Fig. 4
Close-up view of the analysed head models. The monitor points used in the analyses are shown in red. Here, \(P_{L}\) denotes the monitor point in the lower reference plane in front of the entrance to the auditory canal; \(P_{U}\) denotes the monitor point in the upper reference plane, at the position of a hearing aid microphone. The enlarged zoom view shows the auditory canals inside the heads. Points \(C_{01}\) to \(C_{15}\) describe points inside the ear canal. In the case of the KEMAR, the original, shorter auditory canal (blue) was extended with the help of an extrusion (yellow) for better comparability. The red dashed line indicates the position of the microphone in the experiment.
