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Spatio-temporal analysis of spontaneous speech with microphone arrays

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Location Based Speaker Segmentation

Guillaume Lathoud

This paper proposes a technique that segments into speaker turns based on their location, essentially implementing a discrete source tracking system. In many multi-party conversations, such as meetings or teleconferences, the location of participants is re ...

2003

Audio-Visual Speaker Tracking with Importance Particle Filters

Daniel Gatica-Perez, Jean-Marc Odobez, Guillaume Lathoud, Darren Moore

We present a probabilistic methodology for audio-visual (AV) speaker tracking, using an uncalibrated wide-angle camera and a microphone array. The algorithm fuses 2-D object shape and audio information via importance particle filters (I-PFs), allowing for ...

2003

Robust Speaker Change Detection

Hervé Bourlard, Jitendra Ajmera

Most commonly used criteria for speaker change detection like log likelihood ratio (LLR) and Bayesian information criterion (BIC) have an adjustathreshold/penalty parameter to make speaker change decisions. These parameters robust to different acoustic con ...

2003

Small Microphone Array: Algorithms and Hardware

Darren Moore

This report describes the processing algorithms and gives an overview of the hardware for the small microphone array unit in the IM2.RTMAP (Real-time Microphone Array Processing) project. The algorithms include techniques for speech enhancement, speaker lo ...

IDIAP2003

Microphone Array Speech Recognition : Experiments on Overlapping Speech in Meetings

Darren Moore

This paper investigates the use of microphone arrays to acquire and recognise speech in meetings. Meetings pose several interesting problems for speech processing, as they consist of multiple competing speakers within a small space, typically around a tabl ...

IDIAP2002

Location Based Speaker Segmentation

Guillaume Lathoud

IDIAP2002

Audio-Visual Speaker Tracking with Importance Particle Filters

Daniel Gatica-Perez, Jean-Marc Odobez, Guillaume Lathoud, Darren Moore

IDIAP2002

Robust Speaker Change Detection

Hervé Bourlard, Jitendra Ajmera

IDIAP2002

The Elisa'99 Speaker Recognition and Tracking Systems

This article presents the text-independent speaker verification and tracking systems developed by the {ELISA} consortium for the {NIST}'99 speaker recognition campaign. {ELISA} is a consortium grouping European researchers of several laboratories sharing r ...

1999