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The process of signal compression and expansion used to reduce distortion and noise is called _____(a) Amplification(b) Companding(c) Compressing(d) ModulatingThis question was addressed to me in an interview for internship.This intriguing question comes from Pulse Modulation topic in chapter Digital Communication Techniques of Avionics

Answer» RIGHT option is (b) Companding

The explanation: To reduce the effects of NOISE and DISTORTION in pulse MODULATION, a process called companding is DONE. Companding is a process of signal compression and expansion.


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