Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
H	48.4125	311.4562749999998	446.87272499999983	48.0	48.825	0.8250000000000028	20250414_000435UTC_V00OS11.WAV
P	48.425	311.45822499999974	460.4167749999997	48.0	48.85	0.8499999999999943	20250414_000435UTC_V00OS11.WAV