0.026236 Sound On 53.058571 Sound Off 54.694082 Sound On 472.455329 Sound Off 474.388594 Sound On 477.218844 Sound Off 478.417143 Sound On 1482.537800 Sound Off 1483.667256 Sound On 1744.171610 Sound Off 1744.877982 Sound On 3599.018662 Sound Off