[sdiy] Henry Walmsley's page

[Ian Fritz]

At 10:06 AM 12/25/2009, Andre Majorel wrote:
>Regrettably, there hasn't been much talk about the DoubleDeka
>here. There has been on web forums but, well, they're web forums.

True, but they make the posting of demos, schematics, etc. very simple.


>One thing that has annoyed me about wave table oscillators is the
>limited bandwidth. I kept wondering why the Monowave sounded
>muffled when its filter was, according to Paul, open. And it has
>256 points per cycle. I wonder what it's like with 16 or 10.

Scott has the demos I have posted collected here.
http://bridechamber.com/bridechamber.com/F_DoubleDeka.html
The raw 10-step with arbitrary steps has a characteristic sound due to the 
strong 5th harmonic.  With smaller and/or wider steps this character is 
less pronounced (for example you can draw a 50/50 square wave).  The step 
approximation to a sawtooth sounds a little different from an actual one, 
but filter it a bit or put it in a mix and you don't notice much difference.

Ian