Apple Lossless

   

Apple Lossless (also known as Apple Lossless Encoding or ALE) is an audio codec developed by Apple Computer, for lossless encoding of digital music.

Apple Lossless Encoding was introduced in QuickTime 6.5.1 and thus as a feature of iTunes 4.5 on April 28 2004.

Apple Lossless data is stored within an MP4 container with the filename extension .m4a. Contrary to popular belief, Apple Lossless is not a variant of AAC, but a totally new codec. iPods with a dock connector and recent firmware can play Apple Lossless encoded files.

ALE results in files that are 50-75% smaller than uncompressed AIFF or WAV files created from the same audio CD.

See also


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