It's easy to store your audio tracks on your desktop computer and then play them back through a media manager such as Apple iTunes or similar. However, you can also use iTunes to stream your audio tracks to a compatible wireless device such as the Apple Airport Express. If you want to distribute audio across multiple rooms, however, you may be better with a dedicated application that will enable you to intercept audio on your PC and re-direct this to your various Airport Express devices, situated through your home.

Airfoil 2.6.1 is a commercial tool that enables you to take just about any audio source on your PC, intercept, then distribute it to various wireless audio devices, connected to speakers through your house. This enables you to walk from room to room without missing your favorite track.

Airfoil link.

22 Sep 2008