Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	15.4	2396.875	2559.375	15.1375	15.6625	0.5249999999999986	20250221_130250UTC_V00OS11.WAV
U	30.681248	907.2895000000002	1029.1645000000003	30.2375	31.124996	0.8874959999999987	20250221_130250UTC_V00OS11.WAV