Depth perception in interactive virtual acoustic environments using higher order ambisonic soundfields
Gavin Kearney, Marcin Gorzel, Frank Boland, and Henry Rice
In this paper, we present an investigation into the perception of source depth in interactive virtual auditory environments in the context of Higher Order Ambisonic (HOA) reproduction. In particular, we investigate the accuracy of soundfield reproduction over virtual loudspeakers (headphone reproduction) with increasing Ambisonic order. Performance of 1st, 2nd and 3rd order Ambisonics in representing distance cues is assessed in subjective audio perception tests. Results demonstrate that first order soundfields are sufficient in representing distance cues for virtual loudspeaker reproduction.