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Adaptation to an electropalatograph palate: acoustic, impressionistic, and perceptual data.

Abstract：

PURPOSE:The purpose of this study was to evaluate adaptation to the electropalatograph (EPG) from the perspective of consonant acoustics, listener perceptions, and speaker ratings. METHOD:Seven adults with typical speech wore an EPG and pseudo-EPG palate over 2 days and produced syllables, read a passage, counted, and rated their adaptation to the palate. Consonant acoustics, listener ratings, and speaker ratings were analyzed. RESULTS:The spectral mean for the burst (/t/) and frication (/s/) was reduced for the first 60-120 min of wearing the pseudo-EPG palate. Temporal features (stop gap, frication, and syllable duration) were unaffected by wearing the pseudo-EPG palate. The EPG palate had a similar effect on consonant acoustics as the pseudo-EPG palate. Expert listener ratings indicated minimal to no change in speech naturalness or distortion from the pseudo-EPG or EPG palate. The sounds [see text] were most likely to be affected. Speaker self-ratings related to oral comfort, speech, tongue movement, appearance, and oral sensation were negatively affected by the presence of the palatal devices. CONCLUSIONS:Speakers detected a substantial difference when wearing a palatal device, but the effects on speech were minimal based on listener ratings. Spectral features of consonants were initially affected, although adaptation occurred. Wearing an EPG or pseudo-EPG palate for approximately 2 hr results in relatively normal-sounding speech with acoustic features similar to a no-palate condition.

journal_name

Am J Speech Lang Pathol

journal_title

American journal of speech-language pathology

authors

McLeod S,Searl J

doi

10.1044/1058-0360(2006/018)

subject

Has Abstract

pub_date

2006-05-01 00:00:00

pages

192-206

issue

2

eissn

1058-0360

issn

1558-9110

pii

15/2/192

journal_volume

15

pub_type

杂志文章

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