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You could still use a 555, just insert a comparator on the capacitor ramp and trigger a second pulse with the voltage comparator. OR the pulses together, so the 555 does the 1 and 3 and the comparator does the 2 and 4. Now adjusting the comparator level moves the variable 2 and 4 relative to the fixed 1 and 3.<BR>
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<B>From: </B>mark verbos <mverbos@earthlink.net><BR>
<B>Date: </B>Fri, 30 May 2003 14:15:57 -0400<BR>
<B>To: </B>synth DIY <synth-diy@dropmix.xs4all.nl><BR>
<B>Subject: </B>Re: [sdiy] Experimental Hardware Neurons<BR>
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<BLOCKQUOTE>swing is a delay of the 2nd and 4th 16th note in each beat. On a TR-909 you have several settings for ammounts of delay, I'm assuming based on skipping to a later pulse from the master clock. One could also make a swing circuit that has a continuous knob for amount. A trigger delay on every other pulse. 4013 to select which pulse train, the normal or delayed. OR.... set up a different delay on each beat with a sequencer, "groove quantize", but how do you make the early notes? hmmmm. I have thought about this a bit, I don't know. <BR>
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Maybe a "sequencer" with switches for each step to select from several pulses of the master clock both before and after the quantized beat. Then you can have notes falling before AND after the beat.<BR>
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mark<BR>
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Grant Richter wrote:<BR>
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I also want to add a "swing" function to the clock circuit. Can anybody<BR>
clarify how swing is defined? For a 1-2-3-4 pattern is it advancing or<BR>
retarding the 2 and 4, or just the 2 and in which direction?<BR>
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Thanks for the help!<BR>
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<BLOCKQUOTE>So like, what kind of interesting things will this<BR>
do??<BR>
Is it worth building one up to play with? How many<BR>
neurons do you need to do something neat?<BR>
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--Tim<BR>
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--- Grant Richter <grichter@asapnet.net> <mailto:grichter@asapnet.net> wrote:<BR>
<BLOCKQUOTE>A new experimental module is introduced with<BR>
schematic diagrams.<BR>
<BR>
Presents a very simple and inexpensive design for a<BR>
logic element inspired<BR>
by biological neurons. Adapted from work by Warren<BR>
McCulloch and Marvin<BR>
Minsky.<BR>
<BR>
<BR>
</BLOCKQUOTE>http://www.musicsynthesizer.com/Neurons/Neurons1.html<BR>
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