Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	8.7187504	920.8332249999996	1069.7917749999997	8.0625024	9.3749984	1.3124959999999994	20250204_164450UTC_V00OS11.WAV
U	49.85	920.831275	1096.8727250000002	48.9625	50.7375	1.7750000000000057	20250204_164450UTC_V00OS11.WAV