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What is a FLAC File?

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, due to the fact that it is designed particularly for audio, and you can play back compressed FLAC files in your preferred player just like you would an MP3 file.

FLAC FileFLAC allows tagging, cover art, and fast seeking. FLAC is freely obtainable and supported on most operating systems, including Windows, “unix” (Linux, *BSD, Solaris, OS X). There are many software and devices that support FLAC, but the core FLAC project here maintains the format and supplies programs and libraries for working with FLAC files. FLAC tools, or employing. FLAC for guides on playing FLAC files, ripping CDs to FLAC, etc. When we say that FLAC is “Free” it says more than just that it is available at no cost. Its duty, and that neither the FLAC class nor any of the set encoding/decoding techniques are covered by any recognized patent source code that is obtainable under open-source licenses.

Notable features of FLAC:

Lossless: The encoding of audio (PCM) dataincurs no loss of information, and the decoded audio is bit-for-bit identical.


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Fast: FLAC is asymmetric in favour of decode speed. Decoding needs only integer arithmetic, and is much less compute-intensive than for a majority of perceptual codecs. Time decode performance is easily achievable on even basic hardware.

Flexible metadata: FLAC’s metadata system supports tags, cover art, seek tables, and cue sheets. Applications can produce their own APPLICATION metadata once they register an ID: New metadata blocks can be explained and implemented in future versions of FLAC without disrupting older streams or decoders.

Streamable: Each FLAC frame contains enough data to decode that frame. FLAC does not even depend on previous or following frames. FLAC uses sync codes and CRCs, which, along with framing, enable decoders to pick up in the middle of a stream with a minimum delay.

Convenient CD archiving: FLAC has a “cue sheet” metadata block for storing a CD table of contents and all track and index points. For example, you can rip a CD to a single file, then import the CD’s extracted cue sheet while encoding to yield a single file representation of the whole CD. If your original CD is broken, the cue sheet can be exported later in order to burn an precise copy.

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