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Convention Paper

Generalised Low Frequency 3D Audio Reproduction Over Loudspeakers

Authors: Hollebon, Jacob; Maria Fazi, Filippo

AES Convention 148 · Paper 10346 · May 2020

Abstract

There exist many different techniques to reproduce 3D audio over loudspeakers, each derived from different models and motivations. However, at low frequencies these varying reproduction methods appear more similar than previously thought. This paper produces an analytical analysis of the stereo sine law, head-tracked stereo sine law, stereo tangent law/vector base amplitude panning, crosstalk cancellation and ?rst order Ambisonics. Many of these techniques are shown mathematically to be equal or subsets of each other, resulting in a more generalised theory for low frequency audio reproduction over loudspeakers. Finally, the performance of each of the reproduction methods is considered under a low frequency analysis framework derived from a sound?eld reproduction perspective.

Details

Published in
AES Convention 148
AES Convention
148
Paper number
10346
Publication date
May 6, 2020
Session subject
Spatial Audio
Affiliation
University of Southampton (See document for exact affiliation information.)
Type
Convention Paper