Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	46.737504	0.0022750000003526	176.04372500000034	46.650004	46.825004	0.1749999999999971	20250416_182835UTC_V00OS11.WAV
U	51.743752	1557.2895	1760.4145	50.812504	52.675	1.862495999999993	20250416_182835UTC_V00OS11.WAV
U	50.818752	1557.291775	1733.3332250000003	49.800004	51.837500000000006	2.0374960000000044	20250416_182835UTC_V00OS11.WAV