This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be "Fair," 14 points "Good," and 26 points and above all "Excellent" on the grading scale, for both spatial and timbral fidelity.
|Title of host publication||Proceedings of the 147th AES Convention|
|Editors||Areti Andreopoulou , Braxton Boren|
|Publisher||Audio Engineering Society|
|Publication status||Published - 8 Oct 2019|
|Event||147th Audio Engineering Society Convention - Jarvits Center, New York, United States|
Duration: 16 Oct 2019 → 19 Oct 2019
Conference number: 147
|Conference||147th Audio Engineering Society Convention|
|Period||16/10/19 → 19/10/19|
Johnson, D., & Lee, H. (2019). The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity. In A. Andreopoulou , & B. Boren (Eds.), Proceedings of the 147th AES Convention  Audio Engineering Society.