早口音声聴取における単語親密度と学習効果の検討

概要

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We investigated the intelligibility of ultra-fast speech which may be used for screen reader for persons with visual disability. The subjects were 35 women who are university students and are not visually/hearing impaired. They were divided into four groups and they listened to 150 words with the speed of approximately 20 morae/sec. The vocabulary contained the tasks of high and low familiarity words, and the orders of tasks were different by the groups. Four morae Japanese words from the FW03 database were used as the vocabulary of the recall test. As the results, we observed the significant learning effect. The transfer of the learning effects among the different word familiarities was also observed. We also investigated the mental workloads of the listening task using the NASA-TLX method. As the results, significantly high workload scores were observed at the listening of low familiarity words. However, there were great differences of workload scores between individuals. No significant reduction of workload scores was observed as the effect of learning.
社団法人電子情報通信学会の論文
2007-11-28