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Full-Text Articles in Medicine and Health Sciences
A Comparison Of Speech Amplification Devices For Individuals With Parkinson's Disease And Hypophonia, Monika Andreetta
A Comparison Of Speech Amplification Devices For Individuals With Parkinson's Disease And Hypophonia, Monika Andreetta
Electronic Thesis and Dissertation Repository
One of the most prevalent speech impairments in idiopathic Parkinson’s disease (PD) is hypophonia, a reduction in intensity, which typically decreases intelligibility. Speech amplification devices are a potential solution; however, despite the availability of a broad range of devices, no previous studies systematically compare their efficacy in PD. This study examined the effects of speech task (Sentence Intelligibility Test versus conversation), background noise (no noise versus 65 dB SPL multi-talker noise), and selected devices (ADDvox, BoomVox, ChatterVox, Oticon, SoniVox, Spokeman, and Voicette) for 11 PD and 10 control participants, using outcome measures of speech intensity, speech-to-noise ratio, intelligibility, sound quality, …
Effects Of Coordinated Bilateral Hearing Aids And Auditory Training On Sound Localization, Iman Elsabah Ibrahim
Effects Of Coordinated Bilateral Hearing Aids And Auditory Training On Sound Localization, Iman Elsabah Ibrahim
Electronic Thesis and Dissertation Repository
This thesis has two main objectives: 1) evaluating the benefits of the bilateral coordination of the hearing aid Digital Signal Processing (DSP) features by measuring and comparing the auditory performance with and without the activation of this coordination, and 2) evaluating the benefits of acclimatization and auditory training on such auditory performance and, determining whether receiving training in one aspect of auditory performance (sound localization) would generalize to an improvement in another aspect of auditory performance (speech intelligibility in noise), and to what extent. Two studies were performed. The first study evaluated the speech intelligibility in noise and horizontal sound …
Effect Of Rate Reduction On Speech Intelligibility In Individuals With Dysarthria, Zachary Hall
Effect Of Rate Reduction On Speech Intelligibility In Individuals With Dysarthria, Zachary Hall
LSU Master's Theses
This study examined how speech rate reduction affects speech intelligibility in speakers with dysarthria associated with diverse neurological conditions. Three speakers with dysarthria were recorded reading a paragraph using conversational and reduced speech rates. The samples of both the conversational and slow rates were digitally edited to include silent pauses at the speakers’ natural breaks. The samples were then segmented into breath group utterances. Five samples with the greatest rate reductions from each speaker were used as stimuli, each presented in four rate conditions: conversational, slow, synthesized conversational, and synthesized slow. The listeners rated the intelligibility of 60 samples using …