Acoustic and Perceptual Analysis of Speech Adaptation to an Artificial Palate

Autor/inn/en	McAuliffe, Megan J.; Robb, Michael P.; Murdoch, Bruce E.
Titel	Acoustic and Perceptual Analysis of Speech Adaptation to an Artificial Palate
Quelle	In: Clinical Linguistics & Phonetics, 21 (2007) 11-12, S.885-894 (10 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0269-9206
Schlagwörter	Articulation (Speech); Phonology; Sampling; Acoustics; Assistive Technology; Stimuli; Phonemes; Speech Impairments; Auditory Perception; Undergraduate Students; Speech Language Pathology; Reliability; Phonetic Analysis; Evaluation Methods + Suchen Sie Ihr Suchwort? Fonologie; Akustik; Anreizsystem; Fonem; Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Auditive Wahrnehmung; Akustische Wahrnehmung; Reliabilität; Phonetic method; Lautanalytische Methode
Abstract	The study investigated adaptation to a standard electropalatographic (EPG) practise palate in a group of eight adults (mean age = 24 years). The participants read the phrase "a CVC" over four sampling conditions: prior to inserting the palate, immediately following insertion of the palate, 45 minutes after palate insertion, and 3 hours after insertion of the palate. Perceptual and acoustic analyses were conducted on the initial CV portion of the stimuli. Consonants examined included: /t/, /k/, /s/, and /[post-alveolar fricative]/ followed by the /i/, /a/, and /u/ vowels. Results revealed that individuals within the group were able to adapt their speech articulation to compensate for the presence of the artificial palate. Perceptually, mild consonant imprecision was observed upon insertion of the palate; however, this resolved following 45 minutes to 3 hours of adaptation. Acoustic findings indicated that the palate did not affect segment durations or vowel formant frequencies. However, a significant reduction in M1 for /s/ persisted across the sampling periods. Overall, the results suggest that a period of between 45 minutes and 3 hours of adaptation is generally suitable for participation in EPG studies. (Contains 4 tables and 1 figure.) (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10