Global Patent Index - EP 1072035 A1

EP 1072035 A1 2001-01-31 - THESHOLD SETTING AND TRAINING OF A SPEAKER VERIFICATION SYSTEM

Title (en)

THESHOLD SETTING AND TRAINING OF A SPEAKER VERIFICATION SYSTEM

Title (de)

SCHWELLWERTEINSTELLUNG UND TRAINING EINES SPRECHERVERIFIKATIONSSYSTEMS

Title (fr)

FIXATION DE SEUILS ET APPRENTISSAGE D'UN SYSTEME DE VERIFICATION DE LOCUTEUR

Publication

EP 1072035 A1 (EN)

Application

EP 99924813 A

Priority

  • EP 9902641 W
  • NL 1008930 A

Abstract (en)

[origin: WO9954868A1] Speaker verification system in comprising model building means which build n different speaker models, each based on n-1 tokens, for each model one independent token being available for estimating the distance between the model and an utterance that has not be used to build the model. Estimation means estimate the central tendency of the distance between the speaker's model and newly prodced utterances of the same speaker, and also its variance. The central tendency of distances between the model and utterances is optimised, based on linear interpolation: Th(new) = b * CTi + (1 -b) * CTt, where Th(new) is the optimal threshold, CTi is the central tendency obtained from pre-recorded impostor speech, CTt is the central tendency estimated from the enrolment speech of the new customer, and b is the interpolation parameter, that is optimised using additional pre-recorded utterances not used in estimating CTi.

IPC 1-7 (main, further and additional classification)

G10L 5/06

IPC 8 full level (invention and additional information)

G10L 17/04 (2013.01)

CPC (invention and additional information)

G10L 17/04 (2013.01)

Citation (search report)

See references of WO 9954868A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9954868 A1 19991028; AU 4135199 A 19991108; EP 1072035 A1 20010131

INPADOC legal status


2002-04-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011017

2001-05-23 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010406

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001120

2001-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE