Evaluation of a 3D visualization based measurement technique for source localization

Directional listening tests are an integral part of overall psychoacoustic evaluation of spatial rendering systems as well as general audiological evaluation. A new test paradigm is proposed, where, to reduce the effect of mapping bias, a 3D perspective plot of the visual scene is provided to the listener. Both visual and acoustic stimuli are used to evaluate the proposed technique against an approach where only 2D exocentric scenes are provided to the listener. Results show improved performance in some cases whereas further investigation is warranted for other cases.