[PD] [lop~] coefficient calculation

[Dan Wilcox]

Sure. I do this now ... but then if I want to have portable patches, I need everyone else to have it installed. This may be easy for desktop but not so easy if I want to support libpd projects.

On Jul 22, 2014, at 4:18 PM, Miller Puckette <msp at ucsd.edu> wrote:

> 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
> 
>> _______________________________________________
>> Pd-list at lists.iem.at mailing list
>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
> 

--------
Dan Wilcox
@danomatika
danomatika.com
robotcowboy.com





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