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Elicitation and analysis of a robust word misperception corpus in Spanish

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Research areas:
Year:
2014
Type of Publication:
Misc
Authors:
Toth, Mate Attila; Lecumberri, Luisa García; Cooke, Martin
How published:
Poster presented at the INSPIRE Winter School on Concepts and Computational Models of Robust Bottom-Up Encoding, Copenhagen, Denmark
Month:
January
Abstract:
Human listeners make mistakes when listening to speech in adverse conditions. In some rare cases these misperceptions are consistent across listeners. These robust misperceptions are of particular interest for two reasons. First, they suggest common strate-gies listeners use to process speech in adverse con-ditions. Second, they serve as valuable test stimuli for microscopic intelligibility models, which attempt to predict individual listener responses to each presented stimulus. Previous speech misperception studies [1,2] have focused on anecdotal reports of isolated occurrences in real life, which are difficult to replicate in the absence of the speech signal and the error-inducing context. Other work has elicited misperceptions via speech modifications in the lab and has generally regarded noise as a confounding factor [3]. The current study collected robust, noise-induced Spanish word misperceptions in a laboratory setting. 173 young adults participated in two 1-hour sessions, providing a total of 308157 responses to 53039 different speech in noise tokens. The confusions were collected using an adaptive procedure which focused effort on trials most likely to lead to robust misperceptions. More than 3000 consistent misperceptions were elicited in this way. We present and analyse the confusions based on an extension of the taxonomy introduced in [4] as well as via a novel masker-dependent scheme based on the amount of information recruited from the background which is incorporated into the misperceived word. The corpus will be released as an open resource to the community. [1] A. Cutler and C. Henton, “There’s many a slip ’twixt the cup and the lip,” in On Speech and Lan-guage: Studies for Sieb G. Nooteboom, H. Quené and V. van Heuven, Eds. Netherlands Graduate School of Linguistic, 2004. [2] K. Tang and A. Nevins, “Naturalistic speech mis-perception - a computational corpus-based study,” in Proceedings of the 43rd Meeting of the North East Linguistic Society, 2012. [3] A. Cutler and S. Butterfield, “Rhythmic Cues to Speech Segmentation: Evidence from Juncture Mis-perception,” Journal of Memory and Language, vol. 31, pp. 218–236, 1992. [4] S. Garnes and Z. S. Bond, “A slip of the ear? a snip of the ear? a slip of the year?” in Errors in Lin-guistic Performance: Slips of the Tongue, Ear , Pen and Hand, V . A.Fromkin, Ed. New York: New York: Academic Press, 1980.
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