Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	39.743752	176.04274999999996	1042.70725	39.550002	39.937502	0.3875000000000028	20250414_202235UTC_V00OS11.WAV
C	49.918752	257.29275000000024	1015.6282500000002	49.675002	50.162502	0.4874999999999971	20250414_202235UTC_V00OS11.WAV
D	49.931248	243.75000000000037	1015.6250000000005	49.712498	50.149998	0.4375	20250414_202235UTC_V00OS11.WAV