Preclassification of audio material in digital audio compression applications
US6813600B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Oct 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Audio tracks or other portions of a particular type of audio material to be encoded are analyzed to determine a value of at least one coding-related parameter suitable for providing optimal encoding of the particular type of audio material. When a given portion of the audio material is to be encoded for transmission in a perceptual audio coder of a communication system, the value of the coding-related parameter is identified and then utilized in conjunction with the encoding of the given portion. The determined value of the coding-related parameter may be at least a portion of a psychoacoustic model utilized in encoding the given portion of the particular type of audio material in the perceptual audio coder. As another example, the value of the coding-related parameter may be a setting of an audio processor utilized to process the given portion of the particular type of audio material prior to encoding the given portion in the perceptual audio coder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.