Wind noise reduction device
US8428275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a wind noise reduction device that reduces wind noise contained in an input sound signal to generate a corrected sound signal, when a predetermined band including the band of the wind noise is a first band and a predetermined band higher in frequency than the first band is a second band, the wind noise reduction device includes: a first corrector that has a signal generator generating, based on a sound signal (i) contained in the input sound signal and lying in a band higher in frequency than the first band, a sound signal (ii) lying in the first band and different from a sound signal (iii) contained in the input sound signal and lying in the first band, and that generates a first corrected sound signal based on the sound signal (ii) generated by the signal generator; a second corrector that reduces the signal level of a sound signal (iv) contained in the input sound signal and lying in the second band to thereby generate a second corrected sound signal as a sound signal (v) having the wind noise reduced and lying in the second band; and a corrected sound signal outputter that outputs the corrected sound signal based on the first and second corrected sound signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.