Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	43.918752	311.4562750000001	487.49772500000006	43.35	44.487504	1.137504000000007	20250410_074035UTC_V00OS11.WAV
D	38.268752	189.5822500000001	947.91775	38.087502	38.450002	0.3624999999999971	20250410_074035UTC_V00OS11.WAV
D	35.762504	284.3717499999996	1164.5822499999997	35.600004	35.925004	0.3250000000000028	20250410_074035UTC_V00OS11.WAV
U	33.006248	893.7499999999999	1015.625	32.124996	33.8875	1.762504000000007	20250410_074035UTC_V00OS11.WAV
O	53.237504	230.208225	379.166775	52.800004	53.675004	0.875	20250410_074035UTC_V00OS11.WAV