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Blog about: video synthesis ◯ visual bending ◯ glitch art ◯ DIY video gear

videosynthΩhm_2 proto Arduino Due video synth / audio visualizer (photos and video)


top view

The first prototype of the videosynthΩhm_2 is finished!
The videosynthΩhm_2 is a sort of video synthesizer or better a pattern generator that reacts to incoming audio. It is designed with live performance in mind.

The video output is lowfi, 8 bit style, glitchy and a little weird ;-)

 
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This is my first bigger project with the Arduino Due. The Arduino Due is a nice board with more power as the standard Arduino. I'm using the Due VGA library by stimmer for generating a composite video signal. The library has basic graphics functions for points, lines, triangles, circles and rectangles and supports color output.

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Specs:
  • Arduino Due running VGA DUE library with custom sketch
  • Seven band graphic equalizer IC MSGEQ7
  • Audio in for an amplified electret microphone
  • 7 potentiometers
  • 4 push buttons
  • 1 RGB LED
  • Video out RCA
  Functions:
  • The first left potentiometer is used as program selector. The videosynthΩhm_2 has 8 different effects. The color of the RGB LED changes accordantly to the chosen program.
  • The other 6 potentiometers control different parameters (size, position on x axis, position on y axis, scrolling up and down, scrolling left and right, color etc)
  • If a pot is turned all the way to the right the values of the parameter changes randomly 
interface

  • First button on the left: 
    • click: clear screen
    • hold: deactivate audio reaction on all 6 parameters
  • Other buttons:
    • click: activates the audio reaction on the parameter 1,2,3
    • hold: activates the audio reaction on the parameter 4,5,6
side view

side view

side view

This are the specs planned for the next version:
  • real pcb
  • double stackable shield layout. One shield as VGA DUE library shield the other as controller shield
  • VGA and video RCA output
  • PAL and NTSC switchable
  • 6 LED + 1 RGB LED
  • 7 push buttons
  • new case design
and later perhaps:
  • LCD display
  • multidirectional buttons

Some photos from the inside:
videosynthohm_2 with electret microphone

videosynthohm_2 shield

on the left the MSGEQ7 IC an the RCA output

bottom view

Arduino Due with headers



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20 comments:

  1. Simon FireMarch 29, 2014 at 1:23 AM

    Rad. Are these for sale?

    ReplyDelete
  2. Simon FireMarch 29, 2014 at 4:06 AM

    / Could you give me a more step by step guide to build one. I'm so into this. Love you're site BTW. :)

    ReplyDelete
  3. akirasrebirthMarch 30, 2014 at 5:26 PM

    In the next month I'lll work on the final release and then I'll share schematics and code.
    In the meanwhile look at:
    http://stimmer.github.io/DueVGA/
    http://tronixstuff.com/2013/01/31/tutorial-arduino-and-the-msgeq7-spectrum-analyzer/

    ReplyDelete
  4. Simon FireMay 18, 2014 at 12:51 PM

    Alll cool. Thanks for those links!

    ReplyDelete
  5. AlterntechAugust 18, 2014 at 2:11 AM

    One of the coolest projects I have seen this year... AWESOME!.. hope the code and schematics will be released soon as open source.. great work!

    ReplyDelete
  6. AnonymousMay 21, 2015 at 5:26 PM

    and, was that released?

    ReplyDelete
  7. JoseOctober 7, 2015 at 7:24 PM

    Fantastic! Where are you on this project? I would love to buy a kit from you. Are these available? Thanks

    ReplyDelete
  8. UnknownApril 5, 2016 at 8:26 PM

    are these available for purchase yet?
    thanks in advance!

    ReplyDelete
  9. Zach MichelsJuly 6, 2016 at 10:46 PM

    Seriously cool. If you put together a kit, I bet you could sell a bunch of these. I know I want to buy one!

    ReplyDelete
  10. SagnesMarch 2, 2017 at 11:15 PM

    Would be very nice if these were for purchase as a kit

    ReplyDelete
  11. AnonymousAugust 9, 2017 at 9:58 PM

    Any chance, the code and schematics are available?

    ReplyDelete
  12. akirasrebirthAugust 9, 2017 at 10:28 PM

    sorry guys but this project will remain a prototype ... I'm working on other projects now

    ReplyDelete
  13. AnonymousDecember 28, 2017 at 11:44 AM

    Great project!
    Will you ever publish code and schematics?
    Please do it :-)

    Cheers!

    ReplyDelete
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