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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Quantizer
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fluxmonkey



Joined: Jun 24, 2005
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PostPosted: Mon Aug 25, 2008 1:09 pm    Post subject: Quantizer
Subject description: what won't they think of next?
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this is in the shopping cart now, but not yet on the homepage, so my apologies if it's premature to announce... but it looks like mr. wilson is still hard at work for us...

great time to be into sdiy, innit?

b

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RF



Joined: Mar 23, 2007
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PostPosted: Mon Aug 25, 2008 1:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

Surprised Laughing
Very cool.
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neandrewthal



Joined: May 11, 2007
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PostPosted: Mon Aug 25, 2008 10:48 pm    Post subject: Reply with quote  Mark this post and the followings unread


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neandrewthal



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PostPosted: Mon Aug 25, 2008 10:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ok, now that I'm over my speechlesness I'll take 4 of these Very Happy I would really love to have more scales on one or two of them, though. Any ideas?
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Uncle Krunkus
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PostPosted: Mon Aug 25, 2008 11:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

Very nice little project!
Ray never fails to impress.

Quote:
I would really love to have more scales on one or two of them, though. Any ideas?


Probably some type of diode matrix on the DA bits? Maybe not.

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ZackZick



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PostPosted: Tue Aug 26, 2008 5:04 am    Post subject: Reply with quote  Mark this post and the followings unread

neandrewthal wrote:
Ok, now that I'm over my speechlesness I'll take 4 of these Very Happy I would really love to have more scales on one or two of them, though. Any ideas?


I think you will need to have other values on the resistor ladder R8...R27 to do that. If you want to be able to switch between different scales on the fly, you will need a 6 pole (i think) switch to connect the ladder of your choice. You could of course use trimpots instead of resistors to get adjustable scales.

I might also build one or two of this quantizers, seems nice.

/ ZZ
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neandrewthal



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PostPosted: Tue Aug 26, 2008 1:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

As long as someone can tell me exactly what to do, I'll do it Very Happy . What about a keyboard style scale selection, with an on/off switch for each note in an octave? Would that be possible?
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ericcoleridge



Joined: Jan 16, 2007
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PostPosted: Tue Aug 26, 2008 2:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

This is probably not a brilliant question, but what is the Initial Voltage pot for? Does it limit the possible output range? I don't understand.

neandrewthal wrote:
I would really love to have more scales on one or two of them, though. Any ideas?


how about the CGS Diatonic Converter, after the Quantizer CV?

This would work for Diatonic scale, no? Or is this the same thing as a half step (already available via half/whole switch)?
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Clack



Joined: Aug 08, 2005
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PostPosted: Wed Aug 27, 2008 5:48 am    Post subject: Reply with quote  Mark this post and the followings unread

weird I was looking at the CMOS cookbook the other day and sort of was thinking about how you would do somthing like this, and here it is cool! definitly an in demand module.

I think half steps are the diatonic scale?

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ericcoleridge



Joined: Jan 16, 2007
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PostPosted: Wed Aug 27, 2008 11:10 am    Post subject: Reply with quote  Mark this post and the followings unread

Crazy; It's sold out already! I didn't get one Sad
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neandrewthal



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PostPosted: Wed Aug 27, 2008 12:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

I don't think it was ever sold in yet.
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guitarfool



Joined: Feb 26, 2007
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PostPosted: Wed Aug 27, 2008 8:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

neandrewthal wrote:
I don't think it was ever sold in yet.


It was. I ordered a couple, but Ray emailed me this morning and said he has decided to make some changes to it and is doing another production run.
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RF



Joined: Mar 23, 2007
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PostPosted: Mon Sep 08, 2008 10:17 am    Post subject: Reply with quote  Mark this post and the followings unread

It's now up on the page and for sale.....
bounce
bruce
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RF



Joined: Mar 23, 2007
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PostPosted: Fri Sep 12, 2008 8:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

I got two of these in the mail today bounce

Gotta get a just a few parts I'm missing.....
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Rykhaard



Joined: Sep 02, 2007
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PostPosted: Fri Sep 12, 2008 8:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

RF wrote:
I got two of these in the mail today bounce

Gotta get a just a few parts I'm missing.....


Ooo! Already! Please keep us clued in on how well it works! With Ray releasing IT, that could save me from wrapping a Constant Current Source around every single rotary switch, for my step sequencer! Smile Smile Here's to hoping! Very Happy
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RF



Joined: Mar 23, 2007
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PostPosted: Wed Sep 17, 2008 8:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

I got the parts I was missing and put my two boards together over the last couple days Wink

I only have one of them paneled - and it's not mounted in the rack yet (nor quite perfectly calibrated) but it's working and fun to play with.
Too early for me to pass on any impressions of it - gimme a few hours of use first.

Everything seems great on the PCB - only one minor thing - no extra hole for running the ground to the panel mounted parts. I tacked a wire to one of the bypass caps.

bruce


MFOSQuant.JPG
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Same old boring look for my panels (but another great MFOS project)
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loss1234



Joined: Jul 24, 2007
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PostPosted: Fri Sep 19, 2008 10:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

got mine done tonight but it might be acting a bit fishy.

RF...do the switches only seem to change things that fit certain parameters? i think one thing i need to watch with my sources is that some are more than three octaves.

other sources it seems like you need to set the initial voltage to a certain area to get an output you can hear.

but i JUST got it done a few hours ago...so more time is needed


WHY NO GROUND HOLE??

i hate that.


(i even looked for secret holes...)


anyway..I WOULD LOVE TO HEAR MORE about the impressions you are getting RF, and also what sources you are using it on with good luck.


when calibrating it, my DVM is not giving me zero with no input...i am not sure if this is correct. should it put out something above zero no matter what?


anyway..seems cool

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Uncle Krunkus
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PostPosted: Sat Sep 20, 2008 12:11 am    Post subject: Reply with quote  Mark this post and the followings unread

loss1234 wrote:
WHY NO GROUND HOLE??

i hate that.


Surely you have a drill bit? There must be plenty of ground plane there just waiting for an extra hole to go through it! Cool Wink

(I bet I could find space for another 20! Laughing )

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loss1234



Joined: Jul 24, 2007
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PostPosted: Sat Sep 20, 2008 4:38 am    Post subject: Reply with quote  Mark this post and the followings unread

are you telling me i can just safely drill a hole into the ground plane (which seems small on this board btw)...i would think drilliing into it would mess up the board...wow what a great tip!!

i hope i can fix my issues with this today!

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Sine



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PostPosted: Sat Sep 20, 2008 4:53 am    Post subject: Reply with quote  Mark this post and the followings unread

If a board has a groundplane you could do that ... yes. But this one doesn't have one

Personally I always use solder lugs/pins or test point eyes to connect my power wiring, and it's no problem to connect two wires to such a pont.

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loss1234



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PostPosted: Sat Sep 20, 2008 5:58 am    Post subject: Reply with quote  Mark this post and the followings unread

sine

since you have this working..maybe you can help me. i got a ground by stealing it...BUT when i hook up say a sample and hold being driven by noise into input A...i only get a couple of notes (in a pretty annoying sequence) out of the quantizer output.

flipping the switches seems to add a note or take on away...but i guess i thought with a fast sample and hold, i would get nice in tune melodies that were more than three notes

what am i doing wrong?

certain sources work better than others but even my wogglebug doesnt get me that much that sounds too complex.


what i am trying to figure out is if this is how ITS SUPPOSED to sound

can anyone give me a concrete example of how to set it up and what kind of results to look for?

later i can record samples.

i dont have any solder bridges and electrically it seems fine.

i checked the seating of all my chips too.

it is DOING SOMETHING to the incoming voltage, i guess i just had hoped it would do more.

also, when i turn the knob, it seems to make major changes every 1/4 of the pot but not much finer than that.


thanks

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RF



Joined: Mar 23, 2007
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PostPosted: Sat Sep 20, 2008 6:02 am    Post subject: Reply with quote  Mark this post and the followings unread

loss1234 wrote:
i think one thing i need to watch with my sources is that some are more than three octaves....
...other sources it seems like you need to set the initial voltage to a certain area to get an output you can hear.



I have not had much time with it yet - but it seems a bit touchy, Dan.
The longer I used it the better I understood its capabilities and the better performance I got.
I had the same issues with my sources... and the initial voltage pot.

Re: the ground hole - I think we've just been so spoiled with Ray's PC Boards... it surprised me that it wasn't there Smile

Sorry I don't have more for you - I don't have it mounted in the case yet and have been doing other stuff.

bruce
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Sine



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PostPosted: Sat Sep 20, 2008 8:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Sorry loss, I have the PCB, but i'm fresh out of 40138's so i'm not able to do much testing yet Smile
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Rykhaard



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PostPosted: Sat Sep 20, 2008 9:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Sine wrote:
Sorry loss, I have the PCB, but i'm fresh out of 40138's so i'm not able to do much testing yet Smile


You meant the CD4013 B, didn't you? Wink I'd never heard of a 40138 and went searching for it in Google. (No for sure data sheet.) IS there a direct version of the 74138? Or isn't it the 4051?

Don't matter, anyhow. Very Happy Checked the schematic and it's the 4013. Smile
Gotta get a couple of boards ordered. Surprised
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Sine



Joined: Sep 10, 2007
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PostPosted: Sat Sep 20, 2008 9:43 am    Post subject: Reply with quote  Mark this post and the followings unread

*rubs eyes*

No .. I meant the 40193, must be confusing that thing with the 74138 somehow ...
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