[sdiy] Modulation waveforms

[Wooster Audio]

On 7/5/2010 10:38 AM, Scott Nordlund wrote
>> Great paper, I like the idea of the random slopes. I don't think you
>> could get that behavior with a slew limiter after the LFO.
>>
>> Another waveform that I like to play with is the random walk (a.k.a
>> brownian motion); you randomly change directions instead of randomly
>> change values.
>>      
> Random walks are unbounded, so this presents a little bit of a problem.
> It should reverse direction at the boundaries rather than overflow or
> saturate.  More interesting (not to say useful) would be to put it
> through a sine (or other) waveshaper.
>    

Yes, that's true.  Another option is to increase probability of changing 
direction as you get close to the edge.

Nathan