companding

[ kuhm-pan-ding ]
/ kəmˈpæn dɪŋ /

noun

a process in which the dynamic range of a signal is reduced for recording purposes and then expanded to its original value for reproduction or playback.

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Origin of companding

First recorded in 1965–70; compand(er) + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020