%    start time	      end time	      duration	      low freq	     high freq	
         23.001	         23.007	          0.006	       3021.627	      46303.484	
         26.658	         26.663	          0.005	       5256.063	      45062.130	
        195.374	        195.379	          0.005	       3187.141	      45724.185