Reverberation suppressing apparatus and reverberation suppressing method
US9002024B2 · kind B2 · utility
66Cited by
2References
9Claims
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Key dates
| Filing date | Feb 28, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jul 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/305
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reverberation suppressing apparatus, includes: a sound acquiring unit which acquires a sound signal; a reverberation data computing unit which computes reverberation data from the acquired sound signal; a reverberation characteristics estimating unit which estimates reverberation characteristics based on the computed reverberation data; a filter length estimating unit which estimates a filter length of a filter which is used to suppress a reverberation based on the estimated reverberation characteristics; and a reverberation suppressing unit which suppresses the reverberation based on the estimated filter length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.