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Sub band coding codes the short time transform of a windowed signal.

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Sub band coding codes the short time transform of a windowed signal.

(a) True

(b) False

The question was posed to me in a job interview.

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

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Correct choice is (b) False

The best I can explain: It is function of block transform coding. However, a sub band coder divides the speech signal into many smaller sub bands and encodes each sub band separately according to some perceptual criterion.

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