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Comparing synthesized versus pre-recorded tutor speech in an intelligent tutoring spoken dialogue system

Forbes-Riley, K and Litman, D and Silliman, S and Tetrcault, J (2006) Comparing synthesized versus pre-recorded tutor speech in an intelligent tutoring spoken dialogue system. In: UNSPECIFIED.

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Abstract

We evaluate the impact of tutor voice quulity in the context of our intelligent tutoring spoken dialogue system. We first describe two versions of our system which yielded two corpora of human-computer tutoring dialogues: one using a tutor voiee pre-recorded by a human, and the other using a low-cost texr-to-speech tutor voice. We then discuss the results of two-tailed t-tests comparing student learning gains, system usability, and dialogue efficiency across the two corpora and across corpora subsets. Overall, our results suggest that tutor voice quality may have only a minor impact on these metrics in the context of our tutoring system. We find that tutor voice quality docs not impact learning gains, hut it may impact usability and efficiency for some corpora subsets. Copyright © 2006, American Association for Artificial Intelligence (www.aaai.org). All rights reserved.


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Details

Item Type: Conference or Workshop Item (UNSPECIFIED)
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Forbes-Riley, K
Litman, Ddlitman@pitt.eduDLITMAN
Silliman, S
Tetrcault, J
Centers: University Centers > Learning Research and Development Center (LRDC)
Date: 24 July 2006
Date Type: Publication
Journal or Publication Title: FLAIRS 2006 - Proceedings of the Nineteenth International Florida Artificial Intelligence Research Society Conference
Volume: 2006
Page Range: 509 - 514
Event Type: Conference
Schools and Programs: Dietrich School of Arts and Sciences > Computer Science
Dietrich School of Arts and Sciences > Intelligent Systems
Refereed: Yes
Date Deposited: 05 Jan 2015 15:20
Last Modified: 02 Feb 2019 15:59
URI: http://d-scholarship.pitt.edu/id/eprint/23238

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