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____ is the process of non-linear compression and expansion of analog electronic signal.

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____ is the process of non-linear compression and expansion of analog electronic signal.

(a) Quantization

(b) Companding

(c) Pulse code modulation

(d) Modulation

I had been asked this question in an internship interview.

Asked question is from Software Component Characteristics in chapter Smart Antenna & Software Component Characteristics of Cognitive Radio

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The correct option is (b) Companding

To explain I would say: Companding is the process of non-linear compression and expansion of analog electronic signal. The dynamic range of the signal is compressed at the transmitter and is expanded to the normal range at the receiver. It helps in the preservation of information content.

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