%    start time	      end time	      duration	      low freq	     high freq	
         15.785	         15.790	          0.005	       2690.599	      47462.080	
         16.291	         16.297	          0.006	       4676.765	      31407.242	
         32.449	         32.455	          0.006	       3435.411	      37696.766