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dc.contributor.authorGeorge, Candice Men_US
dc.date.accessioned2014-07-22T18:48:00Z
dc.date.available2014-07-22T18:48:00Z
dc.date.created2010en_US
dc.date.issued2010en_US
dc.identifierTCU Master Thesisen_US
dc.identifieretd-06112012-124554en_US
dc.identifierumi-10129en_US
dc.identifiercat-001830504en_US
dc.identifier.urihttps://repository.tcu.edu:443/handle/116099117/4229
dc.descriptionTitle from thesis title page (viewed June 12, 2012).en_US
dc.descriptionIncludes abstract.en_US
dc.descriptionThesis--Texas Christian University, 2010.en_US
dc.descriptionDepartment of Communication Sciences & Disorders; advisor, Christopher R. Watts.en_US
dc.descriptionIncludes bibliographical references.en_US
dc.descriptionText (electronic thesis) in PDF.en_US
dc.description.abstractVoice disorders can have a negative impact on communication. Voice quality is largely a perceptual phenomenon whose judgment relies on the subjective assessment of a listener. Mechanical devices have been developed to augment the voice and improve vocal quality in certain voice disordered individuals. The purpose of this study was to investigate whether signal modification, characterized by amplification alone, filtering alone and/or filtering with amplification, will have an effect on perceived severity of voice quality in breathy voices. Hypofunctional voices were manipulated into four conditions (Original recordings, Amplitude reinforced, Low Pass Filtered, and Low Pass Filtered with Amplitude Reinforcement). Results indicated that a significant main effect was not present (F[3,27] = 2.73, p = 0.64). Pairwise comparisons revealed that this effect was due to a significant difference between the severity ratings for the OR and the LPF stimuli (mean difference = 3.96, p = .037, 95% confidence interval = .296 - 7.629). The results indicate that there was an effect when low pass filtering was present. This condition would help the perceptual quality of a hypofunctional voice if used in an external mechanical device.en_US
dc.format.mediumFormat: Onlineen_US
dc.publisher[Fort Worth, Tex.] : Texas Christian University,en_US
dc.relation.ispartofUMI thesis.en_US
dc.relation.requiresMode of access: World Wide Web.en_US
dc.relation.requiresSystem requirements: Adobe Acrobat reader.en_US
dc.titleThe effect of filtering on auditory-perceptual ratings of severity in hypofunctional voices [electronic resource] /en_US
dc.typeTexten_US
etd.degree.departmentDepartment of Communication Sciences and Disorders
etd.degree.levelMaster
local.academicunitDavies School of Communication Sciences and Disorders
local.subjectareaCommunication Sciences and Disorders


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