Audio clipping prevention
US9325286B1 · kind B1 · utility
45Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jun 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G7/007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Audio clipping is prevented by attenuating an audio signal in accordance with values retrieved from a gain table. Corresponding amplitude values of a stereo audio signal are evaluated to determine a maximum of the values. The amount by which the maximum exceeds a predetermined threshold is used to calculate a table index, which is used to retrieve a gain value from the gain table. The gain value is then applied to the audio signal. The gain table is configured so that increasing index values produce decreasing gain values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.