Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	55.543752	311.45822499999974	460.4167749999997	55.0875	56.000004	0.9125039999999984	20250411_014035UTC_V00OS11.WAV
O	55.512496	311.4605000000004	473.9605000000004	55.024996	55.999996	0.9749999999999944	20250411_014035UTC_V00OS11.WAV