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Convention Paper

Exploratory Studies on Perceptual Stationarity in Listening Test - Part II: Synthetic Signals with Time Varying Artifacts

Authors: Nagel, Frederik; Neuendorf, Max

AES Convention 131 · Paper 8563 · October 2011

Abstract

Many recent publications related to audio coding use the recommendation "MUltiple Stimuli with Hidden Reference and Anchor" (MUSHRA; ITU-R BS.1534-1) for the evaluation of subjective audio quality. Judging the quality of multiple conditions can be inconclusive if the employed test excerpts exhibit more than one prevalent artifact. Two papers investigate the impact of time varying artifacts in both, synthetic and real world signals and claim "perceptual stationarity" as a requirement for test sequences used in MUSHRA tests. This second part focuses on the alternation of multiple types of artifacts in one item and the differences in the ratings compared to items which only contain one of the respective types. It furthermore discusses the meaning of the temporal position of artifacts in an item.

Details

Published in
AES Convention 131
AES Convention
131
Paper number
8563
Publication date
October 6, 2011
Session subject
Listening Tests
Affiliation
International AudioLabs, Erlangen, Germany; FraunhoferInstitute for Integrated Circuits IIS, Erlangen, Germany (See document for exact affiliation information.)
Type
Convention Paper