On Mon, Nov 21, 2011 at 10:24:46AM +0100, Ingo Brückl wrote: > outm.wav (http://www.load.to/dAzgTM7wV8/outm.zip) consists of nothing but > 00 00 C0 7F patters. Uh, that is a silenced NaN. I have absolutely no idea how that would come in. 0/0 or inf - inf would be possible sources, but seem unlikely.