Multiple range dynamic level control
US9171552B1 · kind B1 · utility
23Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 17, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Jul 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0316
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio-based system may perform dynamic level adjustment by detecting voice activity in an input signal and evaluating voice levels during periods of voice activity. The current voice level is compared to a plurality of thresholds to determine a corresponding gain strategy, and the input signal is scaled in accordance with this gain strategy. Further adjustment to the signal is performed to reduce output clipping that might otherwise be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.