Effects Of Duration And Articulation Changes On Intelligibility, Word Reception And Listener Preference

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Abstract
One male speaker recorded the 24 speaker lists that formerly reported multiple-choice intelligibility test Forms A-1 and B-1. Eight lists were read under each of the following conditions: (1) normal delivery; (2) prolonged delivery; and (3) staccato delivery. Twelve panels of listeners were utilized and a numerical advantage in intelligibility was obtained for prolonged speech over the normal condition, and the normal condition was higher than for the staccato condition. In a 2d experiment, 16 lists were read with normal articulation, 4 with precise articulation, and 4 with slovenly articulation, and the listeners were instructed to repeat these words after they were said to them, with care being taken not to suggest that the speaker imitate the manner of delivery. Listeners tend to modify their resultant speech toward the precision of articulation they hear.
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