Audiopanel 1.0

Monday, September 30th, 2013

I had some procrastinating to do the last two weeks. Being who I am, this usually leads to some kind of new project, in this case I finally started something I wanted to do for a long time. What’s actually new here is that I kind of finished it :) So I present you: Audiopanel 1.0.

Audiopanel 1.0

Audiopanel is an enhanced version of the [audioweb 0.1] I installed 2 years ago in my room. It’s a panel of 14 small speakers that switch the sound around like my [Diskokugel] will one day do and also is backlit by rgb-LEDs. It also has a “stereo mode” where 6 speakers each work as left and right channel. The lighting can be controlled in hue, saturation and brightness. Right now this is all done by hand, but in the future I hope it will all work via bluetooth.

What makes me proud is I made this mostly out of stuff I had lying around in my workshop somehow. I took electronic from older circuits and some broken boards and made it up as I went on. That’s why the stuff in the back looks so “modular” ;)

The whole rgb part still has some glitches. I used an HSVtoRGB patch I found in the [Arduino forum] based on formulas acquired [here] but it doesn’t seem to check out comletely yet. Also, since there is no separate GND for analog and digital signals in my circuits, the audio signal can have quite an influence on the dimmer when turned on loud. But I decided this to be a feature ;)

Using the stuff that also powers my Diskokugel, I learned quite something about the circuitry again. I know now that I could have saved my time trying to make it [louder] with a different amplifier setup by simply experimenting some with the existing pre-amp. There’s more headroom here :) Also the issue of the separate GNDs leaves me a bit concerned how this whole thing will work out inside the ball itself. We’ll see…

Audioweb 0.1

Monday, September 5th, 2011

As a special gimmick for my birthday party i used the elements of [Audiosphere] to build a web o 6×6 speakers on a wall in my room. The sensation is, of course, a different one and since its now totally at hand, I will do some more experimenting in the next weeks.


the cable length of the sphere didn't fit, so it doesn't look perfect yet. I still like it :)


Friday, July 8th, 2011

Diskokugel is a work in progress, hopefully soon to be finished. For the whole story and latest updates check [here]



I started the project “Diskokugel” in autumn 2009. The vision was to build a ball made of speakers that can be turned on and off individually. This ball would turn while sound would be “reflected” in one constant direction, just like light from a mirrorball. So I went to the [sublab], a hacker space I am co-founder of, and asked for help. I got it galore from Christian, who volunteered to design a circuit that would both be cheap and easy to build.



view gallery Thursday, July 21st, 2005

Frequenzwechsel was conceived as festival radio, connecting visitors, artistsand festival crew. As an alternative to the usual sound clash on the camping site we delivered¬† a common fm radio signal with music and information on what was going on for everybody, including the crews quarters and cafeteria. We also involved the audience by giving a platform to visitors to present their own musical projects and play as djs in our studio. (more…)