Fixed rate speech compression system and method
US6959274B1 · kind B1 · utility
32Cited by
17References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jul 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention improves the encoding and decoding of speech by focusing the encoding on the perceptually important characteristics of speech. The system analyzes selected features of an input speech signal, and first performing a common frame based speech coding of an input speech signal. The system then performs a speech coding based on either a first speech coding mode or a second speech coding mode. The selection of a mode is based on characteristics of the input speech signal. The first speech coding mode uses a first framing structure and the second speech coding mode uses a second framing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.