Re: [Sc-devel] Shaper crash

[Josh Parmenter <josh@xxxxxxxxxxxxxxxxx>]

Hmm... not sure if I would clip the value, or perhaps wrap it? I think  
a comment in the helpfile makes sense at least. I'll add this in, and  
if others have ideas about the way it should work, let me know and I  
will commit a fix.

best,

Josh

On Dec 6, 2007, at 5:08 PM, kernel wrote:

> hi, i've noticed Shaper causes a segmentation fault if the input is  
> equal to or rises above 1.0.  eg:
>
> (
> c = Buffer.alloc(s, 8192, 1, {arg buf; buf.sine1Msg([1])});
> {Shaper.ar(c.bufnum,SinOsc.ar(100,0,Line.ar(0,2,5)))}.play;
> )
>
> admittedly it's common practice to keep the input quite low but  
> maybe we could note this in the help file.  I did manage to make a  
> rudimentary fix in the UGen code that clips the input to a value  
> close to 1.0 although it only works for the .ar version.  i've not  
> had time to figure out the .kr version.  the fix is commented out  
> here:
>
> LOOP(inNumSamples,
> float fin = ZXP(in);
> // fin = sc_min(fin, 1.0 - 0.0001); // stops seg fault
> float findex = offset + fin * offset;
> ..
>
> perhaps i'm just fussing anyway.
>
> kernel
> _______________________________________________
> Sc-devel mailing list
> Sc-devel@xxxxxxxxxxxxxxx
> http://www.create.ucsb.edu/mailman/listinfo/sc-devel

******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/

“Every composer – at all times and in all cases – gives his own  
interpretation of how modern society is structured: whether actively  
or passively, consciously or unconsciously, he makes choices in this  
regard. He may be conservative or he may subject himself to continual  
renewal; or he may strive for a revolutionary, historical or social  
palingenesis." - Luigi Nono
*/