[PD] from poles/zeros to biquad coefficients - how to? (something like max's z-plane)

[Alexandre Torres Porres]

for what i see, it's not some sort of straight formula, right? seems a bit
more complicated than that.

cheers


2013/9/23 Funs Seelen <funsseelen at gmail.com>

> On Mon, Sep 23, 2013 at 5:35 PM, Alexandre Torres Porres <porres at gmail.com
> > wrote:
>
>>
>> thanks, here's a pic of what I have so far
>>
>>
>> https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/11212_10151872996046683_1825736206_n.jpg
>>
>
> Cool.
>
>
>>
>> > For extra inspiration you could have a look at PoZeTools
>>
>> It sure does look like what I need. Thanks. But extracting what I need to
>> know about the math of converting from coordinates to coefficients was just
>> over my head :P unfortunately, sorry.
>>
>> I was hoping for something simpler, like just the operations needed. If
>> the info is in code, I need it to more explicit. I'd really appreciate if
>> anyone knows how to read from this and just points it out for me so I can
>> put it in a patch.
>>
>> I'm assuming it's rather simple math
>>
>
> I remember I once learned how to do this but never repeated the practice.
> If I find time to do that I would gladly try to figure it out again, but if
> someone more experienced feels the urge to chime in before that time I
> would be very happy too :).
>
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