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Convention Paper

Implementation and Evaluation of Autonomous Multi-Track Fader Control

Authors: Mansbridge, Stuart; Finn, Saoirse; Reiss, Joshua D.

AES Convention 132 · Paper 8588 · April 2012

Abstract

A new approach to the autonomous control of faders for multi-track audio mixing is presented. The algorithm is designed to generate an automatic sound mix from an arbitrary number of monaural or stereo audio tracks of any sample rate, and to be suitable for both live and post-production use. Mixing levels are determined by the use of the EBU R-128 loudness measure, with a cross-adaptive process to bring each track to a time-varying average. A hysteresis loudness gate and selective smoothing prevents the adjustment of intentional dynamics in the music. Real-time and off-line software implementations have been created. Subjective evaluation is provided in the form of listening tests, where the method is compared against the results of a human mix and a previous automatic fader implementation.

Details

Published in
AES Convention 132
AES Convention
132
Paper number
8588
Publication date
April 6, 2012
Session subject
Emerging Audio Technologies
Affiliation
Queen Mary University of London, London, UK (See document for exact affiliation information.)
Type
Convention Paper