Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	55.7	297.9167749999997	473.9582249999997	55.400000000000006	56.0	0.5999999999999943	20250422_044035UTC_V00OS11.WAV
P	55.7	311.4605000000004	473.9605000000004	55.400000000000006	56.0	0.5999999999999943	20250422_044035UTC_V00OS11.WAV