Evaluation of audio quality requirements over extended periods of time using long duration audiovisual content

Authors:
Adam Borowiak;Ulrich Reiter;U. Peter Svensson
Affiliations:
Centre for Quantifiable Quality of Service in Communication Systems (Q2S), Norwegian University of Science and Technology (NTNU), Trondheim, Norway;Centre for Quantifiable Quality of Service in Communication Systems (Q2S), Norwegian University of Science and Technology (NTNU), Trondheim, Norway;Centre for Quantifiable Quality of Service in Communication Systems (Q2S), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Venue:
PCM'12 Proceedings of the 13th Pacific-Rim conference on Advances in Multimedia Information Processing
Year:
2012

Citing 2
Cited 0

A crowdsourceable QoE evaluation framework for multimedia content

MM '09 Proceedings of the 17th ACM international conference on Multimedia
PEMO-Q—A New Method for Objective Audio Quality Assessment Using a Model of Auditory Perception

IEEE Transactions on Audio, Speech, and Language Processing

Quantified Score

Hi-index	0.00

Visualization

Abstract

Using our novel methodology for quality evaluation of long duration multimedia content, the effect of the time dimension on quality ratings and user responses was investigated. We were particularly interested in checking how audio artifacts related to different compression rates influence participants' reactions to quality changes over extended periods of time. By employing the mixed-effects ANOVA model we have revealed dependencies between time periods and a lack of such between the subjects. It turned out that participants' quality expectations are rather constant throughout the entire duration of the clip, which also holds for subjects' reaction time to quality degradations. Furthermore, it has been shown that the test persons were substantially more sensitive to quality changes when they were able to influence the quality themselves.