[PD] [lop~] coefficient calculation

[Miller Puckette]

Can you just copy moog~ from extended and use it with vanilla/  (I think
that should work.)

cheers
Miller

On Mon, Jul 21, 2014 at 02:02:36PM -0400, Dan Wilcox wrote:
> Yeah. I'm a bit selfish in that I really like [moog~] but I'd also like to
> see a vanilla version to I could migrate the last of my abstractions away
> from externals for portability. I have tried the rjlib resonant lop~
> objects which use raw filters/biquad but they don't sound as good. I only
> took 1 DSP course in undergrad *years* ago and my filter math is too rusty
> to properly understand the filters objects and the [moog~] source code.
> 
> 
> On Mon, Jul 21, 2014 at 1:45 PM, Alexandre Torres Porres <porres at gmail.com>
> wrote:
> 
> > for plotting the frequency response though, I depend that it'd be possible
> > to emulate with biquad coefficients...
> >
> >
> > 2014-07-21 14:44 GMT-03:00 Alexandre Torres Porres <porres at gmail.com>:
> >
> > like in a vanilla patch with raw filters or biquad?
> >>
> >> that'd be cool indeed :)
> >>
> >>
> >> 2014-07-19 10:29 GMT-03:00 Dan Wilcox via Pd-list <pd-list at lists.iem.at>:
> >>
> >>> Can you make a clone of [moog~] while you're at it? :)
> >>>
> >>> On Jul 18, 2014, at 11:58 PM, via Pd-list <pd-list at lists.iem.at> wrote:
> >>>
> >>> *From: *Alexandre Torres Porres via Pd-list <pd-list at lists.iem.at>
> >>>  *Subject: **Re: [PD] [lop~] coefficient calculation*
> >>> *Date: *July 18, 2014 at 11:44:47 PM EDT
> >>> *To: *Joe White <white.joe4 at gmail.com>
> >>>  *Cc: *pd-list <pd-list at iem.at>
> >>>  *Reply-To: *Alexandre Torres Porres <porres at gmail.com>
> >>>
> >>>
> >>>  hi all, I've been working on filter patches for my courses and I'm
> >>> still failing ti get biquad coeficients from the [vcf~] code. Maybe anyone
> >>> out there could help?
> >>>
> >>> I wanted this to plot the frequency response in realtime...
> >>>
> >>> the [vcf~] filters aren't in the audio Audio-EQ-Cookbook, and the code
> >>> looks a bit too complicated
> >>>
> >>> thanks
> >>>
> >>>
> >>>  --------
> >>> Dan Wilcox
> >>> @danomatika
> >>> danomatika.com
> >>> robotcowboy.com
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>>
> >>
> >
> 
> 
> -- 
> Dan Wilcox
> danomatika.com
> robotcowboy.com

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