Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	46.987504	311.4605000000004	473.9605000000004	46.312504	47.662504	1.3499999999999943	20250411_065835UTC_V00OS11.WAV
D	42.256248	81.24674999999974	1083.3322499999997	41.987498	42.524998	0.5374999999999943	20250411_065835UTC_V00OS11.WAV
V	44.093752	839.5832250000003	1029.1667750000004	43.675004	44.5125	0.8374960000000016	20250411_065835UTC_V00OS11.WAV
U	44.106248	826.0394999999996	1029.1644999999996	43.7	44.512496	0.8124959999999959	20250411_065835UTC_V00OS11.WAV