Effect of a 30° leftward head rotation on the recorded binaural signals and SPL maps for the ITD–ILD target [0 μs, 0 dB]. Free-field simulations. (a) Binaural recordings at the initial head position (IHP): The left- and right-ear signals overlap. (b) Room-scale SPL distribution for the IHP. (c) Recordings after a 30° leftward rotation: The left- and right-ear signals are separated, revealing interaural differences. (d) Local SPL map around the head at IHP. (e) Local SPL map around the head after rotation. Overall, the rotation increases both ITD and ILD relative to the IHP case.