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A computational model of the relationship between speech intelligibility and speech acoustics

Abstract Speech intelligibility measures how much a speaker can be understood by a listener. Traditional measures of intelligibility, such as word accuracy, are not sufficient to reveal the reasons of intelligibility degradation. This dissertation investigates the underlying sources of intelligibility degradations from both perspectives of the speaker and the listener. Segmental phoneme errors and suprasegmental lexical boundary errors are developed to reveal the perceptual strategies of the listener. A comprehensive set of automated acoustic measures are developed to quantify variations in the acoustic signal from three perceptual aspects, including articulation, prosody, and vocal quality. The developed measures have been validated on a dysarthric... (more)
Created Date 2019
Contributor Jiao, Yishan (Author) / Berisha, Visar (Advisor) / Liss, Julie (Advisor) / Zhou, Yi (Committee member) / Arizona State University (Publisher)
Subject Speech therapy / Communication / Electrical engineering / acoustic analysis / articulation / motor speech disorders / objective assessment / prosody / speech intelligibility
Type Doctoral Dissertation
Extent 114 pages
Language English
Note Doctoral Dissertation Speech and Hearing Science 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis