<div dir="ltr">So, more stupid questions.... In having 8 octaves of notes to switch to 8 busses, each with their own switch, that's 832 switches to control. At first I thought that daisy chaining 74HC595s would work, and it probably would, but there has to be a simpler way of controlling all those switches.<div><br></div><div>CPLD, FPGA, Raspberry Pi?</div><div><br></div><div>I'm getting pretty comfortable with the analog bits of the design (except maybe being a little fuzzy on how to turn the 0-5V output to something centered around 0V that other modules would be expecting), but the programming bits of this are still over my head.</div><div><br></div><div>I am, however, learning so much from you guys!</div><div><br></div><div>-Ian</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 2, 2017 at 4:58 AM, Elain Klopke <span dir="ltr"><<a href="mailto:functionofform@gmail.com" target="_blank">functionofform@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Oh, ok, here's another question... Would it be better to have square wave outputs (what comes from the NoteDiv chips) or convert the square waves to saw waves between the NoteDiv chip and the switch matrix?<div><br></div><div>-Ian</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 2, 2017 at 1:04 AM, Elain Klopke <span dir="ltr"><<a href="mailto:functionofform@gmail.com" target="_blank">functionofform@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">The Chord Organ does look like a good start. I'll poke and prod at things to see how it goes. Thanks guys!</div><div class="m_-3794173467004293211HOEnZb"><div class="m_-3794173467004293211h5"><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Apr 1, 2017 at 4:58 PM, Quincas Moreira <span dir="ltr"><<a href="mailto:quincas@gmail.com" target="_blank">quincas@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>I was gonna say the same about the Chord Organ! I have one here, it will be the next Kit Review on my channel, up next week, which will coincide with Thonk having them back in stock.<br></div>Easy way to do paraphonic organ-like polyphony :)<br><br></div>Cheers<br></div><div class="gmail_extra"><div><div class="m_-3794173467004293211m_6536651490704267352h5"><br><div class="gmail_quote">On Sat, Apr 1, 2017 at 2:26 PM, Kylee Kennedy <span dir="ltr"><<a href="mailto:kmkennedy@gmail.com" target="_blank">kmkennedy@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sounds fun! You should try the Chord Organ firmware for Tom Whitwell's (Music Thing Modular) Radio Music for some more inspiration.<div>Might be a good place to start to see how easy it works with arduino. This ones Teensy based.</div><div>Cheers,</div><div>Kylee</div><div class="m_-3794173467004293211m_6536651490704267352m_-7430473863225144459HOEnZb"><div class="m_-3794173467004293211m_6536651490704267352m_-7430473863225144459h5"><div><br><br>On Saturday, April 1, 2017, Elain Klopke <<a href="mailto:functionofform@gmail.com" target="_blank">functionofform@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I think it could be done with an Arduino. It may need to be a Mega, but after seeing some of the LED matrix projects, some 74HC595s would work to control the switches, I'm sure.</div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Apr 1, 2017 at 2:35 PM, bill bigrig <span dir="ltr"><<a>billbigrig@yahoo.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:13px"><div><span>This would certainly be a intriguing project. Could it be done on an Arduino or 2? Or would one need to go to a higher system like </span>raspberry?</div><div>Rig.</div> <div><br><br></div><div style="display:block"> <div style="font-family:Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:13px"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div><div> <div dir="ltr"><font face="Arial" size="2"> On Saturday, April 1, 2017 11:39 AM, Elain Klopke <<a>functionofform@gmail.com</a>> wrote:<br></font></div> <br><br> </div></div><div><div><div><div><div dir="ltr">So this is another one of those instances where Ian/Elain has an idea that combines several branches from various thoughts bouncing around and kinda crashing together in a messy heap. I blame my tenure at Art School for this design process.<div><br></div><div>I've always wanted a modular since I first stumbled upon this hobby. Lack of space, time, or money has always stopped me. I've also always wanted an organ. Mostly a lack of consent from the significant other and space has quashed that one.</div><div><br></div><div>So here we go again. I have Tom Wiltshire's amazing little NoteDiv chips and things keep not panning out for the stand alone paraphonic synth. </div><div><br></div><div>I keep thinking about how the Hammond and the string synths have discrete chunks that make up the whole thing. tone generator, filters, vibrato, chorus, etc. So why isn't there a top octave tone generator module yet? </div><div><br></div><div>I think it would be interesting to have the 9 different "drawbars" on separate outputs so each harmonic could be processed separately and a mixed output for the slightly more traditional sound. Throw in a MIDI input to simplify controlling the thing. Trigger and Gate outputs. Maybe something to even select the harmonics that get switched to the outputs (more fifths, higher/lower octaves). CV inputs to automate the "drawbars" that go to the mixed output. Some sort of randomizing option would be cool too.</div><div><br></div><div>As always, thoughts and criticisms welcome. </div></div></div></div></div>______________________________<wbr>_________________<br>Synth-diy mailing list<br><a>Synth-diy@synth-diy.org</a><br><a href="http://synth-diy.org/mailman/listinfo/synth-diy" target="_blank">http://synth-diy.org/mailman/l<wbr>istinfo/synth-diy</a><br><br><br></div> </div> </div> </div></div></div></blockquote></div><br></div>
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<br></blockquote></div><br><br clear="all"><br></div></div><span class="m_-3794173467004293211m_6536651490704267352HOEnZb"><font color="#888888">-- <br><div class="m_-3794173467004293211m_6536651490704267352m_-7430473863225144459gmail_signature" data-smartmail="gmail_signature">Quincas Moreira<br>Test Pilot at VBrazil Modular</div>
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