Adaptation to an electropalatograph palate

Acoustic, impressionistic, and perceptual data.

Sharynne McLeod, Jeff Searl

Research output: Contribution to journalArticle

24 Citations (Scopus)

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 /tesh, d{ezh}, esh, s, z, {ezh}/ 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.
Original languageEnglish
Pages (from-to)192-206
Number of pages15
JournalAmerican Journal of Speech-Language Pathology
Volume15
Issue number2
DOIs
Publication statusPublished - 2006

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Palate
Acoustics
acoustics
rating
listener
Speech Acoustics
Equipment and Supplies
expert
Tongue

Cite this

@article{af1e9d956bd249c29e0f053429f51779,
title = "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 /tesh, d{ezh}, esh, s, z, {ezh}/ 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.",
author = "Sharynne McLeod and Jeff Searl",
note = "Imported on 12 Apr 2017 - DigiTool details were: Journal title (773t) = American Journal of Speech-Language Pathology. ISSNs: 1058-0360;",
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language = "English",
volume = "15",
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publisher = "American Speech-Language-Hearing Association (ASHA)",
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}

Adaptation to an electropalatograph palate : Acoustic, impressionistic, and perceptual data. / McLeod, Sharynne; Searl, Jeff.

In: American Journal of Speech-Language Pathology, Vol. 15, No. 2, 2006, p. 192-206.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Adaptation to an electropalatograph palate

T2 - Acoustic, impressionistic, and perceptual data.

AU - McLeod, Sharynne

AU - Searl, Jeff

N1 - Imported on 12 Apr 2017 - DigiTool details were: Journal title (773t) = American Journal of Speech-Language Pathology. ISSNs: 1058-0360;

PY - 2006

Y1 - 2006

N2 - 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 /tesh, d{ezh}, esh, s, z, {ezh}/ 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.

AB - 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 /tesh, d{ezh}, esh, s, z, {ezh}/ 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.

U2 - 10.1044/1058-0360(2006/018)

DO - 10.1044/1058-0360(2006/018)

M3 - Article

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SP - 192

EP - 206

JO - American Journal of Speech-Language Pathology

JF - American Journal of Speech-Language Pathology

SN - 1058-0360

IS - 2

ER -