compandern.
/kəmˈpandə/, U.S. /kəmˈpændər/ Telecommunications and Electronics.
A device that improves the signal-to-noise ratio of reproduced or transmitted sound by compressing the range of amplitudes of the signal before transmission, and then expanding it on reproduction or reception; = compandor n.The principle is described in E. I. Green U.S. Patent 1,738,000 (1929).
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society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > sound recording or reproducing equipment > [noun] > device for improving signal-to-noise ratio
compander1936
society > communication > telecommunication > [noun] > signal > noise or interference > signal-to-noise ratio > device for improving
compandor1934
compander1936
1936 U.S. Patent 2,041,101 3/1 Such a device..has been given the name in the art of ‘compander’, as abbreviation for compressor and expander.
1975 Official Gaz. (U.S. Patent Office) 11 Nov. tm178/2 Companders and parts thereof for recording systems.
1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 88 Though seemingly an ideal solution, simple companders suffer from several disadvantages.
2005 Computer Music Jrnl. 29 110/1 The audio quality mimics that of a pure digital system and avoids problems arising from companders and crystal oscillator damage in traditional analog wireless systems.
This entry has been updated (OED Third Edition, September 2014; most recently modified version published online March 2022).
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n.1936