Noise suppression device
US9368097B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | May 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A noise suppression device includes an input signal analyzer that analyzes the harmonic structure and periodicity of a plurality of input signals on the basis of power spectra of a plurality of input signals, a power spectrum synthesizer that synthesizes the power spectra of the plurality of input signals to generate a synthesized power spectrum according to the result of the analysis by the input signal analyzer, a noise suppression amount calculator that calculates an amount of noise suppression on the basis of the synthesized power spectrum and an estimated noise spectrum estimated from the input signals, and a power spectrum suppressor that carries out noise suppression on the synthesized power spectrum by using the calculated amount of noise suppression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.