The analysis of equal loudness contours indicates that
A) high frequencies are perceived as louder than low frequencies.
B) low frequencies are perceived as louder than high frequencies.
C) high frequencies are perceived as equally loud as low frequencies.
D) above 40 dB, all frequencies are perceived as equally loud.

Question

Quizplus · Accepted Answer

High frequencies are perceived as louder than low frequencies at the same physical sound level. This is because the human ear is more sensitive to high frequencies, and equal loudness contours demonstrate that higher sound pressure levels are required at low frequencies to achieve the same perceived loudness as at high frequencies.

The Analysis of Equal Loudness Contours Indicates That