Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	22.575	121.8727250000002	392.7062750000002	22.3375	22.8125	0.4750000000000014	20250420_121635UTC_V00OS11.WAV
B	23.031248	352.08127499999966	487.4977249999996	22.937498	23.124998	0.1875	20250420_121635UTC_V00OS11.WAV
V	40.25	121.87500000000016	406.25000000000017	40.0625	40.4375	0.375	20250420_121635UTC_V00OS11.WAV
O	29.743752	176.0395000000002	338.5395000000002	29.475002	30.012502	0.5375000000000014	20250420_121635UTC_V00OS11.WAV