Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	48.1	0.0032500000003778	785.4177500000003	48.0125	48.1875	0.1749999999999971	20250221_200850UTC_V00OS11.WAV
D	48.0875	0.0	812.5	48.0	48.175	0.1749999999999971	20250221_200850UTC_V00OS11.WAV