Method for voice signal coding and/or decoding by means of a long term prediction and a multipulse excitation signal
US6246979A · kind A · utility
23Cited by
8References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method for voice signal coding and/or decoding. According to this method, a voice signal analysis for determining the prediction parameters is carried out from a digital voice signal. An excitation signal component (ENtp) is determined from an adaptive code book (3) built from a delayed integral excitation signal (Ev). Further, a multipulse component of the excitation signal is determined (4) by minimising the effect of the weighting filtered difference between the signal resulting from the respective excitation signal and the input voice signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.