Companding

A-law, Mu-law compression.

Mohith N
Updated: 19 March 2026
10 min read

Companding Laws Quiz

Test your understanding of A-law and mu-law companding used in PCM telephony systems.

Question 1 of 3

Q1.The mu-law companding standard (mu = 255) is used in which region, while A-law (A = 87.56) is used in which region?