Sequencer Idea

[Tony Scharf]

Its an 8 stage sequential switch married with CV sources and SH circuits.  I can build a very rudimentary 4 stage version using the Doepfer Quad Sequential Switch. They have another module that has 8 stages that has Track/Hold capability, but its't quite there either. 
So yeah, this is out there if you build it (everything is) but  you can't get it in one 40hp module.  That's where the value is.  It would take probably $1000 in modules and patch chords to build it exactly as I am envisioning.  
Tony

Date: Tue, 7 Jan 2014 22:00:04 +0100
From: tom.adam at thebigear.be
To: music-bar at lists.music-bar.org
Subject: Re: Sequencer Idea


  
    
  
  
    This will do until the tricky bit ;-)

    http://www.cgs.synth.net/modules/cgs28_seq_switch.html

    After that I would need to think about how to do this with my

    modular, but it's a challenge. Ordering a sequential switch now :-)

    

    Cheers,

    ToAd

    

    

    Tony Scharf schreef op 07/01/2014
      21:47:

    
    
      
      I've had this idea for a sequencer module for a
        while (how you could do this with MIDI, I just don't know).
         Here goes..
        

        
        It's an 8 step sequencer.  With 8 identical columns and a
          control section. let me start with the channels
        

        
        at the top, each channel has a CV knob 0 to 10v. Pretty
          standard so far.
        

        
        Under that is a switch w
ith 3 positions (Knob, Sample ,
          Track).  
        

        
        Under that there is a button to trigger the Sample and an
          input jack that accepts a trigger or gate to initiate
          sampling.
        

        
        When that step of the sequence is active, here is what
          happens in the different modes:
        Knob - standard behavior.  Whats on the knob is what is
          output
        Sample - the output of a Sample/Hold circuit that takes the
          value of an external input.  if you don't plug anything in, it
          uses an internal noise source.
        Track - the output passes whatever is at the input.  If
          nothing is at the input, the noise is output (why you want
          that, I don't know). 
        

        
        here is where it gets tricky to explain.
        

   
     
        the control section has a clock and reset input as you
          would expect, but it also has a master sample trigger input
          and master sample input.  
        

        
        The master sample input is normaled to all the channels
          inputs and breaks the normal from the noise source if
          something is plugged in there.   The master sample trigger is
          the same way.  A clock pulse or trigger there will cause all 8
          channels to take a new sample. 
        

        
        The idea is that you can have random patterns that repeate,
          but you can change any channels value by either manually
          triggering a new sample be taken or telling the whole thing to
          take a new sample.  
        

        
        oh, each channel also needs a trigger out for when that
          step is active.  a trigger 
out from one channel could be used
          to for another channel to resample or even to tell the entire
          unit to resample.  Lots of possibilities in patching.  
        

        
        Also in the control section, I would want to lift something
          from Future Retro Ravolution.  I'd like an offset knob that
          changes the step output order. a value of 0 (center) makes the
          sequence play normally.  set it to 1 and the sequence skips
          every other step.  2..skips two steps..etc. set it negative,
          and the sequencer jumps backward the same number of steps.
           set to odd numbers you can get evolving patterns to break up
          the monotony.  You can use a reset jack to always go back to
          step one at any time.
        

        
        I did a drawing on paper. I can put that into a digital
          diagram or something if you like.
        

        
        Seriously, I would like to see this made.  I've built up
          simple versions of it using individual modules but it's just
          crazy enough to be the kind of thing I think the euro
          community would love. 
        

        
        I think you could sell that for about $250 to $350 USD or
          more.   Sequencers are pretty hot items in the euro crowd. 
        

        
        Tony
        

        
      
      

      
      

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