Usb audio device using arduino.

I need to hear the audio output of my computer through a device which can be plugged into USB port instead of plugging to audio-out port. Can i use my arduino duemilanove to make such a device ?

Can i use my arduino duemilanove to make such a device ?

If you have to ask, I'd say no.

The Arduino is a USB slave. In order to get audio data from the PC, via the USB port, the Arduino would need to be a USB Host (master). There are USB Host shields that can be connected to the Arduino, but then you need to write the USB driver software. Not impossible, but not trivial, either. Fitting the code into the Arduino memory might not be possible.