Back Compansió Catalan Kompandierung German Compansión Spanish Kompander Estonian بازفشرده Persian Compansione Italian コンパンディング Japanese 압신 Korean Kompandor Polish Compansão Portuguese
In telecommunications and signal processing, companding (occasionally called compansion) is a method of mitigating the detrimental effects of a channel with limited dynamic range. The name is a portmanteau of the words compressing and expanding, which are the functions of a compander at the transmitting and receiving ends, respectively. The use of companding allows signals with a large dynamic range to be transmitted over facilities that have a smaller dynamic range capability. Companding is employed in telephony and other audio applications such as professional wireless microphones and analog recording.