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
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

CDs use a standardized sampling rate of 44.1 kHz (44,100 samples per second), which was chosen to balance audio quality with storage capacity. This rate is sufficient to capture frequencies up to 22.05 kHz, covering the full range of human hearing (20 Hz to 20 kHz). Options A and D are close but incorrect - 48 kHz is used in professional audio, and 48.4 kHz is not a standard rate. Option B at 22,050 Hz is exactly half the correct rate.

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