Apple Pro Speaker Visual LEDs

5 replies [Last post]
Tiger G5 Kid's picture
Offline
Joined: Dec 20 2003
Posts: 134

Here's my idea. Put a ring of LEDs around my Apple Speakers and have them running off of a low pass filter to pick up just the bass. Pulsating to the beat. I just need to know if I can use the Apple Pro Speaker output to power the LEDs, will it be too much power? Or can I use the traditional headphone output?

__________________

(\ /)
(O.o)
(> <)
This is Bunny. Copy Bunny into your signature to help him on his way to world domination.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Cruller's picture
Offline
Joined: Dec 19 2003
Posts: 89
.
Tiger G5 Kid's picture
Offline
Joined: Dec 20 2003
Posts: 134
OpAmp

Why would you need an amp on such low-voltage/low-amperage LEDs?

__________________

(\ /)
(O.o)
(> <)
This is Bunny. Copy Bunny into your signature to help him on his way to world domination.

performaman's picture
Offline
Joined: Dec 20 2003
Posts: 209
USB or speaker port?

Do these work with through the USB or speaker port? 'Cuz if they go through the speaker port, then I might do this hack.
"Don't do drugs or you'll end up like the people that made HURD."
-Linus Torvalds

__________________

Egg freckles?

Tiger G5 Kid's picture
Offline
Joined: Dec 20 2003
Posts: 134
Powered Speaker Port

They're thru the speaker port, but with some help, I might figure out a way to have a different LED USB setup with a software low-pass filter. Maybe. Sleep first. Good sleep.

__________________

(\ /)
(O.o)
(> <)
This is Bunny. Copy Bunny into your signature to help him on his way to world domination.

Offline
Joined: Dec 20 2003
Posts: 851
amp

An Op-Amp turns a current source (like your speaker signal) into a voltage source (like you want for driving and LED.) The op-amp will also allow you to set the dynamic range of the speaker signal within the entire operating range of the LED.

Dr. Bob

__________________

Dr. Bob
Applefritter Admin