Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	47.856248	0.0	1002.0822500000002	47.737498	47.974998	0.2374999999999971	20250307_190817UTC_V00OS11.WAV
D	20.131248	40.62824999999992	785.4177499999998	19.937498	20.324998	0.3875000000000028	20250307_190817UTC_V00OS11.WAV
D	49.043752	162.5032499999998	947.9177499999998	48.875002	49.212502	0.3375000000000057	20250307_190817UTC_V00OS11.WAV