Re: [Sc-devel] Shaper crash

["James McCartney" <asynth@xxxxxxxxx>]

clip, don't wrap.

On Dec 6, 2007 5:42 PM, Josh Parmenter <josh@xxxxxxxxxxxxxxxxx> wrote:
> 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
> > _______________________________________________
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>
> ******************************************
> /* 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
> */
>
>
>
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-- 
--- james mccartney