Audio processing circuit and method for reducing noise in an audio signal
US10181329B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio processing device includes a first microphone configured to receive a first signal a second microphone configured to receive a second signal, a noise reduction gain determination circuit configured to determine a noise reduction gain based on the first signal and the second signal, a noise reduction circuit configured to attenuate the first signal based on the determined noise reduction gain, and an output circuit configured to output the attenuated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.