Speaker Verification Experiments

Speaker Verification Experiments on the XM2VTS Database

Experiments with speaker verification over the telephone

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. textdependent 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 Mark...

Experiments in speaker verification using factor analysis likelihood ratios

We report the results of some speaker verification experiments on the NIST 1999 and NIST 2000 test sets using factor analysis likelihood ratio statistics. For the experiments on the 1999 test set we had to use a mismatched training set, namely Phases 1 and 2 of the Switchboard II corpus, to train the factor analysis model. Our results on this test set are are comparable to (but not better than)...

Text-prompted speaker verification experiments with phoneme specific MLPs

The aims of the study described in this paper are (1) to assess the relative speaker discriminant properties of phonemes and (2) to investigate the importance of the temporal frame-to-frame information for speaker modelling in the framework of a text-prompted speaker verification system using Hidden Markov Models (HMMs) and Multi Layer Perceptrons (MLPs). It is shown that, with similar experime...

Experiments in SVM-based Speaker Verification Using Short Utterances

This paper investigates the effects of limited speech data in the context of speaker verification using the Gaussian mixture model (GMM) mean supervector support vector machine (SVM) classifier. This classifier provides state-of-the-art performance when sufficient speech is available, however, its robustness to the effects of limited speech resources has not yet been ascertained. Verification p...