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Convention Paper

Measures of Microdynamics

Authors: Skovenborg, Esben

AES Convention 137 · Paper 9141 · October 2014

Abstract

Overall loudness variations such as the distance between soft and loud scenes of a movie are known as macrodynamics and can be quantified with the Loudness Range measure. Microdynamics, in contrast, concern variations on a (much) finer time-scale. In this study six types of objective measures—some based on loudness level, some based on peak-to-average ratio—were evaluated against perceived microdynamics. A novel measure LDR, based on the maximum difference between a “fast” and a “slow” loudness level, had the strongest perceptual correlation. Peak-to-average ratio (or crest factor) type of measures had little or no correlation. The ratings of perceived microdynamics were obtained in a listening experiment, with stimuli consisting of music and speech of different dynamical properties.

Details

Published in
AES Convention 137
AES Convention
137
Paper number
9141
Publication date
October 6, 2014
Session subject
Perception
Affiliation
TC Electronic, Risskov, Denmark (See document for exact affiliation information.)
Type
Convention Paper