MOTM

Hi All !

There is indeed a problem with the phases of a bank of oscillators .  
Not with sines, but with harmonically richer waveforms, as they will 
go on beating against each other, the result will be phasing like 
sounds .  Not bad in and of itself maybe, but not the result hoped 
for, i gather .

In the past a subharmonic instrument has been developed :  the 
Trautonium .  This link gives a good intro :

http://www.doepfer.de/traut/traut_e.htm

Couple of remarks after a cursory read :  the Mixturtrautonium by 
Sala had two times two HF oscs, to be correct, the D module would 
have to have had an extra input on the 4th divider for the second osc,
giving the instrument also non-harmonic possibilities .  The second 
pair would be for the second manual .  I suspect there's more of the 
same ilk, but i want to get on with this post :)

There is a module with a spectrum like display for the partials, and 
they threw in a lot besides .  It's called the Kawai K5m, ca 1986, 
can be had for not too much, 4 individual outs, 4u etc ;-)

Oh yeah, it's fully digital, has only nudge buttons and one alpha 
dial, and stacks of menus, and it's a real b@sterd to program, but a 
computer editor is available ;^)

In this context the NM has something over a bank of "real" 
oscillators :  one can do proper additive on it, and have 18 knobs to 
tweak the partials, more if you spend the money for 4 PC1600x's :)

Bye for now .


Keep 'em oscillating :)


Hugo
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