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Express Paper Open Access

Binaural Externalization Processing - from Stereo to Object-Based Audio

Authors: Jot, Jean-Marc; Lukin, Alexey; Landschoot, Christopher

AES Convention 153 · Paper 56 · October 2022

Abstract

In both entertainment and professional applications, conventionally produced stereo or multi-channel audio content is frequently delivered over headphones or earbuds. Use cases involving object-based binaural audio rendering include recently developed immersive multi-channel audio distribution formats, along with the accelerating deployment of virtual or augmented reality applications and head-mounted displays. The appreciation of these listening experiences by end users may be compromised by an unnatural perception of the localization of frontal audio objects: commonly heard near or inside the listener’s head even when their specified position is distant. This artifact may persist despite the provision of perceptual cues that have been known to partially mitigate it, including artificial acoustic reflections or reverberation, head-tracking, individualized HRTF processing, or reinforcing visual information. In this paper, we review previously reported methods for binaural au-dio externalization processing, and generalize a recently proposed approach to address object-based audio rendering.

Details

Published in
AES Convention 153
AES Convention
153
Paper number
56
Publication date
October 6, 2022
Session subject
Spatial Audio
Affiliation
Virtuel Works LLC, Aptos, CA, USA; iZotope Inc, Boston, MA, USA; Virtuel Works LLC, Aptos, CA, USA (See document for exact affiliation information.)
Type
Express Paper