Audio files come in a number of different formats. Some are lossy, such as AAC and MP3; they save space compared to the original files, but some of the original data is lost during compression. Some ...

Scenario: You’ve obtained an audio or video file that’s either in a format unsupported by the device you intend to play it on—an iOS device, traditional iPod, or your Mac, for example—or in a form ...

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