[sdiy] High Q Resonators/analog drums

Scott Gravenhorst music.maker at gte.net
Tue Jun 14 14:55:34 CEST 2011


"Chris Strellis" <Chris.Strellis at crystalvision.tv> wrote:
>Hi Adam,
>
>> Some info on my page
>> http://www.adambaby.com/studiotech_TR-77.html
>
>That was fascinating to watch.
>
>Thanks for doing that and for the link.
>
>Now we need to model it in software ;)
>

Actually, I've modeled this idea in an FPGA with high Q band pass state
variable filters.  Here is a short piece of music using an early
version of this instrument:

http://electro-music.com/forum/viewtopic.php?t=38538

The article covers some of the details and there are 2 MP3s posted in
the article, the first is just some demo diddling around, the second is
a piece of music I wrote.

Generally, the filters can be excited with an impulse and their natural
exponential decay is used instead of an EG.  There are envelope
generators that affect the pitch.

-- ScottG
________________________________________________________________________
-- Scott Gravenhorst
-- FPGA MIDI Synthesizer Information: home1.gte.net/res0658s/FPGA_synth/
-- FatMan: home1.gte.net/res0658s/fatman/
-- NonFatMan: home1.gte.net/res0658s/electronics/
-- When the going gets tough, the tough use the command line.




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