Hi Chuckk,

I took a look at the C code and postgain is multiplied at the very end:

      /* Generate tanh distortion and output the result */
      out[n] =                          /* IV - Dec 28 2002: optimised */
        (MYFLT) ((exp((double) (sig * shape1)) - exp((double) (sig * shape2)))
                 / cosh((double) (sig * pregain)))
        * postgain;

steven


On Nov 17, 2007 2:06 PM, Chuckk Hubbard <badmuthahubbard@gmail.com> wrote:
> Opcode:
> ares distort1 asig, kpregain, kpostgain, kshape1, kshape2[, imode]
>
> Equation:
>        exp(asig * (shape1 + pregain)) - exp(asig * (shape2 - pregain))
>    aout = ---------------------------------------------------------------
>           exp(asig * pregain)            + exp(-asig * pregain)
>
>
> where is "postgain" supposed to be?
>
> -Chuckk
>
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> http://www.badmuthahubbard.com
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