Figure 6. Realistic head-related transfer functions.
(A) Photograph of stuffed guinea pig used for HRTF recordings, and three pairs of left/right ear impulse responses corresponding to the directions marked on the photograph. (B) Frequency dependence of ITD for the three azimuths shown in panel (A), in guinea pig and cat HRTFs. (C) Mean response of the model to white noise stimuli at the same azimuth (90°) for both animals, the frequency-dependent ITD curve is shown for this azimuth (dashed). (D) Performance of the model as a function of the number of cells for hemispheric (red) and pattern match (green) decoders.