... on the type of sound, for example pure tones which consist of a single pitch or frequency or complex sounds which are more complicated. For pure tones these comparisons can be between the interaural time difference (ITD) which is the amount of time it takes to reach one ear being compared with the amount of time it takes to reach the other, or the interaural intensity difference (IID) which depends on the difference in intensity of the sound. ITD can help with sound localisation because if the origin of a sound is more to the left of the person for example, it will reach the left ear before the right with the amount of time between them indicating the angle. The difference will be at the maximum (about 1 millisecond) when directly to the left or right and will be zero if the sound is to the front or back ...

See this essay or coursework document in full right now