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Conference Paper

A Design Tool to Produce Optimized Ambisonic Decoders

Authors: Moore, David; Wakefield, Jonathan

AES Conference: 40th International Conference: Spatial Audio: Sense the Sound of Space · Paper 6-9 · October 2010

Abstract

This paper describes a tool for designing Ambisonic surround sound decoders. The tool is highly flexible and provides a decoder designer with powerful features to enable the design of a decoder to their specific requirements. The tool employs computer search to find decoder parameters that best meet design criteria specified in a multiobjective fitness function. Features include: objective range-removal and importance, even performance by angle, performance that correlates with human spatial resolution, and frequency dependent and independent decoders of different orders. Performance can be optimised for a single listener or multiple off-centre listeners. The current tool works for 5.0 surround sound however it can be extended to other horizontal-only and 3D configurations. Results are shown that demonstrate the tool’s capability and flexibility for various scenarios.

Details

Published in
AES Conference: 40th International Conference: Spatial Audio: Sense the Sound of Space
Paper number
6-9
Publication date
October 6, 2010
Session subject
Spatial Audio: Spatial Rendering and Reproduction
Affiliation
Glasgow Caledonian University, Glasgow, Scotland, UK; University of Huddersfield, Huddersfield, UK (See document for exact affiliation information.)
Type
Conference Paper