Doepfer

I'm a guitarist and I just bought an A-135 and an A-144 to go with my A-
121 and A-146. How do I get these modules to give me a slow, clear 
morph through all 4 filters?
Your help will be appreciated!

Randall

The best way would be to wait for the VC Quadrature LFO A-143-9 and  
hook it up to the A-135. It will constantly morph between inputs. Try  
- flanger>echo>phasor>filter.

-Jh

On Feb 24, 2007, at 10:00 PM, Randall Prentice wrote:

> I'm a guitarist and I just bought an A-135 and an A-144 to go with  
> my A-
> 121 and A-146. How do I get these modules to give me a slow, clear
> morph through all 4 filters?
> Your help will be appreciated!
>
> Randall
>
>
>
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> I'm a guitarist and I just bought an A-135 and an A-144 to go with my A-
> 121 and A-146. How do I get these modules to give me a slow, clear
> morph through all 4 filters?
> Your help will be appreciated!

The standard patch is described in the A-144 user's manual on page 4. Audio
1...4 of the A-135 have to be connected to the four outputs of the A-121. CV
In off the A-144 has to be connected to the A-146 (triangle output). Pay
attention that you need an external pre-amplifier to amplify the guitar
signal to a suitable level for the A-100 filter (min. 1Vss). The level
coming from the guitar directly is much too small for the audio processing
modules of the A-100.

As already mentioned by jh the A-143-9 (VC quadrature LFO/VCO) is another
solution for controlling the A-135 for morphing effects. There is a
difference between A-144 and A-143-9 as CV source for the A-135: with the
A-144 a CV is used to control the "morph position", the A-143-9 will
generate cyclic morphing (1 -> 2 -> 3 -> 4 -> 1 -> 2 ...).

Best wishes
Dieter Doepfer

> The standard patch is described in the A-144 user's manual on page 
4. Audio
> 1...4 of the A-135 have to be connected to the four outputs of the 
A-121. CV
> In off the A-144 has to be connected to the A-146 (triangle 
output). Pay
> attention that you need an external pre-amplifier to amplify the 
guitar
> signal to a suitable level for the A-100 filter (min. 1Vss). The 
level
> coming from the guitar directly is much too small for the audio 
processing
> modules of the A-100.
> 
> As already mentioned by jh the A-143-9 (VC quadrature LFO/VCO) is 
another
> solution for controlling the A-135 for morphing effects. There is a
> difference between A-144 and A-143-9 as CV source for the A-135: 
with the
> A-144 a CV is used to control the "morph position", the A-143-9 will
> generate cyclic morphing (1 -> 2 -> 3 -> 4 -> 1 -> 2 ...).
> 
> Best wishes
> Dieter Doepfer
>

Ahhh, thanks very much for the help. Can the A-143-9 morph between, 
say, 1->3?


Randall

> Ahhh, thanks very much for the help. Can the A-143-9 morph between,
> say, 1->3?

If want to pan between two sources only I'd recommend the panning module
A-134 and use e.g. a normal LFO (triangle output) as CV source.

If you want to pan between two sources with the A-135 that possible to: for
this purpose you have to control two of the VCAs with opposite control
voltages. A voltage inverter A-175 can be used to invert the main control
voltage (e.g. the triangle output of an LFO) for the second CV input. In
this case no A-144 is necessary. But if you have an A-144 available it can
be used for this job as well. You have to attenuate the control voltage that
is used to control the A-144 (e.g. the triangle output of an LFO) so that
only two of the A-144 outputs become active.

Best wishes
Dieter Doepfer