1.135193 Sound On 29.678367 Sound Off 31.438005 Sound On 179.961950 Sound Off 181.224308 Sound On 869.292925 Sound Off 870.754580 Sound On 900.258866 Sound Off 900.954694 Sound On 1770.259365 Sound Off 1770.802290 Sound On 1785.483605 Sound Off 1786.257664 Sound On 3604.480000 Sound Off