and method
US9076447B2 · kind B2 · utility
26Cited by
3References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Oct 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Streaming audio is received. The streaming audio includes a frame having plurality of samples. An energy estimate is obtained for the plurality of samples. The energy estimate is compared to at least one threshold. In addition, a band pass estimate of the signal is determined. An energy estimate is obtained for the band-passed plurality of samples. The two energy estimates are compared to at least one threshold each. Based upon the comparison operation, a determination is made as to whether speech is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.