[PD] IIR Filter

[Federico]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Sylvain Le Beux wrote:
> Hi list,
> 
> I am trying to implement an IIR filter which has the following equation :
> 
> Y[k] + a[1]Y[k-1] + a[2]Y[k-2] = X[k]
> 
> where X[k] is here a dirac to obtain the impulse response of the filter
> (of course, first two calculations are set with null samples)
> I get stuck as I try to get the feedback loop of the filter and Pd send
> me an "DSP loop detected" error message

the only way I know to avoid DSP-loop is using s~/r~ with block~, or
using a delay line (but this is not your case since you are building
filters)

- --
Federico
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEoVwYxlXK3KziJfcRAh7oAKCjQA+56icTYoqn0h/f283qHo2tWgCdGljd
E7LsXhjgrZ9bjYMsv+nO2IU=
=N0Um
-----END PGP SIGNATURE-----