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Engineering Brief

Production and Reproduction of Program Material for a Variety of Spatial Audio Formats

Authors: Francombe, Jon; Brookes, Tim; Mason, Russell; Flindt, Rupert; Coleman, Philip; Liu, Qingju; Jackson, Philip

AES Convention 138 · Paper 199 · May 2015

Abstract

For subjective experimentation on 3D audio systems, suitable program material is needed. A large-scale recording session was performed in which four ensembles were recorded with a range of existing microphone techniques (aimed at mono, stereo, 5.0, 9.0, 22.0, ambisonic, and headphone reproduction) and a novel 48-channel circular microphone array. Further material was produced by remixing and augmenting pre-existing multichannel content. To mix and monitor the program items (that included classical, jazz, pop, and experimental music, and excerpts from a sports broadcast and a film soundtrack), a flexible 3D audio reproduction environment was created. Solutions to the following challenges were required: level calibration for different reproduction formats; bass management; and adaptable signal routing from different software and file formats.

Details

Published in
AES Convention 138
AES Convention
138
Paper number
199
Publication date
May 6, 2015
Affiliation
University of Surrey, Guildford, Surrey, UK (See document for exact affiliation information.)
Type
Engineering Brief