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*Details: File format summary



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Name FLAC (Free Lossless Audio Codec)
Version 1.2.1
Other names  
Identifiers MIME:  audio/flac
PUID:  fmt/279
Classification Audio
Description FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality. The basic structure of a FLAC stream is: •The four byte string "fLaC" •The STREAMINFO metadata block •Zero or more other metadata blocks •One or more audio frames The first four bytes are to identify the FLAC stream. The metadata that follows contains all the information about the stream except for the audio data itself. After the metadata comes the encoded audio data.
Byte order  
Related file formats None.
Technical Environment  
Released 17 Sep 2007
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source The National Archives and Records Administration / The National Archives and Records Administration
Source date 29 Jul 2010
Source description Further information about this file format can be obtained at:
Last updated 28 Aug 2012
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