Q. Vocoders has _______ complexity and achieves _______ economy in transmission bit rate.

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Q. Which of the following is not a property that is utilized in coder design?

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Q. Speech waveforms are _______

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Q. Which of the following is not a property of pdf of speech signals?

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Q. Auto correlation function measures______ between samples of a speech signal as a function of _______

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Q. Power spectral density of speech is flat.

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Q. Spectral flatness measure is the ratio of ______ and _____

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Q. Low frequency signals contribute very little to the total speech signals.

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Q. Quantization is a process of mapping a ________ range of amplitude of a signal into a finite set of __________ amplitudes.

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Q. For a n bit quantizer, number of levels is equal to __________

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Q. Distortion produced by quantization is directly proportion to ________ and inversely proportional to ______

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Q. Signal to quantization noise ratio of a PCM encoder is given by _________

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Q. Companding technique used in the US is called ____________

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Q. An adaptive quantizer varies its ___________ in accordance to input speech signal power.

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Q. Shannon predicted that better performance can be achieved by coding one sample at a time.

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Q. ________ is a delayed decision coding technique.

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Q. The characteristics of compressor in μ-law companding are _________

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Q. What is the sequence of operations in PCM?

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Q. In Adaptive Delta Modulation, the slope error reduces and ___________

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Q. Frequency domain coders divides the speech signal into __________

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