Monday, October 13, 2008
DIY Touchscreen Drummachine :)
So I finished my touchscreen interface. Myself and a few other lads are putting on a bit of a show for this years DEAF festival (Dublin Electronic Arts). We are going to do a live improvised modular synth session with custom controllers, touchscreens, some handmade electronics noise boxes, 4 camera's and a projector. The touchscreen above was made for that. If you want to come down we'll be in the Twisted Pepper on Friday 24th at 8.00 - It'll be us for an hour and then a mix of Dubstep DJs and livesets for the night.
The vids above are recorded into a cheap webcam. I used the mic in the webcam as well. Next time I'll do a better job. The first vid is a demo of the drummachine just to show that it works and that the touchscreen is very responsive. I have another vid but I had troubles uploading. Try again tommorow.
If you want to build one yourself you'll need MAX/MSP. You can download the demo for a month and give it a go. If you're a student you can get it for $59 for 9 months and the $211 after that. If you are just a working stiff (it's normally $700) go over to Dance-Tech.net and find out if you can avail of the special offer for artists (same deal as students!!!)
The touchscreen was $65 from http://www.lavatechnology.com. It's a 5 wire resitive touchscreen overlay. If you buy one from Lava mention this post and I get a free~ish one :) You can find out a lot about touchscreens if you go to Elotouch. They have a great comparison chart that makes it all pretty easy. 5 wire resitive seemed to suit me the best. It is supposed to be good for a million touchs, works ok in heat and cool (venues) and is pretty cheap.
The last piece was Eric Lyons Potpourri externals for Max/MSP. Although there are some problems for me the simplicity of the sample accurate timing wins out over many other concerns. Download it free from http://www.sarc.qub.ac.uk/~elyon/LyonSoftware/MaxMSP/
The VST effects I use come from Audio Damage. The Reverence and Dubstation are two of my favourite effects. I just find them easy to use and pretty musical. I could have used a reverb external in Max/MSP or built my own feedback delay but I like the Audio Damage stuff so leave well enough alone for now.