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Frequency domain coders divides the speech signal into __________

(a) A set of frequency components

(b) A set of different amplitudes

(c) A set of time delays

(d) A set of phase components

The question was posed to me by my college professor while I was bunking the class.

This interesting question is from Frequency Domain Coding of Speech in portion Speech Coding of Wireless/Mobile

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The correct option is (a) A set of frequency components

To explain I would say: In the class of frequency domain coders, the speech signal is divided into a set of frequency components. Each frequency component is quantized and encoded separately.

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