[PD] GGEE [lowpass] error vs. purepd [lowpass]? was Re: basic resonant filters in Pd

brandon zeeb zeeb.brandon at gmail.com
Mon May 18 22:32:29 CEST 2009


Indeed, great catch.  I hadn't noticed that line!

On Mon, May 18, 2009 at 4:30 PM, Hans-Christoph Steiner <hans at at.or.at>wrote:

>
> On May 18, 2009, at 4:27 PM, Claude Heiland-Allen wrote:
>
>  brandon zeeb wrote:
>>
>>> GGEE's [lowpass] seems to be sharp by a semitone or so
>>>
>>
>> [1] line 68:     x->x_rate = 44100.0;
>>
>> seems to have a hardcoded sample rate, which obviously causes problems
>> when running at other sample rates...
>>
>
> Nice catch.  That seems like a bug, no?  As far as I know Günter is
> missing-in-action on his code in the pure-data SVN, so it seems appropriate
> to me IMHO to commit fixes directly.
>
> .hc
>
>
>>
>>
>> Claude
>>
>> [1]
>> http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/ggee/filters/lowpass.c?view=markup
>>
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>
>
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