Adaptation to an Electropalatograph Palate: Acoustic, Impressionistic, and Perceptual Data

Autor/inn/en	McLeod, Sharynne; Searl, Jeff
Titel	Adaptation to an Electropalatograph Palate: Acoustic, Impressionistic, and Perceptual Data
Quelle	In: American Journal of Speech-Language Pathology, 15 (2006) 2, S.192-206 (15 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1058-0360
DOI	10.1044/1058-0360(2006/018)
Schlagwörter	Phonemes; Listening; Acoustics; Evaluation; Adults; Speech; Speech Impairments; Articulation (Speech); Syllables; Articulation Impairments + Suchen Sie Ihr Suchwort? Fonem; Hörvorgang; Zuhören; Akustik; Evaluierung; Speaking; Sprechen; Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Silbe; Artikulationsstörung
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 /[image omitted]/ 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. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://ajslp.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10