In this paper we present a study on speaker verification showing achievable performance levels for both high quality speech and telephone speech and for two operational modes, i.e. text-dependent and text-independent speaker verification. A statistical modeling approach is taken, where for text independent verification the talker is viewed as a source of phones, modeled by a fully connected Markov chain, where the lexical and syntactic structures of the language are approximated by local phonotactic constraints. A first series of experiments were carried out on high quality speech from the BREF corpus to validate this approach and resulted in an a posteriori equal error rate of 0.3% in text-dependent as well as in text-independent mode. A second series of experiments were carried out on a telephone corpus recorded specifically for speaker verification algorithm development. On this data, the lowest equal error rate is 2.9% for the text-dependent mode when 2 trials are allowed per attempt and with a minimum of 2s of speech per trial.
Cite as: Gauvain, J.-L., Lamel, L., Prouts, B. (1995) Experiments with speaker verification over the telephone. Proc. 4th European Conference on Speech Communication and Technology (Eurospeech 1995), 651-654, doi: 10.21437/Eurospeech.1995-158
@inproceedings{gauvain95_eurospeech,
author={Jean-Luc Gauvain and Lori Lamel and B. Prouts},
title={{Experiments with speaker verification over the telephone}},
year=1995,
booktitle={Proc. 4th European Conference on Speech Communication and Technology (Eurospeech 1995)},
pages={651--654},
doi={10.21437/Eurospeech.1995-158}
}