[sdiy] Good times with quadrature waves

[Tim Parkhurst]

On Sun, Jun 14, 2009 at 12:20 AM, David G.
Dixon<dixon at interchange.ubc.ca> wrote:
> Well, my Small Bear shipment finally arrived with my desperately needed
> jacks, and I was finally able to get all my modules into the case and
> patched.  I think I've created the perfect wife-annoying machine!
>
> One thing I discovered today: feeding two out-of-phase (by 45 or 90 degrees)
> sine waves from an oscillating filter to the FM of two oscillators is pretty
> darn cool!  With sub-audio sine waves, it sounds like an echo.  Then, when
> you then apply an envelope to the filter cutoff frequency, all sorts of
> oscillatory chaos ensues.  It's good fun; you should definitely try it if
> you've got a quadrature oscillator -- or a wife.
>

I've been telling people it's fun (modulating with a quadrature
oscillator, that is). I've been having all sorts of fun with that, and
you can also mix the various wave phases in the audio range and get
these neat subtle sounds that almost feel like two oscillators
beating... sort of. Although I must admit to using headphones to get
around the 'wife annoying' problem.

Tim (still manages to annoy the wife though) Servo
-- 
"Sire, the church of God is an anvil that has worn out many hammers."
- H.L. Hastings