Segmentation du bruit d'explosion des occlusives

Yves Laprie 1 Anne Bonneau 1
1 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : This paper investigates burst segmentation for the evaluation of acoustic cues used to identify unvoiced French stops. Unlike works which utilize a fixed length window, our approach consists in segmenting bursts into transient and frication noise. The transient is found by minimizing the sum of spectral variances of transient and frication noise over the burst. The spectral variation criterion has the advantage of being sensitive both to energy deviations and spectral variations. Additional correction procedure augment the robustness of the segmentation against the presence of spurious noises during the closure and the determination of the voicing onset with delay. The relevance of our segmentation method has been evaluated by comparing the characteristics of the main spectral peak (energy prominence versus frequency) in the transient segmented by our method with those of all burst. Our experiments showed that bursts segmented by our method allow a better discrimination between the three places of articulation.
Type de document :
Communication dans un congrès
XXIVe Journées d'Etude sur la Parole - JEP'2002, Jun 2002, Nancy, France, 4 p, 2002
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Soumis le : jeudi 19 octobre 2006 - 09:02:32
Dernière modification le : jeudi 11 janvier 2018 - 06:19:55
Document(s) archivé(s) le : mercredi 29 mars 2017 - 12:58:15

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Yves Laprie, Anne Bonneau. Segmentation du bruit d'explosion des occlusives. XXIVe Journées d'Etude sur la Parole - JEP'2002, Jun 2002, Nancy, France, 4 p, 2002. 〈inria-00107594〉

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