Virtual reality based pointing method for localisation experiments in spatial audio
* Presenting author
As the accurate placement of sources is an important quality in spatial sound reproduction, listening tests strive to investigate the localisation of virtual sources. The applied pointing method, which the test subjects report the perceived direction with, is crucial for meaningful results. Several studies revealed that pointing with the head in direction of the source while being assisted by visual feedback for the direction delivered the most accurate results. In particular, providing visual feedback by a head-mounted display has been shown to be a promising method which also enables the investigation of the localisation of elevated sources. This study combines the virtual representation of sound fields by dynamic binaural synthesis via headphones with the use of a head-mounted display for visual feedback. Stimuli consisted of point sources synthesised by head-related transfer functions. Comparison with the results of previous studies proves that the method provides a valid instrument for the investigation of localisation properties of spatial reproduction methods.