A sound source located directly in front of a listener will produce the same ILD and ITD as a source located directly behind the listener until the listener:
A) closes her eyes.
B) wiggles her ears.
C) moves her head.
D) closes her eyes or wiggles her ears.

Question

Quizplus · Accepted Answer

Moving the head changes the Interaural Level Difference (ILD) and Interaural Time Difference (ITD), helping to distinguish between sounds coming from in front versus behind.

A Sound Source Located Directly in Front of a Listener