7th International Conference on Spoken Language Processing

September 16-20, 2002
Denver, Colorado, USA

A Comparative Study of Adaptation Methods for Speaker Verification

Johnny Mariéthoz, Samy Bengio

Dalle Molle Institute for Perceptual Artificial Intelligence, Switzerland

Real-life speaker verification systems are often implemented using client model adaptation methods, since the amount of data available for each client is often too low to consider plain Maximum Likelihood methods. While the Bayesian Maximum A Posteriori (MAP) adaptation method is commonly used in speaker verification, other methods have proven to be successful in related domains such as speech recognition. This paper reports on experimental comparison between three well-known adaptation methods, namely MAP, Maximum Likelihood Linear Regression, and finally Eigen-Voices. All three methods are compared to the more classical Maximum Likelihood method, and results are given for a subset of the 1999 NIST Speaker Recognition Evaluation database.


Full Paper

Bibliographic reference.  Mariéthoz, Johnny / Bengio, Samy (2002): "A comparative study of adaptation methods for speaker verification", In ICSLP-2002, 581-584.