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The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint.
MPEG-4 SLS, or MPEG-4 Scalable to Lossless as per ISO/IEC 14496-3:2005/Amd 3:2006 (Scalable Lossless Coding), [1] is an extension to the MPEG-4 Part 3 (MPEG-4 Audio) standard to allow lossless audio compression scalable to lossy MPEG-4 General Audio coding methods (e.g., variations of AAC).
MPEG-4 AVC (H.264) Lossy or lossless: 2004-08 Patent encumbered [57] Yes Yes Yes Yes Yes [III] Yes Yes [58] Yes AV1: Lossy or lossless: 2018-03 Patent claims Beta [59] Yes No No No No Planned No VP9: Lossy or lossless: 2013-06 Patent claims Yes Yes No Yes Yes No No No VP8: Lossy or lossless: 2008-09 Patent claims Yes Yes No Yes Yes No No No ...
MPEG-4 Audio Lossless Coding, also known as MPEG-4 ALS, is an extension to the MPEG-4 Part 3 audio standard to allow lossless audio compression. The extension was finalized in December 2005 and published as ISO / IEC 14496-3:2005/Amd 2:2006 in 2006. [ 1 ]
A lossless audio coding format reduces the total data needed to represent a sound but can be de-coded to its original, uncompressed form. A lossy audio coding format additionally reduces the bit resolution of the sound on top of compression, which results in far less data at the cost of irretrievably lost information.
Lossless Audio (LA) [5] – No update for 10+ years; Shorten (SHN) [6] – Officially discontinued. libshn; FFmpeg (decoding only) Lossless Predictive Audio Compression (LPAC) – Predecessor of MPEG-4 ALS; Lossless Transform Audio Compression (LTAC) – Predecessor of LPAC; MPEG-1 Audio Layer III HD – Officially discontinued
The MPEG-4 Part 3 consists of a variety of audio coding technologies – from lossy speech coding (HVXC, CELP), general audio coding (AAC, TwinVQ, BSAC), lossless audio compression (MPEG-4 SLS, Audio Lossless Coding, MPEG-4 DST), a Text-To-Speech Interface (TTSI), Structured Audio (using SAOL, SASL, MIDI) and many additional audio synthesis and ...
TTA – Lossless compression; WavPack – Hybrid lossy/lossless; Bonk – Hybrid lossy/lossless; supported by fre:ac (formerly BonkEnc) Apple Lossless – Lossless compression (MP4) Fraunhofer FDK AAC – Lossy compression (AAC) FFmpeg codecs in the libavcodec library, e.g. AC-3, AAC, ADPCM, PCM, Apple Lossless, FLAC, WMA, Vorbis, MP2, etc.