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Convention Paper

Evaluation of Loudness Meters Using Parameterization of Fader Movements

Authors: Allan, Jon; Berg, Jan

AES Convention 135 · Paper 8973 · October 2013

Abstract

The EBU recommendation R 128 regarding loudness normalization is now generally accepted and countries in Europe are adopting the new recommendation. There is now a need to know more about how and when to use the different meter modes, Momentary and Short term, proposed in R 128, as well as to understand how different implementations of R 128 in audio level meters affect the engineers’ actions. A method is tentatively proposed for evaluating the performance of audio level meters in live broadcasts. The method was used to evaluate different meter implementations, three of them conforming to the recommendation from EBU, R 128. In an experiment, engineers adjusted audio levels in a simulated live broadcast show and the resulting fader movements were recorded. The movements were parameterized into “Fader movement,” “Adjustment time,” “Overshoot,” etc. Results show that the proposed parameters produced significant differences caused by the meters and that the experience of the engineer operating the fader is a significant factor.

Details

Published in
AES Convention 135
AES Convention
135
Paper number
8973
Publication date
October 6, 2013
Session subject
Perception
Affiliation
Luleå University of Technology, Piteå, Sweden (See document for exact affiliation information.)
Type
Convention Paper