Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	54.731248	270.8355	1083.3355	54.562498	54.899998	0.3375000000000057	20250411_052235UTC_V00OS11.WAV
D	54.731248	230.20724999999987	1069.7927499999998	54.562498	54.899998	0.3375000000000057	20250411_052235UTC_V00OS11.WAV