/**
  * Sets the Varible Bit Rate Quality.
  *
  * @param quality
  */
 public void setVbrQuality(float quality) {
   vbr_quality = quality;
   float qual = quality + 0.6f;
   if (qual > 10) qual = 10;
   lowenc.setVbrQuality(qual);
   int q = (int) Math.floor(.5 + quality);
   if (q > 10) q = 10;
   setQuality(q);
 }