Technique for modifying reference vector quantized speech feature signals
US5377301A · kind A · utility
240Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal processing arrangement uses a codebook of first vector quantized speech feature signals formed responsive to a large collection of speech feature signals. The codebook is altered by combining the first speech feature signals of the codebook with second speech feature signals generated responsive to later input speech patterns during normal speech processing. A speaker recognition template can be updated in this fashion to take account of change which may occur in the voice and speaking characteristics of a known speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.