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Apple Lossless Audio Codec information


Apple Lossless Audio Codec
Developer(s)Apple Inc.
Initial releaseApril 28, 2004; 20 years ago (2004-04-28)
Stable release
October 28, 2011; 12 years ago (2011-10-28)
Repository
  • github.com/macosforge/alac Edit this at Wikidata
TypeAudio codec
LicenseApache License 2.0
Websitealac.macosforge.org
Filename extension
.m4a .caf
Developed byApple Inc.
Type of formatLossless audio
Contained byMPEG-4 Part 14
Open format?Yes
Free format?Yes

The Apple Lossless Audio Codec (ALAC), also known as Apple Lossless, or Apple Lossless Encoder (ALE), is an audio coding format, and its reference audio codec implementation, developed by Apple Inc. for lossless data compression of digital music. After initially keeping it proprietary from its inception in 2004, in late 2011 Apple made the codec available open source and royalty-free. Traditionally, Apple has referred to the codec as Apple Lossless, though more recently it has begun to use the abbreviated term ALAC when referring to the codec.[1][2]

  1. ^ "Subscribe to iTunes Match". Apple Inc. May 8, 2017. Retrieved May 31, 2017. If you have songs encoded in ALAC, WAV, or AIFF formats, we create an AAC 256 Kbps version and upload it to iCloud so that it can be played on all of your other devices.
  2. ^ "Access your music collection on all of your devices with Apple Music". Apple Inc. May 12, 2017. Retrieved May 31, 2017. We create AAC 256Kbps versions of songs that are encoded in ALAC, WAV, or AIFF formats and add the AAC version to iCloud Music Library.

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