Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	43.756248	392.7062750000002	528.1227250000002	43.1375	44.374996	1.237495999999993	20250421_225235UTC_V00OS11.WAV
O	18.106248	284.3772749999998	419.79372499999977	17.512496000000002	18.7	1.187503999999997	20250421_225235UTC_V00OS11.WAV