Noun
English Wikipedia has an article on:compandingWikipedia
companding (usually uncountable, plural compandings)
(electronics) A process in which noise in a signal is reduced by selective compression and expansion
Graph of μ-law & A-law algorithms An A-law algorithm is a standard companding algorithm, used in European 8-bit PCM digital communications systems to optimize, i.e., modify, the dynamic range of an analog signal for digitizing. Source: Internet
This is equivalent to using a non-linear ADC as in a T-carrier telephone system that implements A-law or μ-law companding. Source: Internet
Implementation There are three ways of implementing a μ-law algorithm: ;Analog: Use an amplifier with non-linear gain to achieve companding entirely in the analog domain. Source: Internet
The logarithmic companding laws are consistent with human hearing perception in that a low-amplitude noise is heard along a low-amplitude speech signal but is masked by a high-amplitude one. Source: Internet