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



--- buechlerjoe < buechlerjoe@... > 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
> > 1 group owner-moderator
> >
> > __________________________________________________
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>
>

=====
synthfreak(parallel worlds)
athens-greece
1 group owner-moderator

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