%    start time	      end time	      duration	      low freq	     high freq	
          6.597	          6.603	          0.007	       1780.273	      32069.297	
          8.009	          8.015	          0.005	      16511.001	      46137.970	   
	 39.097	         39.100	          0.004	      20731.603	      41503.584