0.025533 Sound On 29.572449 Sound Off 31.149002 Sound On 638.308481 Sound Off 639.166349 Sound On 720.599433 Sound Off 721.130272 Sound On 870.103084 Sound Off 870.663492 Sound On 1770.032925 Sound Off 1770.703673 Sound On 1785.030340 Sound Off 1786.051587 Sound On 3604.480000 Sound Off