Exploring the Null Space of the Acoustic-to-Articulatory Inversion Using a Hypercube Codebook
Identifieur interne : 005E31 ( Hal/Checkpoint ); précédent : 005E30; suivant : 005E32Exploring the Null Space of the Acoustic-to-Articulatory Inversion Using a Hypercube Codebook
Auteurs : Slim Ouni [France] ; Yves Laprie [France]Source :
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Abstract
Our acoustic to articulatory inversion method exploits an original codebook representing the articulatory space by hypercubes. The articulatory space is decomposed into regions where the articulatory-to-acoustic mapping is linear. Each region is represented by a hypercube. The inversion procedure retrieves articulatory vectors corresponding to an acoustic entry from the hypercube codebook. The main issue is about how all the possible inverse solutions in a given hypercube could be found. As the dimension of the articulatory space is greater than the dimension of the acoustic space, the corresponding null space is sampled by linear programming to retrieve all the possible solutions. Indeed, the sampling of the null space is a crucial point because it directly controls the smoothness of articulatory trajectories recovered from the original signal. This approach permits more realistic articulatory trajectories to be obtained.
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codebook representing the articulatory space by hypercubes. The articulatory space is decomposed into regions where the articulatory-to-acoustic mapping is linear. Each region is represented by a hypercube. The inversion procedure retrieves articulatory vectors corresponding to an acoustic entry from the hypercube codebook. The main issue is about how all the possible inverse solutions in a given hypercube could be found. As the dimension of the articulatory space is greater than the dimension of the acoustic space, the corresponding null space is sampled by linear programming to retrieve all the possible solutions. Indeed, the sampling of the null space is a crucial point because it directly controls the smoothness of articulatory trajectories recovered from the original signal. This approach permits more realistic articulatory trajectories to be obtained.</div></front></TEI><hal api="V3"><titleStmt><title xml:lang="en">Exploring the Null Space of the Acoustic-to-Articulatory Inversion Using a Hypercube Codebook</title><author role="aut"><persName><forename type="first">Slim</forename><surname>Ouni</surname></persName><email></email><idno type="halauthor">130199</idno><orgName ref="#struct-300009"></orgName><affiliation ref="#struct-2359"></affiliation></author><author role="aut"><persName><forename type="first">Yves</forename><surname>Laprie</surname></persName><email></email><idno type="idhal">yves-laprie</idno><idno type="halauthor">129874</idno><orgName ref="#struct-441569"></orgName><affiliation ref="#struct-2359"></affiliation></author><editor role="depositor"><persName><forename>Publications</forename><surname>Loria</surname></persName><email>publications@loria.fr</email></editor></titleStmt><editionStmt><edition n="v1" type="current"><date type="whenSubmitted">2006-09-26 14:46:37</date><date type="whenModified">2016-05-18 08:56:46</date><date type="whenReleased">2006-09-28 15:22:47</date><date type="whenProduced">2001</date></edition><respStmt><resp>contributor</resp><name key="108626"><persName><forename>Publications</forename><surname>Loria</surname></persName><email>publications@loria.fr</email></name></respStmt></editionStmt><publicationStmt><distributor>CCSD</distributor><idno type="halId">inria-00100540</idno><idno type="halUri">https://hal.inria.fr/inria-00100540</idno><idno type="halBibtex">ouni:inria-00100540</idno><idno type="halRefHtml">7th European Conference on Speech Communication and Technology - EUROSPEECH'2001, 2001, Aalborg, Denmark, 1, pp.277-280, 2001</idno><idno type="halRef">7th European Conference on Speech Communication and Technology - EUROSPEECH'2001, 2001, Aalborg, Denmark, 1, pp.277-280, 2001</idno></publicationStmt><seriesStmt><idno type="stamp" n="INRIA">INRIA - Institut National de Recherche en Informatique et en Automatique</idno><idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno><idno type="stamp" n="INPL">Institut National Polytechnique de Lorraine</idno><idno type="stamp" n="LORIA2">Publications du LORIA</idno><idno type="stamp" n="INRIA-NANCY-GRAND-EST">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LORIA">LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications</idno><idno type="stamp" n="LORIA-TALC" p="LORIA">Traitement automatique des langues et des connaissances</idno><idno type="stamp" n="INRIA2">INRIA 2</idno><idno type="stamp" n="INRIA-LORRAINE">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LABO-LORIA-SET" p="LORIA">LABO-LORIA-SET</idno><idno type="stamp" n="UNIV-LORRAINE">Université de Lorraine</idno></seriesStmt><notesStmt><note type="commentary">Colloque avec actes et comité de lecture. internationale.</note><note type="audience" n="2">International</note><note type="invited" n="0">No</note><note type="popular" n="0">No</note><note type="peer" n="1">Yes</note><note type="proceedings" n="1">Yes</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Exploring the Null Space of the Acoustic-to-Articulatory Inversion Using a Hypercube Codebook</title><author role="aut"><persName><forename type="first">Slim</forename><surname>Ouni</surname></persName><idno type="halAuthorId">130199</idno><orgName ref="#struct-300009"></orgName><affiliation ref="#struct-2359"></affiliation></author><author role="aut"><persName><forename type="first">Yves</forename><surname>Laprie</surname></persName><idno type="idHal">yves-laprie</idno><idno type="halAuthorId">129874</idno><orgName ref="#struct-441569"></orgName><affiliation ref="#struct-2359"></affiliation></author></analytic><monogr><idno type="localRef">A01-R-225 || ouni01a</idno><meeting><title>7th European Conference on Speech Communication and Technology - EUROSPEECH'2001</title><date type="start">2001</date><settlement>Aalborg, Denmark</settlement></meeting><imprint><biblScope unit="volume">1</biblScope><biblScope unit="pp">277-280</biblScope><date type="datePub">2001</date></imprint></monogr></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><keywords scheme="author"><term xml:lang="en">speech</term><term xml:lang="en">inversion</term><term xml:lang="en">articulatory</term><term xml:lang="en">articulatoire</term><term xml:lang="en">acoustique</term><term xml:lang="en">parole</term><term xml:lang="en">codebook</term><term xml:lang="en">acoustic</term><term xml:lang="en">speech production</term><term xml:lang="en">production de la parole</term></keywords><classCode scheme="halDomain" n="info.info-oh">Computer Science [cs]/Other [cs.OH]</classCode><classCode scheme="halTypology" n="COMM">Conference papers</classCode></textClass><abstract xml:lang="en">Our acoustic to articulatory inversion method exploits an original codebook representing the articulatory space by hypercubes. The articulatory space is decomposed into regions where the articulatory-to-acoustic mapping is linear. Each region is represented by a hypercube. The inversion procedure retrieves articulatory vectors corresponding to an acoustic entry from the hypercube codebook. The main issue is about how all the possible inverse solutions in a given hypercube could be found. As the dimension of the articulatory space is greater than the dimension of the acoustic space, the corresponding null space is sampled by linear programming to retrieve all the possible solutions. Indeed, the sampling of the null space is a crucial point because it directly controls the smoothness of articulatory trajectories recovered from the original signal. This approach permits more realistic articulatory trajectories to be obtained.</abstract></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
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