Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	26.968752	243.7467499999996	1002.0822499999996	26.800002	27.137502	0.3374999999999986	20250213_034450UTC_V00OS11.WAV
F	31.706248	0.0032499999998094	704.1677499999998	31.487498	31.924998	0.4375	20250213_034450UTC_V00OS11.WAV