So pretty much what I am wanting to do is use my arduino to make a standalone USB to 3.5mm convertor. It would be used to convert audio output from a record player to a 3.5mm jack on a sound system. I am hoping there is a way to make a standalone piece with a programmed atmega or something. I am completely new to this and have no experience with programming languages or arduino, but I do have the books!
Any help will be greatly appreciated as I have no clue what I need to do to get this project rolling