Instructables
Picture of DIY USB pedal board for live looping
I wanted to try out live looping, but I didn't want to spend $200+ on a piece of gear that might never make it to a gig. So I put together a fairly useable rig using a netbook, a USB audio interface, and this homemade pedal board. 

Live Looping:
It's a somewhat gimmicky but potentially amazing approach to musical performance: you make a noise into a magic box which records the noise and plays it back repeatedly, then you make another noise and another, and pretty soon you've piled up several noises and they are playing at the same time and you didn't have to grow extra arms or clone yourself.

Here are a couple of folks who have really made some cool noises using this technique:
Casey Driessen: http://www.youtube.com/watch?v=v9GyoUmhKU0 
Walk Off The Earth: http://www.youtube.com/watch?v=tJ8nkJ1_Ee0

These folks use big piles of nifty gear, but I didn't want to invest in a piece of equipment until I had the chance to experiment with loopiness. Enter Mobius: http://www.circularlabs.com. Free (donations accepted), robust looping software. I got it running on my trusty little workhorse of a netbook (along with my USB audio interface), and quickly noted 2 things: 1. Mobius is awesome, and 2. there is no practical way to use it for live looping without foot pedals. So I decided to make them.
 
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rcortez41 year ago
Mine looks like this , does the same thing same concept:)
13, 9:33 PM.jpg
This is pretty nice, a much more complex and polished version of how I actually have my live looping rig set up. I use Mobius, plus a xbox controller via usb for foot control.