Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	51.756248	216.66774999999976	893.7532499999998	51.499998	52.012498	0.5125000000000028	20250411_025835UTC_V00OS11.WAV
V	48.5625	311.4582250000001	826.0417750000001	48.3	48.825	0.5250000000000057	20250411_025835UTC_V00OS11.WAV
D	51.731248	270.8332250000001	866.6667750000001	51.487498	51.974998	0.4874999999999971	20250411_025835UTC_V00OS11.WAV
I	48.5937504	325.0000000000001	812.5000000000001	48.3000004	48.8875004	0.5875000000000057	20250411_025835UTC_V00OS11.WAV