Directional audio capture adaptation based on alternative sensory input
US9197974B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jan 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for audio processing of an acoustic signal captured by at least one microphone based on analysis of a video signal associated with the acoustic signal is provided. The video signal may be dynamically processed and analyzed in real time by the system to locate one or more sound sources and to determine distances between the sound sources and the at least one microphone. This information may be used to perform selective noise suppression, noise cancellation, or selective adjustment of acoustic signal components or energy levels acoustic signal components such that noise or unrelated acoustic signal components associated with sound sources not associated with located sound sources are suppressed or filtered. The video signal analysis may track sound source movement for dynamic steering of an acoustic beam towards the sound source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.