In this paper we investigate the just noticeable difference (JND) for the perception of horizontal and vertical angular separation between rendered virtual sound source objects for combinations of different stimuli. Listening test experiments were conducted on loudspeaker and binaural headphone reproduction, to assess differences between both playback scenarios, and how closely headphone tests can approximate JNDs for loudspeaker playback. Results show JNDs in the range of 1º– 3º for horizontal separation and in the range of 7º– 22º for vertical separation for both scenarios. Differences between loudspeaker and headphone playback were found to be signi?cant but small in comparison to the dependence on the signal content.

Authors: Dick, Sascha; Herre, Jürgen
Affiliation: International Audio Laboratories Erlangen, a joint institution of Universität Erlangen-Nürnberg and Fraunhofer Institute for Integrated Circuits IIS, Erlangen Germany
AES Conference: 2019 AES International Conference on Headphone Technology (August 2019)
Paper Number: 21
Publication Date: August 21, 2019

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