Companding in signal processing

The use of companding in signal processing is considered. The applications discussed include noise reduction as well as increasing selectivity in single sinusoid detection.

[1]  R. C. Mathes,et al.  The compandor — An aid against static in radio telephony , 1934 .

[2]  C.C. Todd.  A monolithic analog compandor , 1976, IEEE Journal of Solid-State Circuits.