[PD] Infinite and NaN float values?
matju at artengine.ca
Mon Aug 16 21:40:21 CEST 2010
On Mon, 16 Aug 2010, Andy Farnell wrote:
> Yep, there's a few synthesis techniques like
eee, do you mean 1/(1+cos(pow(x,n))), or do you mean 1/(1+pow(cos(x),n)) ?
and then, why would it want a zero there ?
> Not sure to what extent it's still true but NaN used to royally screw up
> some versions of Jack and ALSA, requiring a complete restart of the
> audio stack.
I'm speculating that if they run an unprotected equivalent of [lop~] or
[hip~] in their own code at any point, it sets the feedback variable to
something that will never fade out, and then everything gets clipped to +1
or -1. (do they have recursive filters in there ?)
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