[PD] Sympathetic strings

Derek Holzer derek at umatic.nl
Thu Feb 11 23:58:50 CET 2010

Hi Pierre,

I've found resonant comb filters to be the most useful in both 
simulating string sounds, and in getting sympathetic resonances. There's 
tons of stuff in the list archives on them, in particular a patch (maybe 
I even posted it) on calculating the correct delay length for produce a 
given pitch. Search for "comb filter".


Pierre Massat wrote:
> Hello everyone,
> I was wondering if anybody on this list would have an idea of how one 
> can simulate sympathetic strings in pd, using any kind of audio input 
> (especially NOT midi). I tried making a patch with 12 resonating filters 
> (moog~), each tuned to a particular frequency belonging to the chromatic 
> scale, but the result wasn't too good (it sounded more like a weird reverb).
> My problem is basically that of isolating certain frequencies in the 
> input sound. I don't believe that objects like fiddle~ or sigmund~ would 
> be very helpful in that matter, as they always start freaking out once 
> you feed them with chords.
> I haven't found anything useful on the internet yet.
> Any idea?
> Pierre

::: derek holzer ::: http://macumbista.net :::
---Oblique Strategy # 130:
"Question the heroic"

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