200e

Yo Dudes,
On the distinguishing qualities of 261e vs 259e in light of 2 recent 
commments -

"cuari7" wrote:
"The 261e is definitely the better oscillator. The fact that you can 
detune the mod oscillator in relationship to the main one, plus much 
cleaner sound, and you can sweep through the waveforms"

Richard Lainhart wrote:
"I'm surprised by the quality of the sound in the MixCrop excerpt - it 
 sounds much more like traditional additive synthesis that I would 
 have expected from an "analog" synth."

I'm not sure what exactly Lainhart is hearing as reminiscent of 
additive synthesis, but the green 259e waveshaping tables (being 
composed entirely of chebyshev polynomials) have something of that 
quality because they yield clearly bandlimited harmonic complexes (if 
I recall correctly none of the partials produced by the green tables 
are any higher than the 10th harmonic). I think it's a nice sound and 
like the 259e quite a bit.

In response to Cuari7's points: The 259e's Mod oscillator CAN be 
detuned from the Principal in Pitch Track mode (it's a firmware 
update) and I personally think the sweep-ability of the 259e is more 
varied than the 261e due to the waveshaping tables.

I like them both and don't think that one is "definitely the better 
oscillator". The 259e might seem more apealing once there's a way for 
users to write their own tables. I wonder if anyone here knows much 
about waveshaping? I've just started to look into the subject 
technically (having done the first experiments of just hand drawing 
tables to get a feel for what efffect different classes of transfer 
functions have), but haven't found much. I remember reading a while 
ago about using trig functions (particularly sin and cosine had 
special properties I think) and logs as table filler. and some article 
about how to reproduce an arbitrary harmonic evolution by waveshaping 
a sine (I think the example was emulating a clarinet attack).
anyone know where to point me?

Yasi Perera