Adaptive noise reduction
US8027743B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2007 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/0204
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for editing digital audio data are provided. In one implementation, a method is provided that includes receiving digital audio data. Input is received selecting a noise threshold identifying a level at which one or more segments of audio data are considered to be noise. The noise threshold is associated with a plurality of parameters of the audio data and applicable to a plurality of frequency bands of the audio data. A first segment and second segment of the digital audio data are analyzed at a selected frequency band to identify noise. When the audio data in the first segment exceeds the noise threshold, the first segment is identified as including a first noise and the audio data is compressed. When audio data in the second segment exceeds the noise threshold, the second segment is identified as including a second noise and the audio data is compressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.