Formant extraction on the basis of LPC information developed for individual partial bandwidths
US5463716A · kind A · utility
14Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jan 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/15
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A frequency bandwidth of a speech signal is divided into a plurality of partial bandwidths. Formant information is extracted on the basis of LPC information developed for the respective partial bandwidths. At least one partial bandwidth may overlap upon the preceding bandwidth. The boundary frequencies of the partial bandwidths can be determined based on the frequency envelope of the speech signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.