| 摘要 |
PROBLEM TO BE SOLVED: To perform processing for awakening a driver before the driver becomes drowsy.SOLUTION: A playback device includes an operational state detection unit for detecting the operational state of a movable body, a playback information detection unit for detecting playback information on content data during playback, and a playback control unit that acquires arousal level information corresponding to the operational state and the playback information, and if the arousal level information indicates that the arousal level is relatively low, changes a playback mode of content data during the playback. |
