Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	21.068752	297.9187250000001	446.87727500000005	20.037504	22.1	2.062496000000003	20250420_125835UTC_V00OS11.WAV
O	21.068752	297.91677500000014	433.3332250000002	20.0	22.137504	2.137504	20250420_125835UTC_V00OS11.WAV
P	21.043752	297.91677500000014	433.3332250000002	20.0375	22.050004	2.012504	20250420_125835UTC_V00OS11.WAV
O	52.768752	311.45822499999974	460.4167749999997	51.987504	53.55	1.562495999999996	20250420_125835UTC_V00OS11.WAV