10v trigger for strobe

I guess i really have two questions

How do i make a line level high pass filter?

can i then use this signal on the collector of a transistor, what type of transistor should i use?

thanks again

I've passed this request onto the research team.. Their working hard on the problem right now.. I should have an answer in 1 week :) But seriously..

So you want a flash on the ssss ssss sss sounds...mmmm..... I'll guess 2nd order HP active filters and a peak detector??

Maybe use a PC sound card? D from BC

I wonder if the "experimenter's notebooks" that Radio Shack sells would cover the pieces for this.

Have you searched the web for information?

You need to high-pass, then you need to level detect, _then_ you need to trigger your strobe. You'll want some sort of automatic trigger level setting so that you can turn the music down when the neighbors complain yet still get your flashing lights.

A PIC wouldn't be able to keep up with the high-pass filter part, unless that was _all_ it was doing. I'd either leave the PIC for another project or use it _after_ the signal has been high-passed and level detected.

I'd also look for a circuit first, and only try to invent one if I couldn't find something that looks probable.

I would go for a low pass filter to catch the drum beats. If you use HF you might get continuous triggers which are too fast for the strobe. You dont even need a PIC, just use the output of your filter to drive the trigger.

I have used to sound to light systems on my disco laods of times. Look up "sound to light"

You're looking for an old fashioned color organ. Surf over to