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Index › Discussion › Exhibition › Teaching hackers to do live audio->visual
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Teaching hackers to do live audio->visual (Read 847 times)
gigertron
Teaching hackers to do live audio->visual
Apr 13th, 2009, 9:54am  
First, the goods:
http://apparentlythisispossible.com/things/bleh/proc/
in that dir, BP3DHypnobloom2 and BPSimpleFFT are the important ones.
I'm running a half day camp at a hacker con / demoparty
http://www.notacon.org/events.html#guybrush
teaching people to do visuals from live audio. The format I'm considering is 20 minute bits of theory, then 40 minutes of hacking time per hour. The audience is expected to have programming experience but not necessarily graphics coding or proc experience. They'll be a mix of win/linux/mac, so I've tried to stick to core library components.
I figured I'd start with a basic and damped FFTs and processing basics (like setup and usb audio), then move forward through beat detection, more complex processing stuff like how to author new classes and use 'em, how to haul down new libraries, 3D, and finally talk a little about how to survive a live gig.
Any suggestions or advice? I want to get the right balance between simplicity and content. This is the 2nd year I'll be presenting music viz related stuff at this event, but the first time I'm doing somethin so hands-on.
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cloister
Re: Teaching hackers to do live audio->visual
Reply #1 - Apr 13th, 2009, 10:05am  
You should give them some kind of nicely packaged object that presents the audio stream in terms of FFT components or other extracted features.  Yes, spend 20 minutes or whatever going over the theory, but them give them a nice implementation of that theory to work with so they can spend their time focusing on turning that data into nice graphics, rather than wasting lots of time (as hackers are wont to do) creating a beautiful class design to encapsulate time-variable FFT data.
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gigertron
Re: Teaching hackers to do live audio->visual
Reply #2 - Apr 13th, 2009, 10:50am  
Yeah, I'm giving them those example sketches that use the ESS and minim fft libraries to draw the basic fft data - as well as a more advanced one that uses that data to do more complex things.
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Johnny Ow
Re: Teaching hackers to do live audio->visual
Reply #3 - Apr 16th, 2009, 2:31pm  
Sounds like an interesting workshop... I'd love to see your notes or slides from this... or maybe someone with video tape?  I've been thinking about creating a Processing-based audio/visualization framework.
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