Talker Identification across Source Mechanisms: Experiments with Laryngeal and Electrolarynx Speech

Autor/inn/en	Perrachione, Tyler K.; Stepp, Cara E.; Hillman, Robert E.; Wong, Patrick C. M.
Titel	Talker Identification across Source Mechanisms: Experiments with Laryngeal and Electrolarynx Speech
Quelle	In: Journal of Speech, Language, and Hearing Research, 57 (2014) 5, S.1651-1665 (15 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2014_JSLHR-S-13-0161
Schlagwörter	Listening Skills; Auditory Perception; Acoustics; Phonetics; Identification; Human Body; Generalization; Adults; Control Groups; Correlation; Audio Equipment; Accuracy; Speech; Individual Differences; Articulation (Speech) + Suchen Sie Ihr Suchwort? Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Phonetik; Fonetik; Identifikation; Identifizierung; Menschlicher Körper; Korrelation; Audio-CD; Speaking; Sprechen; Individueller Unterschied
Abstract	Purpose: The purpose of this study was to determine listeners' ability to learn talker identity from speech produced with an electrolarynx, explore source and filter differentiation in talker identification, and describe acoustic-phonetic changes associated with electrolarynx use. Method: Healthy adult control listeners learned to identify talkers from speech recordings produced using talkers' normal laryngeal vocal source or an electrolarynx. Listeners' abilities to identify talkers from the trained vocal source (Experiment 1) and generalize this knowledge to the untrained source (Experiment 2) were assessed. Acoustic-phonetic measurements of spectral differences between source mechanisms were performed. Additional listeners attempted to match recordings from different source mechanisms to a single talker (Experiment 3). Results: Listeners successfully learned talker identity from electrolarynx speech but less accurately than from laryngeal speech. Listeners were unable to generalize talker identity to the untrained source mechanism. Electrolarynx use resulted in vowels with higher F1 frequencies compared with laryngeal speech. Listeners matched recordings from different sources to a single talker better than chance. Conclusions: Electrolarynx speech, although lacking individual differences in voice quality, nevertheless conveys sufficient indexical information related to the vocal filter and articulation for listeners to identify individual talkers. Psychologically, perception of talker identity arises from a "gestalt" of the vocal source and filter. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10