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<DIV><FONT face=Arial size=2>Hi Peng</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Have you looked at this one. I like it better than
the staright analog one. You could still do what you planned with the two note
idea. Just use</FONT></DIV>
<DIV><FONT face=Arial size=2>two of these circuits.</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.musicfromouterspace.com/analogsynth/matrix_keyboard_may2004/matrix_keyboard_may2004.html">http://www.musicfromouterspace.com/analogsynth/matrix_keyboard_may2004/matrix_keyboard_may2004.html</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Just use your switches in place of the reed
switches.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Cheers</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ray</FONT></DIV></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=peng3002@yahoo.com href="mailto:peng3002@yahoo.com">Peng</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=synth-diy@dropmix.xs4all.nl
href="mailto:synth-diy@dropmix.xs4all.nl">synth-diy@dropmix.xs4all.nl</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, August 13, 2004 5:46
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [sdiy] Keyboard Controller -
needs poly help</DIV>
<DIV><BR></DIV>
<DIV> I have a few organ keyboards I saved from the garbage that I want
to convert to modular controller (obviously). They have four independant
switches to each key. I'll want to use the schematics from Ray Wilson's site :
<A
href="http://www.musicfromouterspace.com/analogsynth/keybrdcontroller.html">http://www.musicfromouterspace.com/analogsynth/keybrdcontroller.html</A></DIV>
<DIV> </DIV>
<DIV>I'm thinking if I do the switch bus connections as shown I get low note
priority. If I reverse the connections for the second switch bus I'll get high
note priority. Each bus will have its own CV,gate,trigger jacks so if I hook
one bus to VCO1 and the other to VCO2 I should get this: press one key, both
VCOs play same pitch. Hold the first and press another key and VCO1 and 2 will
see different voltages. That all seems pretty straightforward but I still have
two more switch buses to deal with. I want these to have their own
CV,gate,trigger jacks just like the other two. they'll have seperate
oscillators, too, so there's VCO1, 2, 3, and 4. Now, press four keys and
you get four different pitches. I know the two keys I'm holding in the middle
will need to work off the others (highest and lowest held notes) or else
they will play the same notes as the high and low part. Can anyone give me
some clues as to how this could be done ? I'm a novice so any keywords, advi!
ce, whatever will be greatly appreciated. </DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV>P.</DIV>
<P>
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