Hello,<div><br></div><div>Found this instructive article about subnormals (called denormal numbers there):</div><div><br></div><div><a href="http://www.google.nl/url?sa=t&amp;rct=j&amp;q=musicdsp%20denormal&amp;source=web&amp;cd=3&amp;ved=0CEEQFjAC&amp;url=http%3A%2F%2Fmusicdsp.org%2Ffiles%2Fdenormal.pdf&amp;ei=O0hAUbu7GcyU0QWezoHQCw&amp;usg=AFQjCNGbelHDdXUZnnZOwLOwwz4V8u_98w&amp;bvm=bv.43287494,d.d2k">http://www.google.nl/url?sa=t&amp;rct=j&amp;q=musicdsp%20denormal&amp;source=web&amp;cd=3&amp;ved=0CEEQFjAC&amp;url=http%3A%2F%2Fmusicdsp.org%2Ffiles%2Fdenormal.pdf&amp;ei=O0hAUbu7GcyU0QWezoHQCw&amp;usg=AFQjCNGbelHDdXUZnnZOwLOwwz4V8u_98w&amp;bvm=bv.43287494,d.d2k</a></div>
<div><br></div><div>Subnormal numbers are a pain in the ass, they cause substantially increased CPU load without doing anything useful for audio DSP. Unfortunately it can happen in some Pd objects (notably [freeverb~]), and spoil the performance of a Pd patch. The article explains why subnormal numbers occur, and what can be done to eliminate or prevent them.</div>
<div><br></div><div>Katja</div>