more analogue additive (fwd)

[David MOYLAN]

On Thu, 13 Aug 1998, List, Christopher wrote:

> Maybe I'm missing something simple here, but how does one easily
> generate a triangle with a period _other_ than F^n Hz, where F is the
> fundamental? I mean, I've forgotten a lot of my theory on audio waves
> and stuff, but don't you want to add up waveforms with a period of F*2,
> F*3, F*4, F*n... ? Simply doing FWR on the triangle wave won't get you
> those waves...
> 
> - CList
> 
It helps to draw out the waves, but I'm not that good at ascii
graphics so.  If the wave is centered about 0 volts and it is
full wave rectified you do get a wave of twice the frequency
f*2.  f*3 is a bit more difficult to explain but can be done with
rectification.  It's kind of like a folding of the waveform.
This was discussed a couple months back.  I think it was in 
relation to a Serge waveshaper module.  You can check the archive.
Anyone else want to get a bit more detailed?

Also, if multiplying seems to difficult we could always use divide
down technology (again, organ technology).  dave moylan