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sub oscillator external in / portamento question / detune slider


erikfromhere
 

Speaking about pedals, I like the way I can control vibrato-depth on
my Oberheims with a footpedal. I know, the CS80 has aftertouch to act
as a source for vibrato-depth but I find it difficult to use this on
chords.

I was thinking, there is an external input for the sub oscillator.
What if I take a sine-wave and use a cv-pedal to control the
amplitude of that wave (using a modular synth's oscillator and vca)
and feed it to the sub-osc ? Can I control vibrato-depth ? Does
anybody know what the maximum voltage is that may be fed into this
input ?

Why did Yamaha implement this external source ? Did they have a foot-
pedal available that provided a controllable sine-wave ? I never use
any pedals with the CS80 but if it could control vibrato-depth I
would use all the time ;-)

And I have another question concerning the portamento: when I set the
portamento-time to long I notice this has effect the ribbon too. When
you slide your finger across the ribbon and let go, the pitch goes
back to it's origin in portamento-style. Is this normal

Concerning the detune slider. My CS80's are tuned extremely tight.
When I set the slider at zero, there's allmost no beating between the
channels (I like that). To set a usable detune, I have to adjust the
slider just a little bit. I can't understand why Yamaha gave this
slider this wide range.

Well, all those questions. Still, the CS80 is my favorite synth. I
discover new sounds all the time. I'm now into the 2 channels detuned
sawwaves, the CS80 can compete with the Oberheims on these sounds.

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