Speech recognition system including manner discrimination
US6671668B2 · kind B2 · utility
17Cited by
8References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speech recognition system is trained to be sensitive not only to the actual spoken text, but also to the manner in which the text is spoken, for example, whether something is said confidently, or hesitatingly. In the preferred embodiment, this is achieved by using a Hidden Markov Model (HMM) as the recognition engine, and training the HMM to recognise different styles of input. This approach finds particular application in the telephony voice processing environment, where short caller responses need to be recognised, and the system can then react in a fashion appropriate to the tone or manner in which the caller has spoken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.