Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	45.625	352.0854999999999	473.9604999999999	45.0	46.25	1.25	20250411_050435UTC_V00OS11.WAV
V	48.931248	270.8322500000004	988.5427500000004	48.762498	49.099998	0.3375000000000057	20250411_050435UTC_V00OS11.WAV
D	50.137504	216.66775000000035	975.0032500000004	49.962504	50.312504	0.3499999999999943	20250411_050435UTC_V00OS11.WAV
D	48.912504	270.83225	1015.62175	48.725004	49.100004	0.375	20250411_050435UTC_V00OS11.WAV