Adaptive microphone array compensation
US9363598B1 · kind B1 · utility
14Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2014 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio-based system may perform audio beamforming and/or sound source localization based on multiple input microphone signals. Each input microphone signal can be calibrated to a reference based on the energy of the microphone signal in comparison to an energy indicated by the reference. Specifically, respective gains may be applied to each input microphone signal, wherein each gain is calculated as a ratio of a energy reference to the energy of the input microphone signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.