Jacopo Monegato wrote:
> Let's forget about all the analog part for a second. After all that
> stuff

Sounds like you're heading for trouble.  If you really care about audio
quality, you're going to have to pay attention to that stuff.

> the signal would be converted into digital, then written into a
> pic and then sent through the UART to the pc, using usb protocol.

UART and USB are mutually exclusive.  You could do either depending on
requirements.  USB would allow for better audio quality, but USB is more
complicated.

> A teacher of mine suggested to buy a 5$ 5.1 audio in
>
> My problem is here: i tried to search over the net for the driver
> specification but i'm not sure to have found it out, could anyone
> push me in the right direction?

Why can't you just use a sound card?


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