Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	55.225	392.7062749999998	568.7477249999998	54.4625	55.9875	1.5250000000000057	20250421_204035UTC_V00OS11.WAV
T	47.206248	392.7062749999998	568.7477249999998	46.4125	47.999996	1.5874960000000016	20250421_204035UTC_V00OS11.WAV
U	18.662496	1110.4187250000002	1259.377275	17.799996	19.524996	1.7250000000000014	20250421_204035UTC_V00OS11.WAV