However, the MP3 file is so much smaller that it could be preferable for those who need to save space. The files are slightly bigger, but there is a bit of an increase in quality with the AAC files.Īt 256 Kbps, the difference in the files is quite hard to notice, they are virtually indistinguishable when it comes to quality, and the MP3 does a fine job of carrying quality audio.Īt 192 Kbps we would say there is a slight difference in quality. As you can see, the MP3 files are slightly smaller in each of the different encoding rates.

An example of a test of the file sizes, comparing the size of MP3 versus AAC files at the same encoding rate.