Sökning: "Informations- och språkteknologi"

Hittade 2 avhandlingar innehållade orden Informations- och språkteknologi.

1. 1. Automatic speaker verification on site and by telephone: methods, applications and assessment

   Författare :Håkan Melin; Björn Granström; Mats Blomberg; Josef Bigün; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; speaker recognition; speaker verification; speech technology; biometrics; access control; speech corpus; variance estimation; Information and language technology; Informations- och språkteknologi;

   Sammanfattning : Speaker verification is the biometric task of authenticating a claimed identity by means of analyzing a spoken sample of the claimant's voice. The present thesis deals with various topics related to automatic speaker verification (ASV) in the context of its commercial applications, characterized by co-operative users, user-friendly interfaces, and requirements for small amounts of enrollment and test data. LÄS MER

3. 2. Accounting for Individual Speaker Properties in Automatic Speech Recognition

   Författare :Daniel Elenius; Björn Granström; Mats Blomberg; Torjbjörn Svendsen; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MAP; MLLR; VTLN; speaker characteristics; dynamic modeling; child; Information and language technology; Informations- och språkteknologi;

   Sammanfattning : In this work, speaker characteristic modeling has been applied in the fields of automatic speech recognition (ASR) and automatic speaker verification (ASV). In ASR, a key problem is that acoustic mismatch between training and test conditions degrade classification per- formance. LÄS MER