[PD] filter stability

[Roman Haefeli]

On Wed, 2022-04-27 at 11:27 -0300, Alexandre Torres Porres wrote:
> I guess I can get the coefficients and derive an overall gain
> parameter. I got objects in ELSE that do that [coeff2pz]. But if it
> also depends on the frequency I should calculate this all of the time
> which doesn't seem reasonable. Maybe just keeping a safe 0.5 q is
> fine...
> 
> You know, using something like lop~ is pretty stable, I am now
> wondering if I should just use if for the sake of simplicity and
> efficiency as well. Do I really need a 6db decay per octave instead
> of 3db? What do you people think?


Isn't a low steepness in the filter in the feedback loop desired
anyway? Me thinks a low steepness means the change in timbre happens
more slowly which - I imagine - would sound nicer than a sudden
'tziewhh'. 

Roman
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: This is a digitally signed message part
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20220427/d0cfef0c/attachment.sig>