AES E-Library

AES E-Library

Investigation of the Impact of Spectral Cues from Torso Shadowing on Front-Back-Confusion and Perceived Differences along Cones of Confusion

Document Thumbnail

Front-back-confusion effects have been found to occur for sound sources where localization cue differences are insufficient to distinguish between front-back symmetric positions. However, in positions below ear level, which are of increasing interest for virtual reality applications with binaural rendering, torso shadowing introduces additional localization cues. This paper investigates if and how those additional localization cues affect front-back-confusion effects and the perceptibility of vertical position differences. Analysis of spectral cues in HRTF measurements shows substantially stronger localization cue differences below ear level compared to above. Subjective listening experiments on binaural headphones confirm significantly increased perceptibility of differences between sound source positions. In conclusion, the results show reduced front-back-confusion and increased vertical localization accuracy at low elevations, which should be considered in binaural measurement and rendering systems. Furthermore, good agreement between spectral cue analysis and subjective results was found and hence indicates a way to explain and predict perceptual differences.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this Immersive & Spatial Audio!

AES - Audio Engineering Society