Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	18.556248	0.0	162.49999999999972	18.474998	18.637498	0.1625000000000014	20250418_153435UTC_V00OS11.WAV
D	51.475	3412.5032500000007	4197.9177500000005	51.2875	51.6625	0.375	20250418_153435UTC_V00OS11.WAV