[PD] I'm stuck in a corner, please help! RE: [delta~] object

Frank Barknecht fbar at footils.org
Sat Mar 22 00:08:13 CET 2008


Hallo,
Claude Heiland-Allen hat gesagt: // Claude Heiland-Allen wrote:

> Hi,
> 
> Using the source:
> 
> pd/src/d_filter.c/sigrzero_perform()
> 
>         t_sample next = *in1++;
>         t_sample coef = *in2++;
>         *out++ = next - coef * last;
>         last = next;
> 
> 
> pure-data/externals/cxc/delta~.c/delta_perform()
> 
>       float f = *(in++);
>       // *out++ = (f > 0 ? f : -f);	
>       *out++ = (f > x->x_last ? fabs(f - x->x_last) : -fabs(f - 
> x->x_last));
>       x->x_last = f;
>

Oops, another nameclash: I wasn't aware of delta~ from cxc and was
referring to delta~ from Cyclone. Anyway, seems they do the same in the
end.

Ciao
-- 
Frank




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