Mean values and standard deviation of the participants’ head positions in x (front-back), y (left-right), z (up-down) direction and head orientations in yaw, pitch and roll direction per test room. Additionally, the experimenter positions in the yaw dimension are shown (black crosses). For OL anechoic and OL room 1, no yaw orientations are shown, because the experimenters sat outside the room. In LB room 1, no head movement data was measured.