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FLAC is specifically designed for efficient packing of audio data, unlike general-purpose lossless algorithms such as DEFLATE, which are used in ZIP and gzip. While ZIP may reduce the size of a CD-quality audio file by 10–20%, FLAC is able to reduce the size of audio data by 40–50% by taking advantage of the characteristics of audio.
The resolution of binary integers increases exponentially as the word length increases: adding one bit doubles the resolution, adding two quadruples it, and so on. The number of possible values that an integer bit depth can represent can be calculated by using 2 n , where n is the bit depth. [ 1 ]
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.
According to Apple, audio files compressed with its lossless codec will use up "about half the storage space" that the uncompressed data would require. Testers using a selection of music have found that compressed files are about 40% to 60% the size of the originals depending on the kind of music, which is similar to other lossless formats. [3] [4]
EZ CD Audio Converter, FFmpeg with Mainconcept plugin (encoder only), Sonnox, Apple (decoder only), QuickTime (Mac version & decoder only). Exhale (encoder only), FFmpeg (decoding only with Fraunhofer FDK AAC library enabled for manually command, native decoding only), Android (decoder only) - Yes No No No No Vorbis Xiph.Org Foundation: 2000-05-11
In fact, if we consider files of length N, if all files were equally probable, then for any lossless compression that reduces the size of some file, the expected length of a compressed file (averaged over all possible files of length N) must necessarily be greater than N. [citation needed] So if we know nothing about the properties of the data ...
The Meridian Lossless Packing logo The Advanced Resolution logo. Meridian Lossless Packing, also known as Packed PCM (PPCM), [citation needed] is a lossless compression technique for PCM audio data developed by Meridian Audio, Ltd. MLP is the standard lossless compression method for DVD-Audio content [1] (often advertised with the Advanced Resolution logo) and typically provides about 1.5:1 ...
High-resolution PCM recordings have been released on DVD-Audio (also known as DVD-A), DualDisc (utilizing the DVD-Audio layer), or High Fidelity Pure Audio on Blu-ray. In addition, it is possible to release a high-resolution recording as either an uncompressed WAV or lossless compressed FLAC file [55] (usually at 24 bits) without down ...