Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	53.25	636.4605000000004	758.3355000000004	52.6125	53.8875	1.2750000000000057	20250416_081635UTC_V00OS11.WAV
U	27.431248	798.9562749999998	974.9977249999996	26.9	27.962496	1.062496000000003	20250416_081635UTC_V00OS11.WAV