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Convention Paper

3D Ambisonic Decoding for Stereo Loudspeakers with Headtracking

Authors: Menzies, Dylan; Fazi, Filippo Maria

AES Convention 146 · Paper 10143 · March 2019

Abstract

Compensated Amplitude Panning (CAP) is a spatial audio reproduction method for loudspeakers that takes the listener head orientation into account. Using CAP it is possible to produce stable images in all directions using only two loudspeakers. In its original formulation CAP is inherently an object-based method, with each image produced separately. Here a natural method is presented for dynamically decoding a first order Ambisonic encoding that is equivalent to using CAP to reproduce the constituents of the encoding. This has the advantage of channel-based methods that complex scenes can be reproduced with little cost, and existing Ambisonic encodings, such as those used in 360° video, can be reproduced directly.

Details

Published in
AES Convention 146
AES Convention
146
Paper number
10143
Publication date
March 6, 2019
Session subject
Spatial Audio
Affiliation
University of Southampton, Southampton, UK (See document for exact affiliation information.)
Type
Convention Paper