Patent · US Expired

Method for recognizing speech to avoid over-adaptation during online speaker adaptation

US6882972B2 · kind B2 · utility

46Cited by

4References

13Claims

0Family size

Assignee

Sony International (Europe) GmbH · DE

Inventors

Ralf Kompe · Schkölen, DE
Silke Goronzy · Erlangen, DE
Krzysztof Marasek · Warszawa, PL

Key dates

Filing date	Oct 5, 2001
Grant date	Apr 19, 2005
Priority date	—
Expiry date	May 26, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG10L2015/0635
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

To avoid an over-adaptation of a current acoustic model (CAM) to certain and frequently occuring words for speech phrases during on-line speaker adaptation of speech recognizers it is suggested to count adaptation numbers (aj) for each of said speech phrases (SPj) as numbers of times in that a distinct speech phrase (SPj) has been used as a basis for adapting said current acoustic model (CAM) and further to make the strength of adaptation of the current acoustic model (CAM) on the basis of said distinct speech phrase (SPj) dependent on its specific adaptation number (aj) so as to decrease the influence of frequent speech phrases (SPj) in the received speech flow on the adaptation process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.