[sdiy] audio controlled light show

David Halliday dh at synthstuff.com
Wed Aug 15 04:12:49 CEST 2001


Time for another plug for this most excellent web site:
http://www.epanorama.net/

specifically:
http://www.epanorama.net/lights.html#soundlight

spend some time with this place - drill down a bit...  It is well worth it.




-> -----Original Message-----
-> From: owner-synth-diy at dropmix.xs4all.nl
-> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Theo
-> Sent: Tuesday, August 14, 2001 3:36 PM
-> To: Brett, Bill; synth-diy at dropmix.xs4all.nl
-> Subject: Re: [sdiy] audio controlled light show
-> 
-> 
-> Most dimmer packs for theater use triacs to switch the lamps.
-> Probably a lot cheaper than using (solid-state) relays.
-> 
-> There was a circuit for a "theater" dimmer pack in Elektor a 
-> while back
-> (sorry don't have the issue handy)
-> For the intended theater use it was a bit on the flimsy side, only
-> 500W/channel or so.
-> But for a audio disco show this Elektor circuit might give you all
-> inspiration you need ;)
-> 
-> Maybe try a search for "dimmer pack circuits" or something like that.
-> There are bound to be lots of examples on the web.
-> 
-> Hope this helps,
-> Theo
-> 
-> 
-> From: Brett, Bill <BJB at dolby.com>
-> 
-> > Greetings,
-> > I am building a light controller that responds to an audio 
-> input. I have
-> > figured out how I will do the audio signal to logic part 
-> of the circuit.
-> > Question... how do I turn on/off the 120 AC for the 
-> lights. I thought of
-> > using relays, but this will produce a slight lag between 
-> audio beat and
-> > light pulse. Of course this lag will be added to the lag 
-> of the light
-> > powering up. Maybe this lag is insignificant? Does anyone now of a
-> schematic
-> > that uses solid state to do this?
-> > Thanks
-> > -Bill
-> >
-> 
-> 



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