Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
A	50.9	243.75227499999977	460.4187249999998	50.6	51.2	0.5999999999999943	20250408_085235UTC_V00OS11.WAV
D	26.85	148.9572499999996	1232.2927499999996	26.512500000000003	27.1875	0.6749999999999972	20250408_085235UTC_V00OS11.WAV
D	27.737496	148.96050000000025	1327.0855	27.587496	27.887496	0.2999999999999971	20250408_085235UTC_V00OS11.WAV