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 Forum index » DIY Hardware and Software
Scaled quantizer
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Feifer



Joined: May 16, 2012
Posts: 40
Location: San Diego

PostPosted: Fri Aug 30, 2013 4:09 pm    Post subject: Scaled quantizer Reply with quote  Mark this post and the followings unread

Hi all. I was looking to build a quantizer but wanted something more than just a string of half steps. Does anyone know how to make a major/minor scale quantizer like the doepfer A156? Is this something that has to get into pic programming?
Thanks.
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elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Fri Aug 30, 2013 9:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

You may want to look into the Barton Musical Circuits quantizer -- PCB and programmed PIC is $14US. It can do several different scales.

http://www.bartonmusicalcircuits.com/cvquant/
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Feifer



Joined: May 16, 2012
Posts: 40
Location: San Diego

PostPosted: Sat Aug 31, 2013 7:06 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks elmegil! Looks very compact. Kind of a different method than what I was expecting with the filtered PWM. I was expecting a DAC to be in there too. Have you tried this board before? If so does it sound like it hits the notes in tune?
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elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Sat Aug 31, 2013 7:38 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes, I have one and have used it. The only limitation that sometimes catches me up is that it has a hard stop at 0V & 5V, so I can't use LFO input with it. Which isn't to say it's not exactly what it advertises itself to be, a simple quantizer.
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soundworker



Joined: May 31, 2013
Posts: 5
Location: Germany

PostPosted: Mon Sep 02, 2013 1:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

look at ACX: http://www.acxsynth.com/quantizer/quantizerfr.htm
I build it, an it works.
For changing scales look at associated Forum to change Pic code.
Burn PIC with simple JDM Programmer possible. SW IC Prog.

But I recommend PICKit2 (Clone 20,--) and SW from Microchip. Its easy and controllable. JDM is obsolete for newer PIC classes, I learned.

best willi
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