Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	51.137504	108.33224999999965	934.3717499999996	50.925004	51.350004	0.4249999999999971	20250204_041450UTC_V00OS11.WAV
E	30.875	501.0394999999996	744.7894999999996	30.6375	31.1125	0.4750000000000014	20250204_041450UTC_V00OS11.WAV
V	30.893752	528.122725	758.331275	30.700002	31.087502	0.3875000000000028	20250204_041450UTC_V00OS11.WAV
U	39.887496	839.5812749999997	1015.6227249999996	39.787496	39.987496	0.2000000000000028	20250204_041450UTC_V00OS11.WAV