Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
F	39.287496	81.2522750000004	704.1687250000003	39.162496	39.412496	0.25	20250412_072835UTC_V00OS11.WAV
I	52.612504	2329.1645	2694.7895	52.137504	53.087504	0.9500000000000028	20250412_072835UTC_V00OS11.WAV