The automatic speech recognition engine ESPERE : experiments on telephone speech
Identifieur interne : 002B48 ( Crin/Corpus ); précédent : 002B47; suivant : 002B49The automatic speech recognition engine ESPERE : experiments on telephone speech
Auteurs : Dominique Fohr ; Odile Mella ; Christophe AntoineSource :
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Abstract
This paper presents our automatic speech recognition engine ESPERE and several results obtained from experiments on telephone speech. ESPERE (Engine for SPEech REcognition) is a HMM-based toolbox for speech recognition allowing the user to choose the modeled unit (word, phone, triphone), define the topology of every Hidden Markov Model, train the models with the Baum-Welch algorithm and evaluate the recognition accuracy on speech databases. To validate the ESPERE toolbox, we have conducted tests on real world data : the recognition of a three-digit code to access a call center. We have investigated the influence of some parameters and some preprocessing algorithms. Finally, combining the best parameters, the recognition score reaches 96.4% at the word level and 92.1% at the sentence level.
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<sourceDesc><biblStruct><analytic><title xml:lang="en">The automatic speech recognition engine ESPERE : experiments on telephone speech</title>
<author><name sortKey="Fohr, Dominique" sort="Fohr, Dominique" uniqKey="Fohr D" first="Dominique" last="Fohr">Dominique Fohr</name>
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<author><name sortKey="Mella, Odile" sort="Mella, Odile" uniqKey="Mella O" first="Odile" last="Mella">Odile Mella</name>
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<author><name sortKey="Antoine, Christophe" sort="Antoine, Christophe" uniqKey="Antoine C" first="Christophe" last="Antoine">Christophe Antoine</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>hmm</term>
<term>speech recognition</term>
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<front><div type="abstract" xml:lang="en" wicri:score="2405">This paper presents our automatic speech recognition engine ESPERE and several results obtained from experiments on telephone speech. ESPERE (Engine for SPEech REcognition) is a HMM-based toolbox for speech recognition allowing the user to choose the modeled unit (word, phone, triphone), define the topology of every Hidden Markov Model, train the models with the Baum-Welch algorithm and evaluate the recognition accuracy on speech databases. To validate the ESPERE toolbox, we have conducted tests on real world data : the recognition of a three-digit code to access a call center. We have investigated the influence of some parameters and some preprocessing algorithms. Finally, combining the best parameters, the recognition score reaches 96.4% at the word level and 92.1% at the sentence level.</div>
</front>
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<BibTex type="inproceedings"><ref>fohr00a</ref>
<crinnumber>A00-R-257</crinnumber>
<category>3</category>
<equipe>PAROLE</equipe>
<author><e>Fohr, Dominique</e>
<e>Mella, Odile</e>
<e>Antoine, Christophe</e>
</author>
<title>The automatic speech recognition engine ESPERE : experiments on telephone speech</title>
<booktitle>{ICSLP, Pékin, China}</booktitle>
<year>2000</year>
<month>Oct</month>
<keywords><e>speech recognition</e>
<e>hmm</e>
<e>telephone speech</e>
</keywords>
<abstract>This paper presents our automatic speech recognition engine ESPERE and several results obtained from experiments on telephone speech. ESPERE (Engine for SPEech REcognition) is a HMM-based toolbox for speech recognition allowing the user to choose the modeled unit (word, phone, triphone), define the topology of every Hidden Markov Model, train the models with the Baum-Welch algorithm and evaluate the recognition accuracy on speech databases. To validate the ESPERE toolbox, we have conducted tests on real world data : the recognition of a three-digit code to access a call center. We have investigated the influence of some parameters and some preprocessing algorithms. Finally, combining the best parameters, the recognition score reaches 96.4% at the word level and 92.1% at the sentence level.</abstract>
</BibTex>
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