This paper investigates the repeatability of an HRTF evaluation protocol, assessing the spatial quality of binaural stimuli, moving along pre-defined trajectories on the horizontal and median planes, on a forced-choice 9-point rating scale. The protocol assessment was based on data simulations and subjective studies. Repeatability was evaluated as a function of the size and content of the HRTF corpus, the trajectories, and the resolution of the rating scale. Analysis of the data revealed that HRTF rating is a reliable, yet challenging task with low repeatability rates of [about] 50%. Therefore participant screening through pre-tests should be used to maximize reliability of the responses.
Authors:
Andreopoulou, Areti; Katz, Brian
Affiliation:
LIMSI-CNRS, Orsay, France
AES Convention:
140 (May 2016)
Paper Number:
9597
Publication Date:
May 26, 2016
Subject:
Immersive Audio
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