Doepfer

thank you very much for the info!!!,joe
bakis.



--- buechlerjoe <buechlerjoe@toadmail.com> wrote:
> Hi Bakis
> 
> The A136 is one of two modules in the A100 lineup
> that work as a gain 
> stage, the other being the A119 External Input
> module. All of the 
> other modules, including the VCAs, only go up to a
> maximum of unity 
> gain. They're attenuators, not amplifiers.
> 
> The A136 is designed to handle both audio signals
> and control 
> voltages, so it does the CV amplification that
> Florian wants. If I 
> patch a CV to the A136's input jack, I can adjust
> the A 
> (amplification) knob to:
> 
> Gain = -1  - voltage inverter
> Zero gain  - total suppression of the signal
> Gain < 1   - attenuation
> Unity gain - signal pass-through
> Gain > 1   - amplification, as Florian wishes for
> 
> If I completely suppress the input signal (zero
> gain), I can then 
> set the +A (Positive signal amplification) knob to
> unity gain, so that 
> the CV passes through only if the voltage is above
> the adjustable 
> clipping level. When used with pitch CV, for
> example, the output only 
> begins to rise after a certain note on the keyboard
> is reached. If 
> this "tracking function" is used to modulate the
> filter, for example, 
> then VCF keyboard tracking is only applied to notes
> in the upper 
> registers, bass notes don't have VCF keyboard
> tracking applied to 
> them. This is the same type of thing that you can do
> on digital 
> synths, and even on more modern analog synths like
> the Matrix 1000.
> 
> The A136 could be used instead of the A119 to boost
> external audio 
> signals to the A100 operating level. It can also
> amplify internal A100 
> audio signals in order to "overdrive" a module to
> induce a traditional 
> distorted sound. (the A131 doesn't sound very good
> when overdriven, 
> but I understand that they're other A100 modules
> that sound very nice 
> when you overdrive them).
> 
> The A136 can also be used as a +/- CV source.
> 
> The rest, I think, can be found in the A136 User's
> Manual (I'll leave 
> the trigger modifier as an exercise, since I haven't
> actually done 
> that yet). I think the A136 could also be made to
> work as a 
> voltage-controlled on/off switch, similar to the
> A150, but I haven't 
> had a chance to try that either.
> 
> The A136 documentation contains some errors and
> ommissions that I 
> noted in an earlier thread.
> 
> Joe
> 
> --- In Doepfer_a100@y..., bakis Sirros
> <synth_freak_2000@y...> wrote:
> > hi joe,
> > please,can you explain further???
> > bakis.
> > 
> > 
> > 
> > --- buechlerjoe <buechlerjoe@t...> wrote:
> > > > So this is what I think: a possibility to
> amplify
> > > a CV-Signal is 
> > > really
> > > > missing in the A-100.
> > > 
> > > Not so. This is one of the many possible uses
> for
> > > the A136 
> > > Distortion/Waveshaper, the other "Swiss Army
> Knife"
> > > module. It can be 
> > > used as a simple attenuator, gain stage,
> overdrive
> > > preamp, voltage 
> > > inverter, external signal booster, trigger
> modifier,
> > > and a tracking 
> > > function generator. Oh, yeah, it also does
> > > distortion, and can create 
> > > radical waveshapes from an LFO signal.
> > > 
> > > Joe
> > > 
> > > 
> > 
> > 
> > =====
> > synthfreak(parallel worlds)
> > athens-greece
> > [Doepfer_a100] group owner-moderator
> > 
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Sports - sign up for Fantasy Baseball
> > http://sports.yahoo.com
> 
> 


=====
synthfreak(parallel worlds)
athens-greece
[Doepfer_a100] group owner-moderator

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