Enhancements of Viterbi search for fast unit selection synthesis

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dc.contributor.authorTihelka, Daniel
dc.contributor.authorKala, Jiří
dc.contributor.authorMatoušek, Jindřich
dc.date.accessioned2015-12-11T12:52:22Z
dc.date.available2015-12-11T12:52:22Z
dc.date.issued2010
dc.description.abstract-translatedThe paper describes the optimisation of Viterbi search used in unit selection TTS, since with a large speech corpus necessary to achieve a high level of naturalness, the performance still suffers. To improve the search speed, the combination of sophisticated stopping schemes and pruning thresholds is employed into the baseline search. The optimised search is, moreover, extremely flexible in configuration, requiring only three intuitively comprehensible coefficients to be set. This provides the means for tuning the search depending on device resources, while it allows reaching significant performance increase. To illustrate it, several configuration scenarios, with speed-up ranging from 6 to 58 times, are presented. Their impact on speech quality is verified by CCR listening test, taking into account only the phrases with the highest number of differences when compared to the baseline search.en
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationTIHELKA, Daniel; KALA, Jiří; MATOUŠEK, Jindřích. Enhancements of Viterbi search for fast unit selection synthesis. In: Proceedings of ICSPL 2010: 11th Annual Conference of the International Speech Communication Association 2010, 26-30 September 2010, Makuhari, Chiba, Japan. [Baixas]: ISCA, 2010, p. 174-177. ISSN 1990-9772.en
dc.identifier.issn1990-9772
dc.identifier.urihttp://www.kky.zcu.cz/cs/publications/TihelkaD_2010_Enhancementsof
dc.identifier.urihttp://hdl.handle.net/11025/16973
dc.language.isoenen
dc.publisherISCAcs
dc.rights© Daniel Tihelka - Jiří Kala - Jindřich Matoušekcs
dc.rights.accessopenAccessen
dc.subjectsyntéza řečics
dc.subjectvýběr jednotkycs
dc.subjectViterbiho prohledávánícs
dc.subject.translatedspeech synthesisen
dc.subject.translatedunit selectionen
dc.subject.translatedViterbi searchen
dc.titleEnhancements of Viterbi search for fast unit selection synthesisen
dc.title.alternativeVylepšení Viterbiho prohledávání pro rychlou syntézu metodou výběru jednotekcs
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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