Compact representations of the articulatory-to-acoustic mapping
Identifieur interne : 001636 ( Hal/Curation ); précédent : 001635; suivant : 001637Compact representations of the articulatory-to-acoustic mapping
Auteurs : Blaise Potard [France] ; Yves Laprie [France]Source :
English descriptors
Abstract
Articulatory codebooks are very often used to represent the articulatory-to-acoustic mapping. They thus need to be compact while offering a very good acoustic precision. This paper presents a method of articulatory codebook construction more general than that of Ouni in the sense that the articulatory-to-acoustic mapping is approximated by multivariable polynomials. The second major contribution concerns the subdivision process which finds out the most efficient subdivision, i.e. that which minimizes the size of the codebook while guarantying a very good acoustic precision. Experiments carried out show that the size of the codebook can be divided by a factor of 20, and simultaneously, the acoustic precision can improved by a factor of 2 by using second order polynomials together with this new construction strategy.
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<front><div type="abstract" xml:lang="en">Articulatory codebooks are very often used to represent the articulatory-to-acoustic mapping. They thus need to be compact while offering a very good acoustic precision. This paper presents a method of articulatory codebook construction more general than that of Ouni in the sense that the articulatory-to-acoustic mapping is approximated by multivariable polynomials. The second major contribution concerns the subdivision process which finds out the most efficient subdivision, i.e. that which minimizes the size of the codebook while guarantying a very good acoustic precision. Experiments carried out show that the size of the codebook can be divided by a factor of 20, and simultaneously, the acoustic precision can improved by a factor of 2 by using second order polynomials together with this new construction strategy.</div>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Compact representations of the articulatory-to-acoustic mapping</title>
<author role="aut"><persName><forename type="first">Blaise</forename>
<surname>Potard</surname>
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<email>Blaise.Potard@loria.fr</email>
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<author role="crp"><persName><forename type="first">Yves</forename>
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<monogr><meeting><title>INTERSPEECH 2007</title>
<date type="start">2007-08-27</date>
<settlement>Antwerp</settlement>
<country key="BE">Belgium</country>
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<imprint><biblScope unit="pp">2481-2483</biblScope>
<date type="datePub">2007</date>
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<profileDesc><langUsage><language ident="en">English</language>
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<textClass><keywords scheme="author"><term xml:lang="en">articulatory processing</term>
<term xml:lang="en">speech processing</term>
<term xml:lang="en">inversion</term>
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<abstract xml:lang="en">Articulatory codebooks are very often used to represent the articulatory-to-acoustic mapping. They thus need to be compact while offering a very good acoustic precision. This paper presents a method of articulatory codebook construction more general than that of Ouni in the sense that the articulatory-to-acoustic mapping is approximated by multivariable polynomials. The second major contribution concerns the subdivision process which finds out the most efficient subdivision, i.e. that which minimizes the size of the codebook while guarantying a very good acoustic precision. Experiments carried out show that the size of the codebook can be divided by a factor of 20, and simultaneously, the acoustic precision can improved by a factor of 2 by using second order polynomials together with this new construction strategy.</abstract>
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