(Announcement) Video Trigger - Motion Detection software


    Jan 11 2009 | 7:17 pm
    Hi folks. I'm just letting the forum know that I made a standalone app to trigger sounds based on a camera feed. Not terribly exciting news for MAXers, but it's targeted at students who don't have access to MAX.
    The blurb: Video Trigger is a free motion detector application tailored for media artists. Attach a camera and trigger sounds whenever occupancy is detected in six user-defined areas of the video image. You have complete control over the playback logic and the signal routing. Surround is supported.
    (The source patch is included under a Creative Commons Attribution Non-Commercial Share-Alike license in case you want to use any of the code.)
    Thanks -ZLP

    • Apr 21 2010 | 2:57 pm
      no replies?
      sheesh - thanks..! (:
      i'm having the best time modifying! :)
      all the best!
      -jonas
    • Apr 21 2010 | 8:52 pm
      Please add it to our Projects so it'll get more exposure: https://cycling74.com/new-project/
      Thanks, Lilli
    • Apr 26 2010 | 3:50 am
      Added to projects. Thanks for the reminder!
    • Jun 30 2010 | 11:22 am
      Thanks a lot Zach. Saved my day, I am helping to create an installation and this was what I needed... I made some mods of course, it is running on a PC, and the whole audio part is very different, but it got me going instantly... As contribution, I made a jit.grab object, which is a simple wrapper and replaces with the correct grab object (jit.qt.grab for macintosh and jit.dx.grab for windows). I also added a possibility to choose between live input and a movie, which you can also record. This was necessary to test the setup when I am not at the original location...
      The jit.grab abstraction also needs my parentgate.js:
      outlets = 2; intlets = 1;
      function anything() { var a = arrayfromargs(messagename,arguments); if(this.patcher.parentpatcher){ outlet(0, a); } else{ outlet(1, a); } }
      jit.grab below:
      And just the grabber subpatch with the additional GUI elements which you can place to your liking into your next version:
    • Jul 01 2010 | 11:01 am
      Thanks Zach, awesome project learning a lot, also thanks stefantiedje great moddification, I am new to jitter, I am trying to trigger the trackpoints that insted of playing sound it will play a movie, and this movie will play in a jit.window and so on in the different zones, for an installation I am learning.
      Thank you in advance Rosm
    • Jul 01 2010 | 2:16 pm
      Thank you! Very excited to tweak this for triggering different videos. Much appreciated!
    • Jul 22 2010 | 1:23 pm
      Thanks Stefan, great additions. (I hadn't noticed the replies until now.) I'll take a look at your changes and roll them into the next version! -Zach
    • Jul 22 2010 | 11:12 pm
      Hi Zach,
      just did a test run on your Video Trigger and recognized a very high cpu value in the Actitity Monitor on my macbook pro (around 180%...never saw this before (-: ). I looked into your patch and saw your render/grabber trigger (in your grabber subpatch) was at 10ms. Changed it to 50ms and everything is fine now. Maybe you should change this to a higher default value, too. Thanks for this nice app!
      best stefan
    • Jul 23 2010 | 7:00 pm
      great idea, thanks.
    • Oct 15 2011 | 2:01 pm
      I'm having difficulties saving my settings. the first notice I get from my max window is the following: http://jonaswolf.com/savesetting.jpg
      thus I'm having problems manually saving my numerous zones (respectively no .xml file to be found): http://jonaswolf.com/savesetting.maxpat.zip
      this is essential for my project, for I added heaps of zones. is there any way to fix this? any help appreciated...!