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What (who) is 842 (compression algorithm) - definition
842 (compression algorithm)
842, 8-4-2, or EFT is a data compression algorithm. It is a variation on the Lempel–Ziv compression algorithm with a limited dictionary length.
data compression
![Comparison of [[spectrogram]]s of audio in an uncompressed format and several lossy formats. The lossy spectrograms show [[bandlimiting]] of higher frequencies, a common technique associated with lossy audio compression.](https://commons.wikimedia.org/wiki/Special:FilePath/AudiodatenkompressionManowarThePowerOfThySword.jpg?width=200 "Comparison of [[spectrogram]]s of audio in an uncompressed format and several lossy formats. The lossy spectrograms show [[bandlimiting]] of higher frequencies, a common technique associated with lossy audio compression.")
![[[MP3]], an example of a lossy file format compared to [[WAV]].](https://commons.wikimedia.org/wiki/Special:FilePath/MP3 compression.jpg?width=200 "[[MP3]], an example of a lossy file format compared to [[WAV]].")
![Solidyne 922: The world's first commercial audio bit compression [[sound card]] for PC, 1990](https://commons.wikimedia.org/wiki/Special:FilePath/Placa-audioPC-925.jpg?width=200 "Solidyne 922: The world's first commercial audio bit compression [[sound card]] for PC, 1990")
PROCESS OF ENCODING INFORMATION USING FEWER BITS THAN THE ORIGINAL REPRESENTATION
Multimedia compression; Data compression/multimedia compression; Video compression; Data compression algorithm; Compression algorithm; Uncompression; File compression; Data Compression; Block compression; Spatial compression; Temporal compression; Intelligent Compression; Transparent decompression; Compression algorithms; Datacompression; Source Coding; Bit-rate reduction; File compressing; Digital audio compression; Lossless audio compression; Compression program; Compression utility; Coding techniques; Source coding; Audio data compression; Lossless audio; Perceptual audio coding; Video Compression; Lossless Audio; Negabyte; Sound compression; Audio compression (data); Compression software; Decompression software; Compressed data; Video data compression; Video encoding; Encoding software; Data decompression; Lossy audio compression; Uncompressed; Compressed video; Compressed digital video; Digital video compression; Lossless video compression; Text compression; Genetic compression algorithm; Algorithms for lossless data compression; History of video compression; Perceptual audio coder; Compression techniques; Machine learning and data compression; History of audio compression
<algorithm> compression. Probably to distinguish it from
(electronic) signal compression.
(1995-04-02)
compressed video
PROCESS OF ENCODING INFORMATION USING FEWER BITS THAN THE ORIGINAL REPRESENTATION
Multimedia compression; Data compression/multimedia compression; Video compression; Data compression algorithm; Compression algorithm; Uncompression; File compression; Data Compression; Block compression; Spatial compression; Temporal compression; Intelligent Compression; Transparent decompression; Compression algorithms; Datacompression; Source Coding; Bit-rate reduction; File compressing; Digital audio compression; Lossless audio compression; Compression program; Compression utility; Coding techniques; Source coding; Audio data compression; Lossless audio; Perceptual audio coding; Video Compression; Lossless Audio; Negabyte; Sound compression; Audio compression (data); Compression software; Decompression software; Compressed data; Video data compression; Video encoding; Encoding software; Data decompression; Lossy audio compression; Uncompressed; Compressed video; Compressed digital video; Digital video compression; Lossless video compression; Text compression; Genetic compression algorithm; Algorithms for lossless data compression; History of video compression; Perceptual audio coder; Compression techniques; Machine learning and data compression; History of audio compression
Wikipedia
842 (compression algorithm)
842, 8-4-2, or EFT is a data compression algorithm. It is a variation on the Lempel–Ziv compression algorithm with a limited dictionary length.
