0.025692 Sound On 420.348322 Sound Off 421.650249 Sound On 975.963356 Sound Off 976.546236 Sound On 977.565850 Sound Off 978.160952 Sound On 1138.595397 Sound Off 1139.332086 Sound On 1630.915805 Sound Off 1631.696689 Sound On 1757.874104 Sound Off 1759.536961 Sound On 3604.480000 Sound Off