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Some Emerging Concepts in Speech Recognition.

Publications associées (45)

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An Online Audio Indexing System

Hervé Bourlard, Jitendra Ajmera

This paper presents overview of an online audio indexing system, which creates a searchable index of speech content embedded in digitized audio files. This system is based on our recently proposed offline audio segmentation techniques. As the data arrives ...

2004

Posteriori Probabilities and Likelihoods Combination for Speech and Speaker Recognition

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This paper investigates a new approach to perform simultaneous speech and speaker recognition. The likelihood estimated by a speaker identification system is combined with the posterior probability estimated by the speech recognizer. So, the joint posterio ...

IDIAP2004

Posteriori Probabilities and Likelihoods Combination for Speech and Speaker Recognition

Hervé Bourlard

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Sector-Based Detection for Hands-Free Speech Enhancement in Cars

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Speech-based command interfaces are becoming more and more common in cars. Applications include automatic dialog systems for hands-free phone calls as well as more advanced features such as navigation systems. However, interferences, such as speech from th ...

IDIAP2004

Mel-Cepstrum Modulation Spectrum (MCMS) Features for Robust ASR

Hervé Bourlard, Hemant Misra, Vivek Tyagi

In this paper, we present new dynamic features derived from the modulation spectrum of the cepstral traje ctories of the speech signal. Cepstral trajectories are projected over the basis of sines and cosines yie lding the cepstral modulation frequency resp ...

IDIAP2003

Mel-Cepstrum Modulation Spectrum (MCMS) Features for Robust ASR

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On Factorizing Spectral Dynamics for Robust Speech Recognition

Hervé Bourlard, Hemant Misra, Vivek Tyagi

In this paper, we introduce new dynamic speech features based on the modulation spectrum. These features, termed Mel-cepstrum Modulation Spectrum (MCMS), map the time trajectories of the spectral dynamics into a series of slow and fast moving orthogonal co ...

IDIAP2003

On Factorizing Spectral Dynamics for Robust Speech Recognition

Hervé Bourlard, Hemant Misra, Vivek Tyagi

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An Online Audio Indexing System

Hervé Bourlard, Jitendra Ajmera

IDIAP2003

A Pragmatic View of the Application of HMM2 for ASR

Hervé Bourlard, Samy Bengio, Katrin Weber

This report investigates the HMM2 approach recently introduced in the framework of automatic speech recognition. HMM2 can be seen as a mixture of HMMs, where a conventional primary HMM (processing a time series of speech data) is supported on a lower level ...

IDIAP2001