Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	35.85	54.1677499999999	771.87825	35.6	36.1	0.5	20250130_144450UTC_V00OS11.WAV
B	25.343752	0.0	189.5812750000001	25.262502	25.425002	0.1625000000000014	20250130_144450UTC_V00OS11.WAV
F	48.15	6039.583225	6499.999675000001	48.0125	48.2875	0.2750000000000057	20250130_144450UTC_V00OS11.WAV
V	49.05	379.16872499999977	731.2522749999998	48.8375	49.2625	0.4249999999999971	20250130_144450UTC_V00OS11.WAV
E	49.05	325.00000000000034	731.2500000000003	48.825	49.275	0.4500000000000028	20250130_144450UTC_V00OS11.WAV