Method and apparatus for fast on-line automatic speaker/environment adaptation for speech/speaker recognition in the presence of changing environments
US7457745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Feb 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fast on-line automatic speaker/environment adaptation suitable for speech/speaker recognition system, method and computer program product are presented. The system comprises a computer system including a processor, a memory coupled with the processor, an input coupled with the processor for receiving acoustic signals, and an output coupled with the processor for outputting recognized words or sounds. The system includes a model-adaptation system and a recognition system, configured to accurately and efficiently recognize on-line distorted sounds or words spoken with different accents, in the presence of randomly changing environmental conditions. The model-adaptation system quickly adapts standard acoustic training models, available on audio recognition systems, by incorporating distortion parameters representative of the changing environmental conditions or the speaker's accent. By adapting models already available to the new environment, the system does not need separate adaptation training data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.