[sdiy] Waveshaper update

[mark verbos]

This is the same effect as the Buchla "timbre" sweep, as found in the 
208 and 259 oscillators.  In my opinion, the interesting twist of Ian's 
design is that deals with square waves insted of triangles and it adds 
them from the side insted of folding over in the middle. It would 
definitly work as an additional output on an oscillator module.

seems like the trend is finally towards waveshaping insted of just 
filtering all the time. Nice work guys!

mark


harrybissell wrote:

>LOL... in fact my experiments were with YOUR wave multiplier.  I added several
>stages
>and did a different type of clamp to keep the wave from 'breaking out'.   I'd
>like to have
>many many stages, and damn the cost. Of course it will eventually degrade,
>noise-wise...
>into a BBD so there you have it :^P
>
>H^) harry
>
>Ken Stone wrote:
>
>  
>
>>>hmmm let me take my shoes off (counts toes) and do the math  :^P
>>>
>>>but seriously folks... the overall effect of the pulser is similar to a
>>>resonant
>>>filter... as you sweep upward, the resonant er... bumps ??? get closer
>>>together.
>>>
>>>So there is a law of diminishing returns with the pulser... the more
>>>pulses the more
>>>it starts to sound like a resonant filter with the center frequency all
>>>the way up.
>>>      
>>>
>>I found a similar thing with my wave multiplier. Mine has 4 stages.
>>Originally it had seven. The difference was not so great as to warrant the
>>extra parts and the associated cost. For what it is worth, the original
>>Serge one uses 6. I suspect the real reason for using 6 is to keep the
>>output signal within a voltage range. I used a second feedback loop on the
>>fourth stage to achieve a similar limitation.
>>
>>Ken
>>_______________________________________________________________________
>>Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
>>Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>>Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>>    
>>
>
>
>  
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