Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	49.118752	460.4167749999999	636.4582249999999	48.587504	49.65	1.062495999999996	20250308_034417UTC_V00OS11.WAV
E	49.118752	473.9604999999998	636.4604999999998	48.575004	49.6625	1.0874960000000016	20250308_034417UTC_V00OS11.WAV
L	25.075	135.4144999999998	419.7894999999998	24.8375	25.3125	0.4750000000000014	20250308_034417UTC_V00OS11.WAV