On using warping function for LSFs transformation in a voice conversion system

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dc.contributor.authorHanzlíček, Zdeněk
dc.contributor.authorMatoušek, Jindřich
dc.date.accessioned2015-12-10T09:19:59Z
dc.date.available2015-12-10T09:19:59Z
dc.date.issued2008
dc.description.abstract-translatedIn this paper, a new approach to line spectral frequencies transformation is introduced and employed in the voice conversion framework. This approach stems from the fact that LSFs are some specific points on the frequency axis and their positions determine the shape of the spectral envelope. Thus, they could be transformed directly by frequency axis warping. Two warping functions were designed specially for LSFs and compared with the traditional GMM-based conversion function. Listening tests and mathematical evaluation revealed that speech transformed by using proposed warping functions is of higher quality and does not suffer from oversmoothing which is common for GMM-based transformation. On the other hand, the speaker identity is slightly better transformed by GMM-based conversion. However, it is possible to combine these two approaches to obtain a compromise between quality and speaker identity.en
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationHANZLÍČEK, Zdeněk; MATOUŠEK, Jindřich. On using warping function for LSFs transformation in a voice conversion system. In: Proceedings of the 9th international conference on signal processing, ICSP '08, 26.10.2008 - 26.11.2008. 3rd ed. Beijing: IEEE Press, 2008, p. [1-4]. ISBN 978-1-4244-2178-7.en
dc.identifier.isbn978-1-4244-2178-7
dc.identifier.urihttp://www.kky.zcu.cz/cs/publications/ZdenekHanzlicek_2008_OnUsingWarping
dc.identifier.urihttp://hdl.handle.net/11025/16948
dc.language.isoenen
dc.publisherIEEE Pressen
dc.rights© Zdeněk Hanzlíček - Jindřich Matoušekcs
dc.rights.accessopenAccessen
dc.subjecthlasová konverzecs
dc.subjectdeformační funkcecs
dc.subject.translatedvoice conversionen
dc.subject.translatedwarping functionen
dc.titleOn using warping function for LSFs transformation in a voice conversion systemen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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