Abstract
We propose a method that uses speech analysis to measure speaker fatigue to develop general-purpose fatigue measurement system. Our proposed method uses the following fatigue measurement indexes: fundamental frequency(F0), average speech power, and speech period. We call these ‘speech fatigue measurement indexes'. To show the effectiveness of our proposed method, performed three experiments where subjects rode on a bicycle simulator. From our experiment results, we obtained significant results of a CVa-a variation coefficient (acceleration plethysmogram) and our proposed speech fatigue measurement indexes. However, since we failed to obtain significant results by another conventional method, we conclude that our proposed method effectively measures speaker fatigue better than a conventional method.
