Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	49.693752	392.7105000000001	555.2105000000001	48.712504	50.675	1.9624960000000016	20250413_051035UTC_V00OS11.WAV
O	35.9	284.3727250000002	433.3312750000002	35.2125	36.5875	1.375	20250413_051035UTC_V00OS11.WAV