Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	39.943752	0.0	148.95627499999978	39.887502000000005	40.000002	0.1124999999999971	20250421_111035UTC_V00OS11.WAV
A	0.1	27.083224999999857	257.29177499999986	0.0125	0.1875	0.175	20250421_111035UTC_V00OS11.WAV