User voice detection based on acoustic near field
US10867619B1 · kind B1 · utility
1Cited by
0References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Processing sound received by a device can include receiving a first signal from a first microphone of the device and a second signal from a second microphone of the device, where the first and second microphones capture sounds from a sound field. A ratio between the acoustic pressure and the particle velocity of the sound field can be calculated. In response to the ratio exceeding a threshold, speech signal processing is performed on one or more of the microphone signals. Other aspects are also described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.