[PD] [biquad~] as cyclone's [allpass~]?

Alexandre Torres Porres porres at gmail.com
Thu Oct 3 05:23:34 CEST 2013

cool, but do you know how to implement cyclone's [allpass~] with it?

It's really unclear to me what is the relation of this pass filter with the
one you can generate with biquad coefficients, or with raw poles/zeros
objects for that matter.

Well, one way or another, it's also unclear to me how to do it with delay

seems that it is related to a comb filter, right?


2013/10/2 Chris Clepper <cgclepper at gmail.com>

> Allpass for reverb is easy to do with delwrite~ and vd~.  I used 32 of
> them today to recreate a famous 'deep space' reverb.
> On Wed, Oct 2, 2013 at 1:53 AM, Alexandre Torres Porres <porres at gmail.com>wrote:
>> hi there, i see the biquad's coefficients can be set as an allpass
>> filter, generated by frequency and "Q" parameters. But can it do the same
>> as cyclone's [allpass~] filer? If yes, them how since the parameters for
>> [allpass~] are different (delaytime and such).
>> One way or another, I guess that my real question is: how to implement
>> [allpass~] from vanilla objects?
>> thanks
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