void fitAU( byte [] sample, Graph in)
{
          double avg = in.avg();
          double tmp = 0.0;
          double ratio =0.0;
          int count=0;
          double factor1 =1.0;
          double factor2 = 0.0;

          double yminimum=Double.POSITIVE_INFINITY;
          double ymaximum=Double.NEGATIVE_INFINITY;



          if (in.ymin() < 0.0) factor2 = Math.abs(in.ymin());

	  //  fix the samples to valid samples //  
          if (in.ymax()+factor2 > 60.0 )
          {      //System.out.println("Sound is over saturated");
                 factor1 = 60.0/(in.ymax()+factor2);
          }


          int j=0;
          int once = 1;
          double max = in.numPoints();

      //    System.out.println("in.avg="+avg+"Max="+(in.ymax()+factor2)+
      //                        "Min="+(in.ymin()+tmp));

          for( int i=0; i < 400; i++)
          {

              sample[i] = (byte)( (in.Y(i)+ factor2)*factor1 );
              if ( sample[i] < 0)
              {      System.out.println("AU is below zero");
                     sample[i]=(byte)0;
              }
	      //  if Undefined value found, ignore them //
              else if (sample[i] >= Double.POSITIVE_INFINITY)
                  sample[i] = (byte)0;
              else if (sample[i] <= Double.NEGATIVE_INFINITY)
                  sample[i] = (byte)0;

          }
}