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Development and Initial Evaluation of the ClearSpeak Style for Automated Speaking of Algebra STEM

Author(s):
Frankel, Lois; Brownstein, Beth; Soiffer, Neil; Hansen, Eric G.
Publication Year:
2016
Report Number:
RR-16-23
Source:
ETS Research Report
Document Type:
Report
Page Count:
45
Subject/Key Words:
Accessibility, Blindness, Visual Impairment, Computer-Synthesized Text-to-Speech, Mathematical Markup Language (MathML), Algebra, Science, Technology, Engineering and Mathematics (STEM), Assistive Technologies, Audio Response System, Secondary Education, ClearSpeak

Abstract

In addition to wording, speech styles can specify pausing (or other prosodic cues) within the speech. The ClearSpeak style focuses on speech for secondary school algebra. The evaluation compares a prototype of the ClearSpeak style to two pre-existing speech styles: MathSpeak and SimpleSpeak. The primary parameters evaluated are students' success in drawing conclusions about the content and structure of math expressions and their perceptions regarding the familiarity, helpfulness, and understandability of the expressions as spoken. Please see Appendix E for information on obtaining a version of this report that is fully accessible using the tools described.

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