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Conference Paper

Energy Aware Modeling of Interchannel Level Difference Distortion Impact on Spatial Audio Perception

Authors: Delgado, Pablo; Herre, Jürgen; Taghipour, Armin; Schinkel-Bielefeld, Nadja

AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science · Paper P4-1 · July 2018

Abstract

In spatial audio processing, Inter-aural Level Difference Distortions (ILDD) between reference and coded signals play an important role in the perception of quality degradation. In order to reduce costs, there are efforts to develop algorithms that automatically predict the perceptual quality of multichannel/spatial audio processing operations relative to the unimpaired original without requiring extensive listening tests. Correct modelling of perceived ILDD has a great in?uence in the prediction performance of automated measurements. We propose an energy aware model of ILDD perception that contemplates a dependency of energy content in different spectral regions of the involved signal. Model parameters are ?tted to subjective results obtained from listening test data over a synthetically generated audio database with arbitrarily induced ILDD at different intensities, frequency regions and energy levels. Finally, we compare the performance of our proposed model over two extensive databases of real coded signals along with two state-of-the-art ILDD models.

Details

Published in
AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science
Paper number
P4-1
Publication date
July 6, 2018
Session subject
Perception of Spatial Reproduction; Automated Evaluation of Audio Quality; Psychoacoustics; Inter aural level difference distortions; Energy aware; MUSHRA; Automated quality evaluation
Affiliation
Fraunhofer IIS, Erlangen, Germany; International Audio Laboratories Erlangen, Erlangen, Germany (See document for exact affiliation information.)
Type
Conference Paper