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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. First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs ...
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. It was designed to be the successor of the MP3 format and generally achieves higher sound quality than MP3 at the same bit rate. [4] AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications.
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.
Audio file icons of various formats. An audio file format is a file format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression.
AAC-LC, HE-AAC: AAC-LC, HE-AAC v1 MP3: Lossy: 1991-12 Expired patents [88] Yes Yes MPEG-1 Audio Yes Yes [β] Yes Yes No No AC-3: Lossy: 1991-02 Expired patents Yes Yes [91] Yes Yes Yes Yes Private No No E-AC-3: Lossy: 2005-02 Patent encumbered QuickTime [γ] Yes Yes Yes No No No No No DTS: Lossy: 1993-06 Proprietary: Yes Yes No Yes Yes No ...
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. FAAD2 – open-source decoder for Advanced Audio Coding. There is also FAAC, the same project's encoder, but it is proprietary (but still free of charge). libgsm – Lossy compression
The original WMA codec, known simply as WMA, was conceived as a competitor to the popular MP3 and RealAudio codecs. [2] [3] WMA Pro, a newer and more advanced codec, supports multichannel and high-resolution audio. [4] A lossless codec, WMA Lossless, compresses audio data without loss of audio fidelity (the regular WMA format is lossy). [4]
Die Plattenkiste Albumplayer, Ripper, Converter, and CD Burner that allows you to rip to AAC and aacPlus, convert to AAC and aacPlus and burn AAC and aacPlus to gapless Audio-CD. 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