%    start time	      end time	      duration	      low freq	     high freq	
        292.364	        292.369	          0.006	       3683.682	      27186.641	
        292.373	        292.379	          0.006	       5669.847	      26607.342	
        371.534	        371.540	          0.006	       3021.627	      38607.092	
        475.989	        475.995	          0.006	       2607.842	      35876.115