Characteristics of a Low Reject Mode Speaker Verification System
2002 (English)Conference paper (Refereed)
The performance of a speaker verification (SV) system is normally determined by the false reject (FRR) and false accept (FAR) rates as averages on a population of test speakers. However, information on the FRR distribution is required when estimating the portion of clients that will suffer from an unacceptably high reject rate. This paper studies this distribu- tion in a population using a SV system operating in low reject mode. Two models of the distribution are proposed and compared with test data. An attempt is also made to tune the decision threshold in order to obtain a desired portion of clients having a reject rate lower than a specified value.
Place, publisher, year, edition, pages
Denver, Coplorado, USA, 2002. 1385-1388 p.
speech recognition, VTLN, dynamic modelling
Language Technology (Computational Linguistics)
IdentifiersURN: urn:nbn:se:kth:diva-12255OAI: oai:DiVA.org:kth-12255DiVA: diva2:306706
International Conference on Spoken Language Processing
QC 201105022010-04-082010-03-302011-05-02Bibliographically approved