Speech coding for wireless communications - MCQs with answers

Speech coding for wireless communications - MCQs with answers

Q1. Speech Coders are categorized on the basis of

a. Signal compression techniques
b. Frequency of signal
c. Bandwidth of the signal
d. All of the above

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Q2. Waveform coders and Vocoders are the types of

a. Speech coders
b. Modulation technique
c. Frequency translation methods
d. Channel allocation for transmission

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Q3. PCM, DPCM, DM, ADPCM are the types of

a. Vocoders
b. Waveform coders
c. Channel allocation for transmission
d. All of the above

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Q4. Speech coding technique that is independent of the source is

a. Vocoders
b. Waveform coders
c. both a and b
None of the above

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Q5. Advantage of using waveform coders is

1. Independent of the signal source
2. Less complexity
3. Suitable for noisy environments

a. 1) and 2) are correct
b. All the three are correct
c. 1) and 3) are correct
d. 2) and 3) are correct.

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Q6. The type of frequency domain coding that divides the speech signal into sub bands is

a. Waveform coding
b. Vocoders
c. Block transform coding
d. Sub-band coding

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