Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
F	55.737504	40.62272500000023	473.9562750000002	55.562504	55.912504	0.3499999999999943	20250410_155235UTC_V00OS11.WAV
E	15.768752	148.9605000000003	1042.7105000000004	15.562502	15.975002	0.4125000000000014	20250410_155235UTC_V00OS11.WAV