World Science and Technology – 160

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160. The sampling rate, (how many samples per second are stored) for a CD is…?

(a) 48.4 kHz
(b) 22,050 Hz
(c) 44.1 kHz
(d) 48 kHz

Answer
Answer : (c)
Explanation
Explanation : CDs reproduce 44,100 samples per second. Which has a maximum frequency reproduction of 22,050 Hz, or just a hair past the upper limit of human hearing. In this way CDs can theoretically reproduce any frequency in the human hearing range.
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