Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	52.631248	243.75	365.625	52.249998	53.012498	0.7625000000000028	20250415_171635UTC_V00OS11.WAV
O	42.393752	230.208225	379.166775	42.100002	42.687502	0.5875000000000057	20250415_171635UTC_V00OS11.WAV