Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	38.681248	257.2927499999998	1056.2532499999998	38.537498	38.824998	0.2874999999999943	20250411_044035UTC_V00OS11.WAV
U	35.725	1137.5	1300.0	35.15	36.3	1.1500000000000057	20250411_044035UTC_V00OS11.WAV
V	52.637496	1205.2105	1652.0855	52.412496	52.862496	0.4500000000000028	20250411_044035UTC_V00OS11.WAV
O	52.95	243.74772499999963	392.70627499999966	52.6	53.3	0.7000000000000028	20250411_044035UTC_V00OS11.WAV
D	52.137496	243.7467500000002	1083.3322500000002	51.937496	52.337496	0.4000000000000057	20250411_044035UTC_V00OS11.WAV