News:

Forum may be experiencing issues.

Main Menu

Sound to light circuit suggestions?

Started by jubal81, May 04, 2019, 05:59:52 PM

Previous topic - Next topic

jubal81

Working on a project and I'd like to add some groovy light effect. Breadboarded a couple sound-to-light circuits and found that using an entire optical compressor sidechain gives a very nice and smooth result. Problem of course is it's a lot of circuit.


Wondering if anyone has suggestions for something simpler with a smooth response.
"If you put all the knobs on your amplifier on 10 you can get a much higher reaction-to-effort ratio with an electric guitar than you can with an acoustic."
- David Fair

alanp

If you google "Colour Organ" you'll get a few dozen circuits :)

It was a very popular disco effect.
"A man is not dead while his name is still spoken."
- Terry Pratchett
My OSHpark shared projects
My website

m-Kresol

there is a VU meter on THcustoms website (iirc along with the Uboat suboctave pedal). It's based around just one IC and works quite well and has a low part count.

I've built it in SMD a while back: http://www.madbeanpedals.com/forum/index.php?topic=23911.msg233946#msg233946
I build pedals to hide my lousy playing.

My projects are labeled Quantum Effects. My shared OSH park projects: https://oshpark.com/profiles/m-Kresol
My build docs and tutorials

Leetut

#3
I used this one (LM386)




In this


jubal81

"If you put all the knobs on your amplifier on 10 you can get a much higher reaction-to-effort ratio with an electric guitar than you can with an acoustic."
- David Fair

Leetut

#5
Cheers man! I built a few to sell but haven't figured out how to do that yet 😂
https://postimg.cc/xcXTc0Qw

Willybomb

I used this in my Beast Mode.  This layout can be made quite a bit smaller if you take out the second row and you're willing to wire the resistor offboard on an LED and the grounds to wherever.

somnif

Quote from: Willybomb on May 12, 2019, 03:55:32 AM
I used this in my Beast Mode.  This layout can be made quite a bit smaller if you take out the second row and you're willing to wire the resistor offboard on an LED and the grounds to wherever.

I'm assuming that's a 386? (or some similar audio amp?)

HamSandwich

Quote from: Leetut on May 11, 2019, 05:49:18 PM
I used this one

https://postimg.cc/ZvByBzFb

In this

https://youtu.be/kYKYz5_5564

That's so cool. How do the LED's light up at different times like that? Seems like chaos in a great way.


chromesphere

Pedal Parts Shop              Youtube