The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (iii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 8 7 6 15 14 13 12 11 10 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.
The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (iii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 8 7 6 15 14 13 12 11 10 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.
Introductory Circuit Analysis (13th Edition)
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Publisher:Robert L. Boylestad
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Transcribed Image Text:The following figures show part of an analogue signal being digitised, at two different
sampling rates. Make your explanation brief.
(1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect
the file sizes after digitisation.
(ii) Which of the two sampling rates would you consider to be the least efficient to
reproduce the original analogue signal accurately?
(iii) What is the preferred digital sample rate (frequency) of an analogue audio signal
that would be needed to accurately reproduce the original signal?
Figure 1
Figure 2
15
14
13
12
11
10
6.
8
7
6
15
14
13
12
11
10
4
(iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and
Figure 2.
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