Two points lying on the same equal loudness contour (i.e., Fletcher-Munson curve) represent
A) Two tones that are just detectable
B) two tones that are noticeably intensity
C) two tones that differ in pitch
D) two tones that are perceived to be equally loud

Question

Quizplus · Accepted Answer

Two points lying on the same equal loudness contour represent two tones that are perceived to be equally loud. The Fletcher-Munson curve shows the relationship between sound intensity (dB) and frequency (Hz) to determine the minimum sound pressure level required for a tone to be perceived as equally loud at different frequencies.

Two Points Lying on the Same Equal Loudness Contour (I