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compander Line breaks: com|pand¦er
Pronunciation: /kəmˈpandə/
(also compandor)

Definition of compander in English:


A device that improves the signal-to-noise ratio of an electrical signal by compressing the range of amplitudes of the signal before transmission, and then expanding it on reproduction or reception.
Example sentences
  • To ensure noise measurements on digital carriers (PCM systems) are valid, a holding tone must be transmitted to operate the compander and quantizing circuitry in its normal operating range.
  • High quality companders are used in studios, audio workstations, and other professional environments.
  • There are several plug-ins that take advantage of the 32-bit mode, and companders for those that don't.


1930s: blend of compressor and expander (see expand).

Definition of compander in:
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