<Ul> <Li> For an abrupt stimulus such as a click, onset ITDs are measured . An onset ITD is the time difference between the onset of the signal reaching two ears . </Li> <Li> A transient ITD can be measured when using a random noise stimulus and is calculated as the time difference between a set peak of the noise stimulus reaching the ears . </Li> <Li> If the stimulus used is not abrupt but periodic then ongoing ITDs are measured . This is where the waveforms reaching both ears can be shifted in time until they perfectly match up and the size of this shift is recorded as the ITD . This shift is known as the interaural phase difference (IPD) and can be used for measuring the ITDs of periodic inputs such as pure tones and amplitude modulated stimuli . An amplitude modulated stimulus IPD can be assessed by looking at either the waveform envelope or the waveform fine structure . </Li> </Ul> <Li> For an abrupt stimulus such as a click, onset ITDs are measured . An onset ITD is the time difference between the onset of the signal reaching two ears . </Li> <Li> A transient ITD can be measured when using a random noise stimulus and is calculated as the time difference between a set peak of the noise stimulus reaching the ears . </Li> <Li> If the stimulus used is not abrupt but periodic then ongoing ITDs are measured . This is where the waveforms reaching both ears can be shifted in time until they perfectly match up and the size of this shift is recorded as the ITD . This shift is known as the interaural phase difference (IPD) and can be used for measuring the ITDs of periodic inputs such as pure tones and amplitude modulated stimuli . An amplitude modulated stimulus IPD can be assessed by looking at either the waveform envelope or the waveform fine structure . </Li>

Match the structure of the ear to its location