Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	50.643752	27.08224999999993	1056.24675	50.437502	50.850002	0.4124999999999943	20250409_194035UTC_V00OS11.WAV
E	55.643752	81.25227500000037	501.04372500000034	55.325002	55.962502	0.6375000000000028	20250409_194035UTC_V00OS11.WAV