Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	4.643752	40.624999999999886	1056.25	4.487502	4.800002	0.3125	20250417_101035UTC_V00OS11.WAV
U	47.606248	839.5854999999999	1002.0855	47.212498	47.999998	0.7874999999999943	20250417_101035UTC_V00OS11.WAV