strobes beat to music

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=89818
Printed Date: July 06, 2025 at 2:26 AM

Topic: strobes beat to music

Posted By: dobe76
Subject: strobes beat to music
Date Posted: January 31, 2007 at 12:35 AM

WAS up everybody! i was wonderin if anybody know how i could hook up strobes lights to beat to the music in my car ??

Replies:

Posted By: Big Dog
Date Posted: January 31, 2007 at 2:31 PM

Here is a start which you can modify for your needs (taken from here https://sound.westhost.com/project62b.htm):

Bass Beat Extractor

The bass beat extractor is shown in Figure 5, and consists of an automatic gain control circuit followed by a low pass filter. The output from this circuit is fed to the next, which converts the beat into a sharp pulse suitable for triggering the strobe or chaser.

posted_image
Figure 5 - Bass Beat Extractor

This circuit uses only the +12V supply. The limiter circuit will not win any prizes for linearity or distortion, but this is of no consequence for this purpose. The diodes are 1N4148, resistors are 1/4W. Capacitors should be rated at 25V minimum.

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Prepare your future. It wasn't the lack of stones that killed the stone age.

Posted By: slinky85
Date Posted: January 31, 2007 at 6:51 PM

I just wired up all my LED's w/ proper reisistors in parallel to the outputs on the amp, it got the lows and some loud highs. It worked well but burnt out a few leds (just the smaller ones). I heard its bad for amps but had it in my previous car for at least a year w/ no noticable problems. I put an on off switch and went LED crazy. Ask around before you use my method