System and process for sound source localization using microphone array beamsteering
US7394907B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2003 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | May 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and process for sound source localization (SSL) utilizing beamsteering is presented. The present invention provides for improved beamsteering with less drain on system resources while providing accurate, real time results. To accomplish this, the present SSL system and process rejects as much as possible extraneous audio frames and analyzes only those frames exhibiting a well defined sound source. In addition, the number of beams is reduced as much as possible to save on processing time, but a full scan of the working volume is still made with the beams. And finally, interpolation is used to increase the precision of the technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.