Multiple choice technology

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

  1. 48.4 kHz

  2. 22,050 Hz

  3. 44.1 kHz

  4. 48 kHz
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C Correct answer
Explanation

The standard sampling rate for audio CDs is 44.1 kHz (44,100 samples per second). This rate was chosen because it can accurately capture frequencies up to 20 kHz, which covers the full range of human hearing (20 Hz to 20 kHz), following the Nyquist theorem which states the sampling rate must be at least double the highest frequency.

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