How to use iTunes Match to upgrade audio quality
Accessing your iTunes library from other computers and iOS devices is the chief benefit of iTunes Match, but it's not the only benefit. You can use iTunes Match to upgrade the low-bit-rate tracks in your library to 256kbps AAC files.
After subscribing to iTunes Match and letting it back up your library, all you need to do is create a Smart Playlist to round up all the songs in your library with bit rates less than 256kbps, take the leap of faith of deleting those files, and then use iTunes Match to download 256kbps versions of the songs you just deleted. Here are the steps required to perform this audio upgrade:… Read more