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AssignmentMultiple Choice

Digital Images

Question 1 • Introduction to Information Technology - EL3701

Which of the following describes the result of lossy compression?

Answer
A
compresses audio files without loss of sound quality
B
compresses audio files with loss of sound quality
C
samples audio at higher frequencies
D
samples audio at frequencies lower than recommended by the Nyquist theorem

Explanation

Lossy compression reduces the amount of data by permanently discarding some audio information. This can reduce sound quality, so the correct choice is “compresses audio files with loss of sound quality.” Lossless compression, by contrast, preserves the original sound quality.

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