Microphone array based pickup method and system
US11302341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a microphone array based pickup method, comprising: performing voice activation detection using one channel voice signal among multichannel voice signals picked up and output by a microphone array, and determining if a voice activation signal occurs; locating the voice source by using the multichannel voice signals output by the microphone array to obtain the voice source locating direction; enhancing a voice signal in the voice source locating direction to obtain an enhanced voice signal; conducting voice wakeup detection on the enhanced voice signal and determining if a voice wakeup is detected; picking up and outputting the multichannel voice signals by the microphone array; Step 6: processing the multichannel voice signals picked up by the microphone array into one channel enhanced voice, and outputting the one channel enhanced voice as a finally picked up voice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.