Speaker adaptation device and speech recognition device
US6223159A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/144
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Voice feature quantity extractor extracts feature vector time-series data by acoustic feature quantity analysis of the speaker's voice. Reference speaker-dependent conversion factor computation device computes reference speaker-dependent conversion factors through use of a reference speaker voice data feature vector and an initial standard pattern. The reference speaker-dependent conversion factors are stored in a reference speaker-dependent conversion factor storage device. Speaker-dependent conversion factor selector selects one or more sets of reference speaker-dependent conversion factors stored in the reference speaker-dependent conversion factor storage device. Speaker-dependent conversion factor computation device computes speaker-dependent conversion factors, through use of the selected one or more sets of reference speaker-dependent conversion factors. Speaker-dependent standard pattern computation device converts parameters of the initial standard pattern, through use of the speaker-dependent conversion factors, and thus-converted parameters are output as a speaker-dependent standard pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.