Formant Centralization Ratio: A Proposal for a New Acoustic Measure of Dysarthric Speech
نویسندگان
چکیده
منابع مشابه
Formant centralization ratio: a proposal for a new acoustic measure of dysarthric speech.
PURPOSE The vowel space area (VSA) has been used as an acoustic metric of dysarthric speech, but with varying degrees of success. In this study, the authors aimed to test an alternative metric to the VSA-the formant centralization ratio (FCR), which is hypothesized to more effectively differentiate dysarthric from healthy speech and register treatment effects. METHOD Speech recordings of 38 i...
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Dysarthria is a motor speech disorder that is often associated with irregular phonation (e.g. vocal fry) and amplitude, incoordination of articulators, and restricted movement of articulators, among other problems. The present study is part of a project on voice transformation systems for dysarthria, with the goal of producing intelligibility-enhanced speech. We report on a procedure in which f...
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This report describes an acoustic analysis of the speech of persons with dysarthria. Sentence-based vs. word-based syllable rate and examples of deviant articulation patterns are presented. Implications for speech recognition systems are discussed.
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Speech production errors characteristic of dysarthria are chiefly responsible for the low accuracy of automatic speech recognition (ASR) when used by people diagnosed with it. The results of the small number of speech recognition studies, mostly conducted by assistive technology researchers, are a testimony to this statement. In the engineering community, substantial research has been conducted...
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We investigated the speech recognition of a person with articulation disorders resulting from athetoid cerebral palsy. The articulation of the first words spoken tends to be unstable due to the strain placed on the speech-related muscles, and this causes degradation of speech recognition. Therefore, we proposed a robust feature extraction method based on PCA (Principal Component Analysis) inste...
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ژورنال
عنوان ژورنال: Journal of Speech, Language, and Hearing Research
سال: 2010
ISSN: 1092-4388,1558-9102
DOI: 10.1044/1092-4388(2009/08-0184)