{"NoiseAbsent":440,"NoisePresent":620}
{"NoiseAbsent":460,"NoisePresent":480}
{"NoiseAbsent":500,"NoisePresent":740}
{"NoiseAbsent":500,"NoisePresent":720}
{"NoiseAbsent":580,"NoisePresent":620}
{"NoiseAbsent":380,"NoisePresent":460}
{"NoiseAbsent":520,"NoisePresent":700}
{"NoiseAbsent":580,"NoisePresent":720}
{"NoiseAbsent":560,"NoisePresent":660}
{"NoiseAbsent":480,"NoisePresent":660}