Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
A	27.275	189.58127499999992	487.497725	26.9375	27.6125	0.6749999999999972	20250130_025050UTC_V00OS11.WAV
U	49.531248	866.6667750000004	1002.0832250000004	48.762496	50.3	1.5375039999999984	20250130_025050UTC_V00OS11.WAV