User-Customized Password HMM Based Speaker Verification
Mohamed Faouzi BenZeghiba, Hervé A. Bourlard · Infoscience (Ecole Polytechnique Fédérale de Lausanne) · 2002
is presented. The system has no {\\it a priori} knowledge of passwords. A hybrid HMM/ANN system is used to infer the phonetic transcription of the password. The emission probabilities are then modeled by a multi-Gaussians HMM model. Evaluation experiments, conducted on PolyVar database, showed results comparable with a system where the correct phonetic transcription of the password is known {\\it a priori}.