Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	40.6687496	216.66449999999972	947.9144999999996	40.4374996	40.8999996	0.4625000000000057	20250411_033435UTC_V00OS11.WAV
D	53.881248	230.2062749999996	812.4977249999997	53.662498	54.099998	0.4375	20250411_033435UTC_V00OS11.WAV
D	48.906248	176.04275000000035	1015.6282500000004	48.737498	49.074998	0.3375000000000057	20250411_033435UTC_V00OS11.WAV
B	36.337504	0.0022750000003526	176.04372500000034	36.250004	36.425004	0.1749999999999971	20250411_033435UTC_V00OS11.WAV
D	38.206248	81.25325000000021	988.5427500000004	37.999998000000005	38.412498	0.4124999999999943	20250411_033435UTC_V00OS11.WAV