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FLAC (/ f l æ k /; Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio, developed by the Xiph.Org Foundation, and is also the name of the free software project producing the FLAC tools, the reference software package that includes a codec implementation.
The Live Music Archive (LMA), part of the Internet Archive, is an ad-free collection of over 250,000 concert recordings [1] in lossless audio formats. [2] The songs are also downloadable or playable in lossy formats such as Ogg Vorbis or MP3 .
The Apple Lossless Audio Codec (ALAC, / ə ˈ l æ k /), 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.
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.
Google Play Music Music locker, store, and streaming service debuted in May 2011, and shut down October 2020. Google has replaced Play Music with YouTube Music. [32] Groove Music by Microsoft debuted in 2015, linking Microsoft's Groove music player to OneDrive cloud storage. It allowed storing up to 5 GB of music in AAC, MP3 and WMA formats.
Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.
etree, or electronic tree, is a music community created in the summer of 1998 for the online trading of live concert recordings. etree pioneered the standards for distributing lossless audio on the net and only permits its users to distribute the music of artists that allow the free taping and trading of their music.
Compression ratios are around 50–60% of the original size, [48] which is similar to those for generic lossless data compression. Lossless codecs use curve fitting or linear prediction as a basis for estimating the signal. Parameters describing the estimation and the difference between the estimation and the actual signal are coded separately.