Vestax 05 Pro III

[Michael Auger]

FYI the Vestax 05 Pro III is sending 8V DC to the crossfader

The Vestax 07 Pro (the one we used at the hack day) sends 10V DC to the crossfader

[jentzen mooney]

I was wondering if there are any breakdowns of where to start when trying to connect an arduino to vestax 05 Pro III or any mixer for that matter.

I searched the mailing list and checked the site, did I miss a link or some info?

Thank you

[Mudo de Nacimiento]

Hi,
It could be possible disconnecting one of the two physical chanels inside the crossfader and attach it into a analog arduino input.
Tomorrow I will try to send a detailed explanation in howto (if I forget, please remember me!)

In other hand the high frequency trick performed by Aaron Faulstich in turntable surgeon could be implemented into the raspi box and make any analog mixer midi cappable.

Cheers,
-m!

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[Mudo de Nacimiento]

Hi again!

I found a old howto wrote by a friend (koitz roller/dj Jou) where he explains (in spanish but with nice photos) how to double the useful life of vestax crossfaders. He does it cutting the two channels, useful in non vca mixers but redundant in vca ones. At end of the document he also explains the possibility to attach the second channel to a microcontroller (like arduino ie) for midi purposes. I will send it in another mail due I don't know how to attach a pdf (from brieftcase app) into a mail (from the ipad).

For the second part of the process Iook at the links below:

http://forum.arduino.cc/index.php/topic,37848.0.html

http://www.instructables.com/id/Arduino-Sensors-and-MIDI/step4/Arduino-Analog-Inputs-and-MIDI/

For the audio trick, look at these:

http://www.skrasoft.com/soft/TS/img/wiring.png

This setup is different to regular dvs setup to perform the audio trick. The idea is to generate a high frequency tone over the regular audio spectrum from soundcard which goes throught the mixer and goes back  into a different soundcard input creating a loop. Measuring the difference between original volume and recieved it is possible to determine the crossfader position. It is for one deck but it could be possible repeat the process with other frequency for another deck... 

http://www.digitalvertigo.co.uk/forum/index.php?showtopic=33437

I still will love to write some kind of "greetings page" for all the people involved in all the process (from Jesse Kriss, Jason Sadural, Dj Sniff and Norbert Feliu for the Tascam Ttm hacks related to Cdx Arduino hack to Skrat.ch team: Ramon Mathis, Gianni Horst, Remö Haverli... Aaron Faulstich) but meanwhile my big thanks and respect from these humble lines. Thanks guys!

I hope the info helps and if you need some else, please continue working and sharing... I will try to contribute as most as I can.

Best wishes once again,

-m!

Mudo de Nacimiento

Luthier electrónico y divulgador digital.

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[Michael Auger]

Are you wanting a step by step guide for how to take apart the 05 Pro III? A guide for connecting things once it is apart? A guide for building the circuit to hook up to the mixer?

-Michael

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[Dan Moore]

I have a ton of cross faders I played with the easiest is an innofader or innofader pro as you tap into one of the extra outputs on the interface board. 

I wrote an some arduino code and came up with a

from a touch screeeeee. #autocorrect
Simple circuit to read from the Rain output of the innofader. I need to work with the minis some more.

Dan

[jentzen mooney]

First off thank you for all the replies.

I did not check email updates to me, so I though that this post was basically dead.

User Error...

Thank you.

I will follow the posted links above and see what progress I can get before posting more.

I am just using the stock faders.  End goal. I am looking get an input from every knob and fader on the mixer,

Then connect it to processing to make some fun little graphics while I scratch.

[jentzen mooney]

Ok sorry I am back I read through all those links and first two are what I am looking for. Thank you.

I was also wondering about what was posted here http://fffff.at/scratch-markup-language-sml/

Are these ardunio step posted anywhere? Or any just base line knowledge to get me started on capturing the fader in out, thank you

[Mudo de Nacimiento]

Hi again,

Recheck my mails I think the "essential" steps you ask for were there... but maybe the links below could give some extra help.

;)

http://forum.djtechtools.com/showthread.php?t=21705

http://forum.arduino.cc/index.php/topic,7478.0.html

http://fuzzywobble.com/thesis/

-m!

Mudo de Nacimiento

Luthier electrónico y divulgador digital.

[jentzen mooney]

Thank you, I read these last night and poked around fuzzywobble dyi page. So thank you.

I realized I need a multimeter so I am getting that then I will start.

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[jentzen mooney]

So I kept digging and found this page that explains the hack

http://fffff.at/scratch-markup-language-fader-hack/

[Michael Auger]

Here is a write up for making a Y cable so you don't have to solder stuff to your cross-fader

http://www.instructables.com/id/Scratch-Markup-Language-VCA-Fader-Hack/

[Lee Meredith]

Hi

The only disparaging thing I can say about this hack is that it diminishes the audio and it becomes less responsive to crabbing blah blah.
For me that's unacceptable.
I haven't look through all the post here so...I'm not sure if it's been addressed already.
Though it's not perfect that's the reason I moved on to the magnetic...

President Obama Pardoning Snowden on Turntable with linear hall effect sensor placed at both ends of crossfader

crossfader hack / I love magnetic

lee

[Mudo de Nacimiento]

Hi Lee!
With the modding descibed in the pdf tutorial (suitable only for vca mixers) the signal becomes unaltered due there are two separated circuits controlled by the same physical input (cf).
In other hand hall sensor or audio trick are less invasive for sure.
The audio trick maybe is which has better resolution... But for "clicks" a (end stop) button could do the job.

To me, "midifying" the crossfader is useful for video mixing and "mixtape" features but I will love to have the blackbox with the audio trick to metadata for learning purposes and optional midi output to link with third party apps.

Thanks once again to keep this alive.
<3

-m!

[jentzen mooney]

We really need a wiki or documented process used and there results.

I will start a google doc for myself and it is useful I will just make it public.

It is of value to me to get every fader and knob position/location/voltage to ensure accurate data output.

So other ideas and short comings or findings are welcome.

[jentzen mooney]

Lee, thanks a ton for attaching your work I follow the links and love what your are doing. keep it going