Evaluation of several techniques for enhancing speech degraded by additive noise in mobile radio environments

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dc.contributor.authorLiberti, Joseph C.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:47:10Zen
dc.date.adate2009-10-10en
dc.date.available2014-03-14T21:47:10Zen
dc.date.issued1991-05-05en
dc.date.rdate2009-10-10en
dc.date.sdate2009-10-10en
dc.description.abstractThis thesis presents a study of several algorithms for enhancing speech degraded by additive noise in mobile cellular communications. The primary goal of this multi-stage study was to examine adaptive noise cancellation techniques in which one microphone is used to measure the speech plus noise signal and another microphone is used to form an estimate of the interfering background noise. The first stage of this research project involved the design and operation of a measurement system to gather dual channel audio samples in mobile radio environments for use in testing adaptive noise cancellation algorithms developed at Northeastern University. In the second phase of this research, several adaptive algorithms were used to implement noise cancellation systems which were applied to the measured speech signals. In the third phase of this research, several of the adaptive noise cancellation algorithms are compared and additional speech enhancement techniques are investigated.en
dc.description.degreeMaster of Scienceen
dc.format.extentvii, 303 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10102009-020029en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10102009-020029/en
dc.identifier.urihttp://hdl.handle.net/10919/45099en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1991.L524.pdfen
dc.relation.isformatofOCLC# 24338977en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1991.L524en
dc.subject.lcshMobile communication systems -- Researchen
dc.subject.lcshNoise -- Measurementen
dc.subject.lcshSpeech, Intelligibility ofen
dc.titleEvaluation of several techniques for enhancing speech degraded by additive noise in mobile radio environmentsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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