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dc.contributor.authorAlsteris, Leighen_US
dc.contributor.authorPaliwal, Kuldipen_US
dc.contributor.editorB. Boashashen_US
dc.date.accessioned2017-04-24T10:06:20Z
dc.date.available2017-04-24T10:06:20Z
dc.date.issued2005en_US
dc.date.modified2009-09-21T05:50:03Z
dc.identifier.refurihttp://www.elec.uow.edu.au/isspa2005/en_AU
dc.identifier.doihttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1581038en_AU
dc.identifier.urihttp://hdl.handle.net/10072/2577
dc.description.abstractThe results of our recent human perception experiments indicate that the short-time phase spectrum can significantly contribute to speech intelligibility over small window durations (i.e., 20-40 ms). This motivates us to investigate the use of the short-time phase spectrum to derive features for automatic speech recognition, which generally uses small window durations of 20-40 ms for spectral analysis. In this paper, we specifically investigate the frequency-derivative of the short-time phase spectrum (i.e., group delay function, GDF) from which to extract features. We demonstrate, with some simple examples, the volatility of the GDF to noise, pitch epochs and windowing effects. We summarise the work by Yegnanarayana and Murthy on the modified GDF (MGDF), which serves to remedy the problems of the GDF. We then implement Murthy and Gadde's MGDF-based features (MODGDF) to determine if they provide an improvement over the popular MFCC representation either by themselves or in combination with MFCCs on an isolated word recognition task.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent814646 bytes
dc.format.extent4 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherIEEEen_US
dc.publisher.placeWoolongong, NSW, Australiaen_US
dc.publisher.urihttp://ieeexplore.ieee.org/servlet/opac?punumber=10550en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofconferencenameThe 8th International Symposium on Signal Processing and Its Applications (ISSPA-2005)en_US
dc.relation.ispartofconferencetitleThe 8th International Symposium on Signal Processing and Its Applications (ISSPA-2005)en_US
dc.relation.ispartofdatefrom2005-08-28en_US
dc.relation.ispartofdateto2005-08-31en_US
dc.relation.ispartoflocationSydney, Australiaen_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode280206en_US
dc.titleEvaluation of the modified group delay feature for isolated word recognitionen_US
dc.typeConference outputen_US
dc.type.descriptionE1 - Conference Publications (HERDC)en_US
dc.type.codeE - Conference Publicationsen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.rights.copyrightCopyright 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_AU
gro.date.issued2005
gro.hasfulltextFull Text


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    Contains papers delivered by Griffith authors at national and international conferences.

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