If a sound is presented at an amplitude below the hearing threshold (as indicated by an equal loudness contour), the sound would:
A) appear louder than if it was presented at an amplitude above the hearing threshold
B) be perceived as pressure or pain
C) be inaudible
D) all of the above

Question

Quizplus · Accepted Answer

If a sound is presented at an amplitude below the hearing threshold, it means it is too quiet to be heard and therefore it would be inaudible. So, the correct option is C. Option A is incorrect because the sound below the hearing threshold is not perceivable. Option B is incorrect because when the sound is too loud, it may cause discomfort or pain, but a sound below the hearing threshold would not cause pressure or pain.

If a Sound Is Presented at an Amplitude Below the Hearing