Prasad, Abhay and Periyasamy, Vijitha and Ghosh, Prasanta Kumar (2015) ESTIMATION OF THE INVARIANT AND VARIANT CHARACTERISTICS IN SPEECH ARTICULATION AND ITS APPLICATION TO SPEAKER IDENTIFICATION. In: 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), APR 19-24, 2014, Brisbane, AUSTRALIA, pp. 4265-4269.
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Abstract
Speech articulation varies across speakers for producing a speech sound due to the differences in their vocal tract morphologies, though the speech motor actions are executed in terms of relatively invariant gestures 1]. While the invariant articulatory gestures are driven by the linguistic content of the spoken utterance, the component of speech articulation that varies across speakers reflects speaker-specific and other paralinguistic information. In this work, we present a formulation to decompose the speech articulation from multiple speakers into the variant and invariant aspects when they speak the same sentence. The variant component is found to be a better representation for discriminating speakers compared to the speech articulation which includes the invariant part. Experiments with real-time magnetic resonance imaging (rtMRI) videos of speech production from multiple speakers reveal that the variant component of speech articulation yields a better frame-level speaker identification accuracy compared to the speech articulation as well as acoustic features by 29.9% and 9.4% (absolute) respectively.
Item Type: | Conference Proceedings |
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Series.: | International Conference on Acoustics Speech and Signal Processing ICASSP |
Publisher: | IEEE |
Additional Information: | Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA |
Keywords: | speech articulation; invariant gestures; speaker identification |
Department/Centre: | Division of Electrical Sciences > Electrical Engineering |
Date Deposited: | 19 Aug 2016 09:36 |
Last Modified: | 19 Aug 2016 09:36 |
URI: | http://eprints.iisc.ac.in/id/eprint/54295 |
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