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The speech coding technique that is dependent on the prior knowledge of the signal is __________

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The speech coding technique that is dependent on the prior knowledge of the signal is __________

(a) Waveform coders

(b) Vocoders

(c) Sub band coding

(d) Block transform

I have been asked this question by my college director while I was bunking the class.

My enquiry is from Frequency Domain Coding of Speech in division Speech Coding of Wireless/Mobile

1 Answer

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Best answer
The correct option is (b) Vocoders

Explanation: Vocoders are dependent on the prior knowledge of the signals. They capture the characteristic elements of audio signal and then uses this characteristic signal to affect other audio signals.

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