Object-based reverberation for spatial audio

Coleman, P; Franck, A; Jackson, P; Hughes, RJ; Remaggi, L; Melchior, F

Abstract

Object-based audio is gaining momentum as a means for future audio content to be more immersive, interactive, and accessible. Recent standardization developments make recommendations for object formats; however, the capture, production, and reproduction of reverberation is an open issue. In this paper parametric approaches for capturing, representing, editing, and rendering reverberation over a 3D spatial audio system are reviewed. A framework is proposed for a Reverberant Spatial Audio Object (RSAO), which synthesizes reverberation inside an audio object renderer. An implementation example of an object scheme utilizing the RSAO framework is provided, and supported with listening test results, showing that: the approach correctly retains the sense of room size compared to a convolved reference; editing RSAO parameters can alter the perceived room size and source distance; and, format-agnostic rendering can be exploited to alter listener envelopment.

Citation

Coleman, P., Franck, A., Jackson, P., Hughes, R., Remaggi, L., & Melchior, F. (2017). Object-based reverberation for spatial audio. Journal of the Audio Engineering Society, 65(1/2), 66-77. https://doi.org/10.17743/jaes.2016.0059

• Journal Article Type: Article
• Online Publication Date: Feb 16, 2017
• Publication Date: Feb 16, 2017
• Deposit Date: Dec 11, 2019
• Publicly Available Date: Dec 11, 2019
• Journal: Journal of the Audio Engineering Society
• Print ISSN: 1549-4950
• Publisher: Audio Engineering Society
• Volume: 65
• Issue: 1/2
• Pages: 66-77
• DOI: https://doi.org/10.17743/jaes.2016.0059
• Publisher URL: https://doi.org/10.17743/jaes.2016.0059
• Related Public URLs: http://www.aes.org/journal/