compander

or com·pan·dor

[ kuhm-pan-der ]
/ kəmˈpæn dər /

noun Electronics.

(in a communications path) a combination of a compressor at one point and an expander at another, the compressor reducing the volume of a signal and the expander restoring it.

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Origin of compander

First recorded in 1965–70; com(press) + (ex)pand + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for compander

compander
/ (kəmˈpændə) /

noun

a system for improving the signal-to-noise ratio of a signal at a transmitter or recorder by first compressing the volume range of the signal and then restoring it to its original amplitude level at the receiving or reproducing apparatus

Word Origin for compander

C20: from com (pressor) + (ex) pander
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012