Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
P	50.025	257.2937250000002	406.25227500000017	49.1375	50.9125	1.7750000000000057	20250410_105235UTC_V00OS11.WAV
O	50.05	257.2894999999999	419.7894999999999	49.2	50.9	1.7000000000000028	20250410_105235UTC_V00OS11.WAV