Noise reduction devices and noise reduction methods
US9318125B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2013 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise reduction device may be provided. The noise reduction device may include: an input configured to receive an input signal including a representation in a frequency domain of an audio signal, wherein the representation includes a plurality of time frames and a plurality of coefficients for each time frame; a noise detection circuit configured to determine a first indicator being indicative of a bandwidth of a coefficient over at least two time; a noise reduction circuit configured to reduce based on the first indicator a noise component in the audio signal; and an output configured to output an output signal including a representation in the frequency domain of the audio signal with the reduced noise component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.