Figure 2.

The set of five HRTFs. The location of the target speaker is kept fixed at 0° azimuth and 0° elevation. The distracting speaker is located at one of five positions (0°, 4°, 8°, 16°, or 32° azimuth, and 0° elevation). The transfer functions are shown for right and left ears (dashed black and solid gray lines, respectively) for each angle. The dashed gray line shows the ILD between the right and left ears (the distracting speaker is moved to the right of the listener so a positive value of the ILD represents a larger value at the right ear relative to the left ear). The ITD is shown for each distracter angle at the top of each subplot.