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The difference between the unquantized x(n) and quantized xq(n) is known as ___________

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The difference between the unquantized x(n) and quantized xq(n) is known as ___________

(a) Quantization coefficient

(b) Quantization ratio

(c) Quantization factor

(d) Quantization error

This question was addressed to me by my school teacher while I was bunking the class.

The doubt is from A2D and D2A Converters topic in division DSP – Basic Signaling of Digital Signal Processing

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Right choice is (d) Quantization error

Explanation: Quantization error is the difference in the signal obtained after sampling i.e., x(n) and the signal obtained after quantization i.e., xq(n) at any instant of time.

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