Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	51.3	108.33224999999987	988.5427499999998	51.025	51.575	0.5499999999999972	20250419_211035UTC_V00OS11.WAV
D	33.018752	121.87500000000016	812.5000000000002	32.837502	33.200002	0.3624999999999971	20250419_211035UTC_V00OS11.WAV
D	29.406248	13.539499999999803	744.7894999999999	29.187498	29.624998	0.4375	20250419_211035UTC_V00OS11.WAV