Normalizing signal energy for speech in fluctuating noise
US10149070B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/43
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An approach to audio processing aims to improve intelligibility by amplifying time segments of an input signal when the level of the signal falls below a long-term average level of the input signal, for instance, introducing a time-varying gain such that the signal level of the amplified segment matches the long-term average level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.