Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
X	17.893752	121.8717500000002	798.9572500000002	17.587502	18.200002	0.6124999999999972	20250417_120435UTC_V00OS11.WAV
D	22.531248	54.16449999999992	826.0394999999999	22.262498	22.799998	0.5375000000000014	20250417_120435UTC_V00OS11.WAV
D	12.418752	54.16774999999996	961.45725	12.150002	12.687502	0.5375000000000014	20250417_120435UTC_V00OS11.WAV
X	24.7	135.41774999999973	839.5822499999997	24.3125	25.0875	0.7749999999999986	20250417_120435UTC_V00OS11.WAV