Binaural room impulse responses for interactive listener translation in a seminar room

With the goal to study the perception of position dynamic binaural synthesis for walking listeners wearing headphones, a set of binaural room impulse responses (BRIRs) and omnidirectional RIRs was measured. The measurements were conducted with a Kemar 45BA dummy head in a seminar room (9.9m x 4.7m x 3.1, T60 = 1.0s). Two loudspeakers Genelec 1030A served as sound sources. The BRIRs were measured at 16 positions arranged along a line towards the frontal loudspeaker with distances ranging from 1m - 8.50m and a positional resolution of 50cm. The second source was placed at the side of the line. The BRIR were determined for a full 360° rotation in 4° steps for each of the measurement positions. In addition, omnidirectional RIRs were measured at the 16 listening positions.

As a second test case, on a different day both loudspeakers were turned by 180° to be pointing away from the translation line. BRIRs were captured for the positions with the same angular resolution. The interior slightly differed from the first measurement. The changes are documented with photos of the room and the measurement setup.