[sdiy] Saw vs Triangle Sync

Ian Fritz ijfritz at comcast.net
Tue Nov 24 07:17:21 CET 2009


At 09:56 PM 11/23/2009, Cynthia Webster wrote:

>You can play or pick off different harmonics by varying the sync input 
>attenuator knob of your
>main output oscillator, (the one you're listening to as opposed top the 
>auxiliary one).
>I'm just talking about sync here no cv modulation between VCOs,  and not FM.
>
>If you intercept that modulating cable to the main VCO with a DC coupled 
>VCA or a
>DC coupled Low Pass Gate... then you can play melodies with the different 
>harmonics
>by varying the VCA, (sounds a bit like an harmonic quantizer as opposed to 
>VC one).
>
>Call it Sync Modulation or SM?
>
>I don't know if you can do this with other variable sync designs, but it 
>is fun!

Yes, a lot of fun.  Here's a demo of some dynamic sync craziness:
http://www.electro-music.com/forum/topic-29149-25.html
(scroll down to anharsyncDemo.mp3)

Also listen to dem_A1.mp3 and dem_B1.mp3:
http://www.electro-music.com/forum/topic-28571-50.html
Using the two crazy sync circuits in the DoubleDeka VCO.

Ian





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