Interaural Time Delay:
The interaural time difference (or ITD) when concerning humans or animals, is the difference in arrival time of a sound between two ears. It is important in the localization of sounds, as it provides a cue to the direction or angle of the sound source from the head. If a signal arrives at the head from one side, the signal has further to travel to reach the far ear than the near ear. This pathlength difference results in a time difference between the sound’s arrivals at the ears, which is detected and aids the process of identifying the direction of sound source.
Calculating ITD using a mannequin head, But the results vary based on the obstruction object. So the values that are calculated using mannequin head might not be exact as a human tissue but we can estimate based on the angle of sound, direction and sound pressure.