Selection of coding models for encoding an audio signal
US7739120B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2004 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Sep 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of selecting a respective coding model for encoding consecutive sections of an audio signal, wherein at least one coding model optimized for a first type of audio content and at least one coding model optimized for a second type of audio content are available for selection. In general, the coding model is selected for each section based on signal characteristics indicating the type of audio content in the respective section. For some remaining sections, such a selection is not viable, though. For these sections, the selection carried out for respectively neighboring sections is evaluated statistically. The coding model for the remaining sections is then selected based on these statistical evaluations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.