The audio CDs you buy at your favorite music store are recorded at a sampling rate of ____.
A) 44.1 kHz
B) 44.1 MHz
C) 440 kHz
D) 440 MHz

Question

Quizplus · Accepted Answer

Audio CDs are recorded at a sampling rate of 44.1 kHz (kilohertz), which means that the audio signal is sampled 44,100 times per second. This is the standard sampling rate for CDs, and it provides a high-quality audio signal that is capable of reproducing most of the sounds that humans can hear. The other choices (B, C, and D) are not correct as they are either too high or too low for audio recording.

The Audio CDs You Buy at Your Favorite Music Store