[GreenKeys] gone for a bit -- now back

[gil smith]

Hi folks:

Yeah, a bit off-topic.

I made it back from my exhausting annual tradeshow, the land of 103-inch 
plasma displays, speakers taller than me, ground-shaking subwoofers, and 
other new toys I'd like to have (my company makes AV switching systems to 
drive all that good stuff).  We added some music-driven lighting this year.

Here is a clip of a fun sign we made this year -- a three-foot-wide VU 
meter using led strips  (-22-dB to +3-dB, plus Peak).  Someday I'd like to 
make one with actual needles (got one almost working, using solenoids and 
1/8" wooden-dowel needles, but it is quite the control-systems problem and 
needs some more work to be accurate).  But this one is cool too (looks 
better if you click "high-quality"):

http://www.youtube.com/watch?v=keNZrihPpdQ

And here is a view of four corner VU-towers, which have about twenty led 
clusters
(-37-dB to +3-dB, plus Peak) mounted on a eight-foot aluminum channel, 
rising six feet above the truss:

http://www.youtube.com/watch?v=AasNGfp39NA

All the VU drivers are run off our audio switchers, of course, so we can 
crank them up or down as needed.  They are actually quite accurate with 
0-dB in, but it was more entertaining to push them into the red to get 
people's attention.

So anyway, I am back to handle greenkeys admin stuff again.

gil





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