Content based noise suppression
US9275625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2013 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Dec 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a noise signal having identifiable content, a content source is accessed to obtain a copy of the noise signal. An audio canceller can generate a processed audio signal, having an attenuated noise signal, based on comparing the copy of the noise signal to the input audio signal. Additionally or alternatively, data may be communicated on a communication channel to a separate media device to receive at least a portion of the copy of the noise signal from the separate media device, or to receive content-identification data corresponding to the content source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.