[sdiy] Sallen Key with input mixing to generate all shapes

gordonjcp at gjcp.net gordonjcp at gjcp.net
Mon Dec 22 08:58:00 CET 2014


On Mon, Dec 22, 2014 at 12:08:38PM +1000, Adam Inglis wrote:
> 
> On 22/12/2014, at 10:52 AM, David G Dixon wrote:
> > This trick has some interesting uses.  For
> >example, if one audio signal is lowpass filtered, and another is
> >highpass
> >filtered, then sweeping the cutoff makes one disappear and the
> >other appear
> >at the output.  If a third audio input is bandpass filtered at
> >significant
> >Q, then this acts almost like an interpolating scanner, bit with more
> >interesting sound.
> 
> This sounds very interesting.
> Do you have any clips you can share that demonstrate this?

Here's one I did with a Steiner clone and two synths playing the same sequence, one into the highpass and one into the lowpass:

http://gjcp.net/~gordonjcp/mp3s/hilow.ogg

-- 
Gordonjcp MM0YEQ




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