Artificial bandwidth extension of wideband speech by pitch-scaling of higher frequencies

dc.contributor.author	Geiser, Bernd
dc.contributor.author	Vary, Peter
dc.contributor.editor	Horbach, Matthias
dc.date.accessioned	2019-03-07T09:32:24Z
dc.date.available	2019-03-07T09:32:24Z
dc.date.issued	2013
dc.description.abstract	In this paper, a simple DFT-domain pitch-scaling technique is used to extend the audio bandwidth of wideband speech (50 Hz - 7 kHz) to the super-wideband range (50 Hz - 12 kHz). Therefore, the higher frequencies of the wideband signal (6 - 7 kHz) are pitch-scaled with a scaling factor of four and the resulting, scaled signal is inserted into the 8 - 12 kHz band. A subjective listening test has been conducted wherein it could be shown that the new proposal clearly outperforms a previous method for artificial bandwidth extension which is based on statistical estimation techniques.	en
dc.identifier.isbn	978-3-88579-614-5
dc.identifier.pissn	1617-5468
dc.identifier.uri	https://dl.gi.de/handle/20.500.12116/20705
dc.language.iso	en
dc.publisher	Gesellschaft für Informatik e.V.
dc.relation.ispartof	INFORMATIK 2013 – Informatik angepasst an Mensch, Organisation und Umwelt
dc.relation.ispartofseries	Lecture Notes in Informatics (LNI) - Proceedings, Volume P-220
dc.title	Artificial bandwidth extension of wideband speech by pitch-scaling of higher frequencies	en
dc.type	Text/Conference Paper
gi.citation.endPage	2901
gi.citation.publisherPlace	Bonn
gi.citation.startPage	2892
gi.conference.date	16.-20. September 2013
gi.conference.location	Koblenz
gi.conference.sessiontitle	Regular Research Papers

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