Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	42.718752	243.7522750000002	419.7937250000002	42.312504	43.125	0.8124959999999959	20250220_205050UTC_V00OS11.WAV
O	55.243752	243.75227500000008	501.0437250000001	54.975002	55.512502	0.5374999999999943	20250220_205050UTC_V00OS11.WAV