Apple Lossless
Apple Lossless (also known as ALAC) is an audio codec developed by Apple Inc. for lossless data compression of digital music.
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- Lossless Compression
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What is Apple Lossless?
Apple Lossless (also known as ALAC) is an audio codec developed by Apple Inc. for lossless data compression of digital music.
Apple Lossless data is stored within an MP4 container with the filename extension .m4a – this extension is also used by Apple for AAC audio data in an MP4 container (same container, different audio encoding). However, Apple Lossless is not a variant of AAC (which is a lossy format), but rather a distinct lossless format that uses linear prediction similar to other lossless codecs such as FLAC and Shorten.
All current iPods and iPhones can play Apple Lossless-encoded files. It does not use any digital rights management (DRM) scheme by default.