Because seriously... if you have, I want to know about it.
Okay I just googled it and found this. Those sons of.... oh wait... that drum set in the video costs thousands of dollars. It was expensive enough that they don't even post the price online... which I've learned over the years means that it's usually so freaking expensive that they don't want you to konw price.
You actuall need to download a PDF of their prices. I'm not sure about the sizes of those drums in the video, but the drum shells alone cost over $5,000. As far as I can tell, that doesn't include the lights or the controller, which I would probably guess are another few thousand.
That being said... I want something unassuming... You see some dude setting up drums... looks like a normal set... then BAAMMMM. Beams of light are shooting out of it... I imagine it something like the final scene from that Indiana Jones movie... you know the one I mean. Yup, that one. Also, I think with a few hundred bucks, at least that much is in my reach.
I got some ideas up my sleeve, and the first one involved an electret microphone into the + input of comparator. I use a pot connected to the - input to set a trigger threshold. Then I connect the output of the comparator to the gate of a mosfet to turn on the LEDs, I put an RC circuit on the gate of the mosfet to control how the LED decays. Piece of cake, right? Not exactly... it took a few hours and some other parts, but I got one built on a breadboard and threw it in the bass drum as a test.
I asked Battle Toys guitarist to play a simple beat while I messed with the threshold and decay rate and was able to find a setting that decayed fast enough to catch all of the bass drum hits. I also had to raise the sensitivity quite high in order to only trigger once on each hit. Evidently a bass drum contains some serious pressure waves.... who knew?
Gary Gnu knew, and John Sununu knew... (Thanks, P.C.)
Anyway... a proof of concept design for the light attack drum kit.
More to follow!
No comments:
Post a Comment