Pressing the "loudness boost" button on your stereo:
A) increases the amplitude of the low-frequency and high- frequency sounds
B) increases the amplitude of the low-frequency sounds while leaving the high-frequency sounds untouched
C) increases the amplitude of the high-frequency sounds while leaving the low-frequency sounds untouched
D) does nothing to the amplitudes of the sounds

Question

Quizplus · Accepted Answer

Pressing the "loudness boost" button on a stereo typically increases the amplitude of the low-frequency sounds while leaving the high-frequency sounds untouched. This is because our ears are less sensitive to lower frequencies at lower volumes, and boosting the low frequencies can compensate for this. Boosting the high frequencies may make the sound harsh and uncomfortable.

Pressing the "Loudness Boost" Button on Your Stereo