Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	30.562496	690.6250000000001	853.1250000000001	29.124996	31.999996	2.875	20250204_111450UTC_V00OS11.WAV
O	32.918752	2180.2082250000003	2329.1667750000006	32.387504	33.45	1.062495999999996	20250204_111450UTC_V00OS11.WAV
U	33.868752	704.168725	853.127275	32.6375	35.100004	2.462503999999996	20250204_111450UTC_V00OS11.WAV
U	32.906248	2207.2895	2329.1645	32.35	33.462495999999994	1.112495999999993	20250204_111450UTC_V00OS11.WAV
U	54.975	677.0812750000002	853.1227250000002	53.95	56.0	2.049999999999997	20250204_111450UTC_V00OS11.WAV
U	13.681248	2207.2895000000003	2369.7895000000003	12.625	14.737496	2.112496	20250204_111450UTC_V00OS11.WAV