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DIG 6206 Lecture 5

Authored by Waqas Rahman

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University

Used 2+ times

DIG 6206 Lecture 5
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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In PCM, _______ results in a sequence of samples that retain the shape of the analog signal.

Ideal Sampling

Natural Sampling

Sample and hold

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the Nyquist theorem, the sampling rate must be at least 2 times the _______ contained in the signal

Lowest frequency

Avergae frequency

Highest frequency

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The _____ process is sometimes referred to as pulse amplitude modulation

(PAM).

Sampling

Quantization

Encoding

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In _______, the data is generated bit by bit.

Sampling

Quantization

Pulse Code Modulation

Delta Modulation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In delta modulation, ______ occurs when the step size of the quantizer is too small to follow the rapid changes in the analog signal.

Quantization noise

Slope Overload

Pulse Amplitude Modulation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ______, when several consecutive bits have the same value, the encoder and decoder assume that slope overload is occurring, and the step size becomes progressively larger

Pulse Amplitude Modulation

Pulse Code Modulation

Delta Modulation

Adaptive Delta Modulation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________ in delta modulation occurs when the step size is too large, making it difficult to accurately reconstruct small variations in the input signal.

Sampling

Granular Noise

Slope Overload

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