| Tip 339 | Convert Audio and Video Files |
OS X makes it easy to switch audio or video files to different formats within Finder.
Transcoding Audio
If you have an AIFF or WAV audio file that you’d like to convert to iTunes’ native MP4 audio format, which usually has the m4a file extension, just right-click it and select Encode Selected Audio Files (you might have to click Services→Encode Selected Audio files). Then select the format you’d like from the Encoder drop-down list. Arguably, the High-Quality option in the list is fine for most needs—this will match the quality of the majority of MP3 files currently available, although if you hover the mouse over each option in the list, you’ll see a tooltip explaining what the technical settings are. Once ...
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