Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	50.106248	162.4977250000001	433.3312750000001	49.949998	50.262498	0.3125	20250306_125617UTC_V00OS11.WAV
C	49.525	94.79372500000034	690.6272750000004	49.2625	49.7875	0.5250000000000057	20250306_125617UTC_V00OS11.WAV
U	32.4875	1123.9605	1245.8355	32.0875	32.8875	0.7999999999999972	20250306_125617UTC_V00OS11.WAV