Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
F	7.768752	0.0022749999997984	501.04372499999977	7.600002	7.937502	0.3375000000000003	20250307_150817UTC_V00OS11.WAV
D	21.55	81.25324999999981	826.0427499999998	21.3625	21.7375	0.375	20250307_150817UTC_V00OS11.WAV