Speaker verification and speaker identification based on a priori knowledge
US6697778B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Sep 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Client speaker locations in a speaker space are used to generate speech models for comparison with test speaker data or test speaker speech models. The speaker space can be constructed using training speakers that are entirely separate from the population of client speakers, or from client speakers, or from a mix of training and client speakers. Reestimation of the speaker space based on client environment information is also provided to improve the likelihood that the client data will fall within the speaker space. During enrollment of the clients into the speaker space, additional client speech can be obtained when predetermined conditions are met. The speaker distribution can also be used in the client enrollment step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.