Method for performing microphone conversions in a speech recognition system
US6751588B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for performing microphone conversions in a speech recognition system comprises a speech module that simultaneously captures an identical input signal using both an original microphone and a final microphone. The original microphone is also used to record an original training database. The final microphone is also used to capture input signals during normal use of the speech recognition system. A characterization module then analyzes the recorded identical input signal to generate characterization values that are subsequently utilized by a conversion module to convert the original training database into a final training database. A training program then uses the final training database to train a recognizer in the speech module in order to optimally perform a speech recognition process, in accordance with the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.