Dang thats super cool, good idea! You can hear 60hz buzz and all kinds of other weird frequencies. Really captures an intense harsh essence of the urban environment, but unexpectedly musical sometimes. I’m honestly kinda surprised how much signal you’re getting on the car taillights. I would have thought they would just be DC driven, but maybe those are on a PWM circuit or have some kind of noisy switching power supply running them.
Right about the tail lights, 10 years ago it wasn’t as interesting when the tail lights were nearly all incandescent, but now LEDs are in that place, often with a PWM controller built in to every light, I think that explains why we hear something like two oscillators detuned in unison from both tail lights together. As for the PWM frequency, it seems to differ a lot from car to car, which is good fortune here, when they make a pretty harmony. Thanks for your comments!
Dang thats super cool, good idea! You can hear 60hz buzz and all kinds of other weird frequencies. Really captures an intense harsh essence of the urban environment, but unexpectedly musical sometimes. I’m honestly kinda surprised how much signal you’re getting on the car taillights. I would have thought they would just be DC driven, but maybe those are on a PWM circuit or have some kind of noisy switching power supply running them.
Right about the tail lights, 10 years ago it wasn’t as interesting when the tail lights were nearly all incandescent, but now LEDs are in that place, often with a PWM controller built in to every light, I think that explains why we hear something like two oscillators detuned in unison from both tail lights together. As for the PWM frequency, it seems to differ a lot from car to car, which is good fortune here, when they make a pretty harmony. Thanks for your comments!
man this awersome