[Lab] Controlling Light with Sound

klmckinnon at rogers.com klmckinnon at rogers.com
Thu Mar 14 17:35:32 EDT 2013

first thought:  microphone with amplifier into a:d input with a PWM output to an LED or possibly to a triac for a incandescent light.  

thoughts - would you have need of filtering for false triggering from other noises

could you latch on to an existing signal or source (since it is art and not true medical)


 From: The Big Plan - Chris B <tbp at ghostwise.com>
To: lab at artengine.ca 
Sent: Thursday, March 14, 2013 4:11 PM
Subject: [Lab] Controlling Light with Sound


Looking for some advice for an art installation. I'd like to have a light or set of lights respond to an auditory
input. I'd like the lights to turn on in time with the sound of a ventilator (a medical one). So when the ventilator is
not doing a breath, the lights would be off, but then when the ventilator starts doing a breath they would
turn on for the duration of the breath. I'd like the lights to light up and dim gradually, not just on an off.

What's a simple or best way to do this?



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