Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	49.218752	148.9572499999997	826.0427499999997	49.037502	49.400002	0.3624999999999971	20250411_021635UTC_V00OS11.WAV
D	2.993752	5822.91775	6486.45725	2.6250020000000003	3.362502	0.7374999999999998	20250411_021635UTC_V00OS11.WAV