Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	47.381248	311.4582250000004	744.7917750000004	47.137498	47.624998	0.4874999999999971	20250221_234450UTC_V00OS11.WAV
D	51.275	2288.54275	3195.83225	50.9875	51.5625	0.5750000000000028	20250221_234450UTC_V00OS11.WAV