Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	39.387496	230.2062750000002	487.4977250000002	39.299996	39.474996	0.1749999999999971	20250417_052235UTC_V00OS11.WAV
O	15.856248	2.842170943040401e-13	243.75000000000028	15.737498	15.974998	0.2375000000000007	20250417_052235UTC_V00OS11.WAV