Figure 7.

Binaural distortions introduce spatial conflict and spread of ITD and ILD cues. (a) Each panel schematically depicts the KEMAR manikin in the test arena. ILD (outer arc) and ITD (inner arc) were mapped onto azimuth by interpolating measured control ITD and ILD values across azimuth. Note that because of the limited number of speakers used to measure the cues, the interpolation is coarse, and the projection does not capture expected nuances such as nonmonotonicity in the ILD across azimuth. The spatial location and extent of each colored arc depends on the weighted mean and standard deviation of the computed cues. Cues are depicted for the 4 kHz band of the 10-Hz SAM noise with the source at 0 azimuth. (b) As in (a), but for �imuth. Data extending into the rear hemifield are plotted to maintain a sense of measured variance but faded out to convey that the front-back ambiguity inherent in pure ITD and ILD values limits their interpretation. Note. ILD = interaural level difference; ITD = interaural time difference; SAM = sinusoidally amplitude-modulated.