Vocoders in Wirelesss Communication - MCQs with answers

Vocoders in Wirelesss Communication - MCQs with answers

Q1. 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 coding

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Q2. The steps involved in Channel vocoders for speech transmission are

a. Envelope detection, sampling, encoding, multiplexing
b. Sampling, Envelope detection, encoding, multiplexing
c. Envelope detection, encoding, sampling, multiplexing
d. Sampling, Envelope detection, multiplexing, encoding

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Q3. Vocal tract cepstral coefficients and excitation coefficients are separated by

a. Samplers
b. Linear filters
c. Encoders
d. Multiplexers

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Q4. In voice excited vocoders, PCM transmission helps in transmission of

a. High frequency bands of speech
b. low frequency bands of speech
c. multiplexed signals
d. modulated signals

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