| 1. | The higher the bit rate, the more speech channels can be compressed within a given bandwidth. |
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Answer: (b).False
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| 2. | Which of the following are two types of speech coders? |
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Answer: (a).Waveform coders and source coders
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| 3. | Waveform coders has _______ complexity and achieves _______ economy in transmission bit rate. |
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Answer: (c).Minimal, moderate
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| 4. | Vocoders has _______ complexity and achieves _______ economy in transmission bit rate. |
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Answer: (b).Maximum, high
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| 5. | Which of the following is not a property that is utilized in coder design? |
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Answer: (d).Uniform probability distribution of speech amplitude
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| 6. | Speech waveforms are _______ |
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Answer: (a).Bandlimited
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| 7. | Which of the following is not a property of pdf of speech signals? |
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Answer: (d).Increasing function of amplitudes between these extremes
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| 8. | Auto correlation function measures______ between samples of a speech signal as a function of _______ |
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Answer: (c).Similarity, time
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| 9. | Power spectral density of speech is flat. |
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Answer: (b).False
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| 10. | Spectral flatness measure is the ratio of ______ and _____ |
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Answer: (c).Arithmetic mean, geometric mean
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