Doepfer

Hey all:

The 155 seems to have all sorts of interesting possibilities hidden in it's
corners.  The external inputs for each step seem to be one of those things
that you sort of go "wow. imagine the possibilities" at.  

Problem is, I can't really think of a good use for having a signal show up
on one step of an 8 step sequence, with an attenuator.  

What does everyone use this for mostly?  I'm sure there are some crazy
things, but damned if I can think of anything practical that can't be done
with a simple vca..

paul

well....as an example take  8 different oscillators ,plug one into each 
step....plug track output into fm input of another vco  :)

basically like a sequential switch with attenuators.

denis


Am 11.03.2005 um 00:56 schrieb Paul Wagorn:

> Hey all:
>
>  The 155 seems to have all sorts of interesting possibilities hidden 
> in it's
>  corners.� The external inputs for each step seem to be one of those 
> things
>  that you sort of go "wow. imagine the possibilities" at.�
>
>  Problem is, I can't really think of a good use for having a signal 
> show up
>  on one step of an 8 step sequence, with an attenuator.�
>
>  What does everyone use this for mostly?� I'm sure there are some crazy
>  things, but damned if I can think of anything practical that can't be 
> done
>  with a simple vca..
>
>  paul
>
>
>
>
>
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[Non-text portions of this message have been removed]

Hmm great idea.  Now I need more oscillators ;)

-----Original Message-----
From: denis goekdag [mailto:q-art@gmx.net] 
Sent: Thursday, March 10, 2005 4:24 PM
To: Doepfer_a100@yahoogroups.com
Subject: Re: [Doepfer_a100] a155 external audio/cv inputs?


well....as an example take  8 different oscillators ,plug one into each 
step....plug track output into fm input of another vco  :)

basically like a sequential switch with attenuators.

denis


Am 11.03.2005 um 00:56 schrieb Paul Wagorn:

> Hey all:
>
>  The 155 seems to have all sorts of interesting possibilities hidden 
> in it's
>  corners.  The external inputs for each step seem to be one of those 
> things
>  that you sort of go "wow. imagine the possibilities" at. 
>
>  Problem is, I can't really think of a good use for having a signal 
> show up
>  on one step of an 8 step sequence, with an attenuator. 
>
>  What does everyone use this for mostly?  I'm sure there are some crazy
>  things, but damned if I can think of anything practical that can't be 
> done
>  with a simple vca..
>
>  paul
>
>
>
>
>
> Yahoo! Groups Sponsor
>
> ADVERTISEMENT
> <22305_0205_016_b_300250_a.gif>
> <l.gif>
>
> Yahoo! Groups Links
>
> 	• 	To visit your group on the web, go to:
> http://groups.yahoo.com/group/Doepfer_a100/
>  
> 	• 	 To unsubscribe from this group, send an email to:
> Doepfer_a100-unsubscribe@yahoogroups.com
>  
> 	• 	 Your use of Yahoo! Groups is subject to the Yahoo! Terms of

> Service.
>
>  

[Non-text portions of this message have been removed]




 
Yahoo! Groups Links

> Hmm great idea.  Now I need more oscillators ;)

that's a statement that is always true for every modularsynth-geek on 
the face of this planet...

i _NEED_MORE_OSCILLATORS

(you may exchange "oscillators" for "filters","mixers","envelopes" or 
for the more general "modules"...the latter is what i always tell my 
girlfriend;) )


but where it gets really crazy is when you use a cv to select the step 
in such a setup. i.e. use the sawtooth ouput of the VCO you're 
modulating to select the active step; this way you will
  have up to 8 different modulator waveforms within 1 cycle of the 
carrier (or you could think of it as a single modulator with variable 
frequency/spectrum). be carefull with the modulation intensity though, 
this is obviously a feedback loop and tends to be rather..unstable 
(which may be exactly what one likes about this approach ;) ). maybe 
modulate pw at audiorate instead to break the loop, will give similar 
results but leaves the saw-output unchanged.
oh yeah...if you take the output of one of the trigger-rows to sync up 
all the  oscillators you can avoid clicks due to non-zero values when 
steps are switched (since the trigger signal will force them to start 
at 0V)...at least theoretically (and probably only for sines and 
triangles).


d

*	
>i _NEED_MORE_OSCILLATORS
>
>(you may exchange "oscillators" for "filters","mixers","envelopes" or 
>for the more general "modules"...the latter is what i always tell my 
>girlfriend;) )



Tell me about it. somehow I have to justify adding onto 2 different
modulars.  I have a hard enough time justifying it to myself! :-)

paul



[Non-text portions of this message have been removed]

Paul Wagorn wrote:

> Hey all:
> 
> The 155 seems to have all sorts of interesting possibilities hidden in it's
> corners.  The external inputs for each step seem to be one of those things
> that you sort of go "wow. imagine the possibilities" at.  
> 
> Problem is, I can't really think of a good use for having a signal show up
> on one step of an 8 step sequence, with an attenuator.  
> 
> What does everyone use this for mostly?  
Beside the already mentioned examples:
1.) Use the analysis module of the vocoder (A-129/1), use the different 
control signal "bands" as sources for the sequencer, use a synchronized 
drummachine as analysis signal, use the sequenced control voltage for 
any kind of modulation (very good: FM or wave shaping)

2.) I use it with a customized Boss graphic EQ, which offers a single 
output for each band; I feed the single outs to different mixers and 
feed either the mixers outputs or the single outs to steps of the 
sequencer.

Since I do not really need pots for the mix, I already thought about 
building some kind of switch matrix mixer for the EQ.


Florian