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ALAC: Apple Inc. 2004-04-28 QuickTime 7.6 Free QuickTime, iTunes, RealPlayer: MacOSforge, FFmpeg, Audiocogs [4] (decoding only) Music archival Yes No Yes Free Possible, but never implemented ALS: ISO/IEC MPEG Audio Committee 2005 ISO/IEC 14496-3 Free MPEG-4 ALS: FFmpeg (decoding only) - Yes No Yes Yes ? AMBE: Digital Voice Systems ? ? Non-free ...
The Apple Lossless Encoder (and decoder) were released as open source software under the Apache License version 2.0 on October 27, 2011. [10] [11] [12] On May 17, 2021, Apple announced that they would begin offering lossless audio in Apple Music in June 2021, with all lossless music being encoded using ALAC. [13]
Comparison of coding efficiency between popular audio formats. An audio coding format [1] (or sometimes audio compression format) is a content representation format for storage or transmission of digital audio (such as in digital television, digital radio and in audio and video files).
.m4a: An audio-only MPEG-4 file, used by Apple for unprotected music downloaded from their iTunes Music Store. Audio within the m4a file is typically encoded with AAC, although lossless ALAC may also be used. .m4b: An Audiobook / podcast extension with AAC or ALAC encoded audio in an MPEG-4 container. Both M4A and M4B formats can contain ...
ALAC: Lossless: 2004-04 Open source Yes Yes Yes Yes Yes No No No No WMA Lossless: Lossless: 2003-01 Proprietary [97] ACM [d] No No Yes Yes No No No No DTS-HD: Lossless: 2011-08 Proprietary: Yes Yes [45] Yes No No No No No No Dolby TrueHD: Lossless: 2006-04 Proprietary: Mature [ζ] Yes No No No No No No No MLP: Lossless: 1999-03 Proprietary: No ...
Unified Speech and Audio Coding (USAC, MPEG-D Part 3, ISO/IEC 23003-3) . exhale (encoder only; open source) FFmpeg (decoder only; open source) [8] IETF standards: Opus (RFC 6716) – based on SILK vocoder and CELT codec
Android 2.3 [67] and later supports AAC-LC, HE-AAC and HE-AAC v2 in MP4 or M4A containers along with several other audio formats. Android 3.1 and later supports raw ADTS files. Android 4.1 can encode AAC. [68] WebOS by HP/Palm supports AAC, AAC+, eAAC+, and .m4a containers in its native music player as well as several third-party players ...
mp3PRO vs MP3 Archived 2017-02-02 at the Wayback Machine - includes graphs comparing high-frequency performance for MP3pro (similar to HE-AAC+) Official MPEG web site; Via Licensing Corporation - HE-AAC Patent Pool; RFC 4281 - The Codecs Parameter for "Bucket" Media Types; Fraunhofer AAC Test Site