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Journal of Speech, Language, and Hearing Research Vol.41 744-752 August 1998.
© American Speech-Language-Hearing Association
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DECTalk and MacinTalk Speech Synthesizers

Intelligibility Differences for Three Listener Groups

Katherine C. Hustad 1
Ray D. Kent 2

David R. Beukelman 1
1 Department of Special Education and Communication Disorders University of Nebraska, Lincoln
2 Department of Communicative Disorders University of Wisconsin, Madison

khustad{at}unlinfo.unl.edu

This study examined word level intelligibility differences between DECTalk and MacinTalk speech synthesizers using the Modified Rhyme Test in an open format transcription task. Three groups of listeners participated: inexperienced, speech-language pathologists, and speech synthesis experts. Results for between-subjects ANOVA showed that the expert group correctly identified a significantly higher number of words than each of the other listener groups. For the within-subjects factor of voice, simple effects ANOVA and post hoc contrasts within each group showed that listeners had higher intelligibility scores for the DECTalk male voice, Perfect Paul, than for the MacinTalk male voice, Bruce. No other pairwise gender/age-matched differences were found between the two synthesizers.

KEY WORDS: speech synthesis, DECTalk, MacinTalk, intelligibility, listening experience

Submitted on March 31, 1997
Accepted on February 13, 1998




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