Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	44.612504	690.6250000000001	853.1250000000001	44.112504	45.112504	1.0	20250420_193435UTC_V00OS11.WAV
U	51.075	663.5417750000004	798.9582250000003	50.45	51.7	1.25	20250420_193435UTC_V00OS11.WAV