Relative SRT changes due to HATS displacements from the reference position, calculated with BSIM (ΔSRTBSIM) in dB SNR and averaged across all test rooms. The subfigures show HATS positions in x (front-back), y (left-right) and z (up-down) directions to ±10 cm, and head rotations around the vertical axis (yaw) to ±10°. Additionally, the distribution of head movements across all participants and test words is shown in gray as a histogram.