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The Mastering Engineer’s Handbook, 3rd Edition by Bobby Owsinski

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9Mastering for Online Distribution

IT WASN’T THAT LONG AGO THAT MUCH CARE WAS NEEDED WHEN CREATING FILES TO BE SHARED ONLINE. Because of restricted storage and bandwidth, file sizes had to be kept small, and getting the highest-quality audio from them was much trickier. Today it still requires some expertise to make a great-sounding MP3 or AAC file, but the margin for error is far smaller, thanks to increased bandwidth and the resulting file sizes that go with them. Let’s take a look at how we can tweak those online audio files to get the most out of them.

MP3 Encoding

MP3 files are encoded using what’s known as lossy data compression. First of all, data compression is not at all like the audio compression that we’ve been talking about so far ...

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