0.354807 Sound On 30.268322 Sound Off 31.059478 Sound On 180.705170 Sound Off 181.752585 Sound On 870.403583 Sound Off 871.428934 Sound On 900.071565 Sound Off 901.041247 Sound On 915.325601 Sound Off 915.950340 Sound On 1770.091633 Sound Off 1770.965079 Sound On 1785.320590 Sound Off 1786.283424 Sound On 3604.480000 Sound Off