Method and apparatus for enrollment and evaluation of speaker authentification
US7962336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Mar 31, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and apparatus for enrollment and evaluation of speaker authentication. The method for enrollment of speaker authentication, comprising: generating a plurality of acoustic feature vector sequences respectively based on a plurality of utterances of the same content spoken by a speaker; generating a reference template from said plurality of acoustic feature vector sequences; generating a corresponding pseudo-impostor feature vector sequence for each of said plurality of acoustic feature vector sequences based on a code book that includes a plurality of codes and their corresponding feature vectors; and selecting an optimal acoustic feature subset based on said plurality of acoustic feature vector sequences, said reference template and said plurality of pseudo-impostor feature vector sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.