Μ-Law Algorithm

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Logo of Μ-law algorithm
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What is Μ-law algorithm?

The μ-law algorithm (sometimes written "mu-law", often approximated as "u-law") is a companding algorithm, primarily used in 8-bit PCM digital telecommunication systems in North America and Japan. It is one of two versions of the G.711 standard from ITU-T, the other version being the similar A-law, used in regions where digital telecommunication signals are carried on E-1 circuits, e.g. Europe. Companding algorithms reduce the dynamic range of an audio signal. In analog systems, this can increase the signal-to-noise ratio (SNR) achieved during transmission; in the digital domain, it can reduce the quantization error (hence increasing signal to quantization noise ratio). These SNR increases can be traded instead for reduced bandwidth for equivalent SNR.

Technology Types

adviceaudio codecproposalrecommendationstandardsystem of measurement

Synonyms

G.711MuG.711μM-lawM-law algorithmMu lawMu-lawMu-law algorithmMulawPCMUU-LawUlawΜ-Law

Translations

Ley Mu (es)Llei Mu (ca)Loi µ (fr)Μ-law (de)Μ-lawアルゴリズム (ja)Мю-закон (ru)뮤 법칙 알고리즘 (ko)

Tech Info


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 — Date merged: 11/6/2021, 1:32:47 PM
 — Date scraped: 5/20/2021, 6:08:04 PM