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Comparing the single-word intelligibility of two speech synthesizers for small computers

Thesis/Dissertation ·
OSTI ID:6266476

Previous research on the intelligibility of synthesized speech has placed emphasis on the segmental intelligibility (rather than word or sentence intelligibility) of expensive and sophisticated synthesis systems. There is a need for more information about the intelligibility of low-to-moderately priced speech synthesizers because they are the most likely to be widely purchase for clinical and educational use. This study was to compare the word intelligibility of two such synthesizers for small computers, the Votrax Personal Speech System (PSS) and the Echo GP (General Purpose). A multiple-choice word identification task was used in a two-part study in which 48 young adults served as listeners. Groups of subjects in Part I completed one trial listening to taped natural speech followed by one trial with each synthesizer. Subjects in Part II listened to the taped human speech followed by two trials with the same synthesizer. Under the quiet listening conditions used for this study, taped human speech was 30% more intelligible than the Votrax PSS, and 53% more intelligible than the Echo GP.

Research Organization:
Virginia Univ., Charlottesville (USA)
OSTI ID:
6266476
Country of Publication:
United States
Language:
English

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