Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
P	50.875	284.375	528.125	50.25	51.5	1.25	20250306_162017UTC_V00OS11.WAV
H	50.875	270.8312750000001	528.1227250000001	50.25	51.5	1.25	20250306_162017UTC_V00OS11.WAV