Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	48.6875	1530.2105	1652.0855	48.0	49.375	1.375	20250417_164035UTC_V00OS11.WAV
U	31.112504	1516.6687250000002	1665.627275	30.225004	32.000004000000004	1.775000000000002	20250417_164035UTC_V00OS11.WAV
U	39.606248	1543.747725	1652.0812749999998	39.212498	39.999998	0.7874999999999943	20250417_164035UTC_V00OS11.WAV