Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	48.7687504	1123.9562749999998	1259.372725	47.9999984	49.5375024	1.5375039999999984	20250416_161635UTC_V00OS11.WAV
U	55.093752	1137.4977250000002	1286.456275	54.187504	56.0	1.812495999999996	20250416_161635UTC_V00OS11.WAV
U	38.475	1083.3354999999997	1245.8354999999997	37.35	39.6	2.25	20250416_161635UTC_V00OS11.WAV