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Doing multiple rotation passes instead of one produces better pulse spreading.

--- a/libcelt/bands.c

+++ b/libcelt/bands.c

@@ -266,8 +266,8 @@

    for (i=0;i<m->nbEBands;i++)

    {

       float theta;

-      theta = pow(.1f,1.f*abs(m->nbPulses[i])/(B*(eBands[i+1]-eBands[i])));

-      exp_rotation(X+B*eBands[i], B*(eBands[i+1]-eBands[i]), theta, dir, 2, 1);

+      theta = .007*(B*(eBands[i+1]-eBands[i]))/(.1f+abs(m->nbPulses[i]));

+      exp_rotation(X+B*eBands[i], B*(eBands[i+1]-eBands[i]), theta, dir, B, 8);

    }

    //printf ("\n");

 }