Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	53.462504	392.7062749999998	568.7477249999998	52.925004	54.000004	1.0750000000000028	20250409_202235UTC_V00OS11.WAV
O	55.35	81.25227499999977	216.66872499999977	54.7125	55.9875	1.2750000000000057	20250409_202235UTC_V00OS11.WAV