Mitigating the impact of nonlinear echos by dynamic range compression
US8660676B2 · kind B2 · utility
4Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Oct 16, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Mitigation of nonlinear echoes by dynamic range compression may be provided. An audio output may be evaluated to determine whether nonlinear echoes are interfering with an audio signal. In order to reduce such nonlinear echoes, a dynamic range compression algorithm may be applied to the audio signal prior to output. The signal may be modified according to a compression wave and/or subjected to an attenuation factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.