Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	39.262496	216.66677500000017	311.4582250000002	38.624996	39.899996	1.2750000000000057	20250420_041035UTC_V00OS11.WAV
P	39.262496	230.2062749999998	324.99772499999983	38.612496	39.912496	1.2999999999999972	20250420_041035UTC_V00OS11.WAV
P	51.768752	230.2082249999997	338.5417749999997	50.8875	52.650004	1.762504000000007	20250420_041035UTC_V00OS11.WAV
O	54.006248	135.41872500000034	243.75227500000037	53.649998	54.362498	0.7125000000000057	20250420_041035UTC_V00OS11.WAV
O	51.762504	216.6667749999997	352.08322499999974	50.887504	52.637504	1.75	20250420_041035UTC_V00OS11.WAV