Led Brightness Controlled By Guitar Signal

[waltk]

Do I need to program the IC manually?

Just to clear up a misconception...

Most ICs (that we use here) are not programmable.  You change the way they work by adding various resistors and capacitors to the circuits they are in.  The ICs (Integrated Circuits) mentioned here are just that - a collection of parts - like transistors and resistors - combined into small convenient package for you.

[MrStab]

Btw, assuming I completed it and it works, but the LEDs change too quickly for my taste. How would I make them change their brightness slower? (like delay a bit behind the guitar)

my guess would be maybe a big capacitor(s) somewhere in the signal path. someone else might wanna add to that (or disprove it!) in greater detail, though.

[deadastronaut]

Btw, assuming I completed it and it works, but the LEDs change too quickly for my taste. How would I make them change their brightness slower? (like delay a bit behind the guitar)

try it on breadboard, and if you don't like it, look at another type of envelope detector maybe....the sound2light is as simple as it gets really...but there are other 'more involved' ways..
as said earlier..

[Neta]

Thank you very much!
Just wanna say I'm very impressed with your knowledge and your amazing willingness to share it.

I'm sure gonna stay around!

Thanks


Edit:

I'm buying first breadboard
Can you help?

This for 3.10$ - http://dx.com/p/solderless-breadboard-with-400-tie-point-white-121534

or this for about 13$ (in Israeli Shekel) - http://www.dash.co.il/index.php?route=product/product&product_id=1922

Thanks again