13
AssignmentMultiple Choice

Digital Audio

Question 13 • Introduction to Information Technology - EL3701

Suppose the upper limit of human hearing is 50,000 Hz. Which of the following sampling rates would be the minimum recommendation for digital audio recording based on the Nyquist theorem?

Answer
A
25,000 Hz
B
75,000 Hz
C
10 Hz
D
100,000 Hz

Explanation

The Nyquist theorem requires a sampling rate of at least twice the highest frequency being recorded. Twice 50,000 Hz is 100,000 Hz, so the minimum recommendation is 100,000 Hz (choice D).

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