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Joint Speaker Verification and Anti-Spoofing in the i-Vector Space

Related publications (40)

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A Unified Framework for Score Normalization Techniques Applied to Text Independent Speaker Verification

Samy Bengio

The purpose of this paper is to unify several of the state-of-the-art score normalization techniques applied to text-independent speaker verification systems. We propose a new framework for this purpose. The two well-known Z- and T-normalization techniques ...

2005

Can a Professional Imitator Fool a GMM-Based Speaker Verification System?

Samy Bengio

This paper presents an attempt at assessing empirically how a state-of-the-art text-independent speaker verification system behaves when confronted to imposting attempts from a professional imitator who perfectly knows how to imitate in particular the clie ...

IDIAP2005

A Unified Framework for Score Normalization Techniques Applied to Text Independent Speaker Verification

Samy Bengio

IDIAP2004

Using pitch frequency information in speech recognition

Hervé Bourlard

Automatic Speech Recognition systems typically use smoothed spectral features as acoustic observations. In recent studies, it has been shown that complementing these standard features with pitch frequency could improve the system performance of the system. ...

IDIAP2003

Using pitch frequency information in speech recognition

Hervé Bourlard

2003

Modelling auxiliary information (pitch frequency) in hybrid HMM/ANN based ASR systems

Hervé Bourlard

Automatic Speech Recognition systems typically use smoothed spectral features as acoustic observations. In recent studies, it has been shown that complementing these standard features with auxiliary information could improve the performance of the system. ...

IDIAP2002

User Customized HMM/ANN Based Speaker Verification

Hervé Bourlard

In this paper, we describe a new speaker verification approach, using a hybrid HMM/ANN system, and accommodating user customized passwords. This system is exploiting the high phonetic recognition rates usually achieved by HMM/ANN speaker independent system ...

IDIAP2001

Behavior of a Bayesian adaptation method for incremental enrollment in speaker verification

Jean Hennebert

Classical adaptation approaches are generally used for speaker or environment adaptation of speech recognition systems. In this paper, we use such techniques for the incremental training of client models in a speaker verification system. The initial model ...

2000

Behavior of a Bayesian adaptation method for incremental enrollment in speaker verification

Jean Hennebert

IDIAP2000

Reconnaissance et transformation de locuteurs

Dominique Genoud

This PhD thesis tries to understand how to analyse, decompose, model and transform the vocal identity of a human when seen through an automatic speaker recognition application. It starts with an introduction explaining the properties of the speech signal a ...

EPFL1999