[sdiy] CMOS for linear circuits.

Scott Gravenhorst music.maker at gte.net
Sat Nov 5 22:25:49 CET 2005


ryan williams <destrukto at cox.net> wrote:
>Hi Scott,
>
>[...]
>about your waveshaper. I considered this, and some waveshapers from 
>Osamu's site. But, since the filter can create a good sine, I decided 
>against having a shaped triangle or sine.

The reason I find a sine shaper useful is that I can use it to add to the
fundamental or whatever harmonic of a sound (3 VCOs) and the filter can do
other things.

>
>-ryan
>
>Scott Gravenhorst wrote:
>> I will be quite interested in your CMOS VCF.  I already use a CMOS VCO, 
>> (René Schmitz).  There are several designs for CMOS VCFs on the web, what
>> exactly do you plan?
>> 
>> I also made a CMOS sine waveshaper.  (and I've already posted that I have
>> no idea how accurate it might be or not be, but it does work and it's
>> output looks like a sinewave on a scope, it also sounds like a sine to my
>> ears).
>> 
>> A very good site for CMOS stuff is:
>> 
>> http://www5b.biglobe.ne.jp/~houshu/synth/
>> 
>> This is Osamu Hoshuyama's site.
>

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