Audiovisual quality of live music streaming over mobile networks using MPEG-DASH
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Audiovisual quality of live music streaming over mobile networks using MPEG-DASH Rafael Rodrigues1 · Peter Pocta2 · Hugh Melvin3 · Marco V. Bernardo1 · Manuela Pereira1 · Antonio M. G. Pinheiro1 Received: 18 July 2019 / Revised: 2 April 2020 / Accepted: 7 May 2020 / © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The MPEG-DASH protocol has been rapidly adopted by most major network content providers and enables clients to make informed decisions in the context of HTTP streaming, based on network and device conditions using the available media representations. A review of the literature on adaptive streaming over mobile shows that most emphasis has been on adapting the video quality whereas this work examines the trade-off between video and audio quality. In particular, subjective tests were undertaken for live music streaming over emulated mobile networks with MPEG-DASH. A group of audio/video sequences was designed to emulate varying bandwidth arising from network congestion, with varying trade-off between audio and video bit rates. Absolute Category Rating was used to evaluate the relative impact of both audio and video quality in the overall Quality of Experience (QoE). One key finding from the statistical analysis of Mean Opinion Scores (MOS) results using Analysis of Variance indicates that providing reduced audio quality has a much lower impact on QoE than reducing video quality at similar total bandwidth situations. This paper also describes an objective model for audiovisual quality estimation that combines the outcomes from audio and video metrics into a joint parametric model. The correlation between predicted and subjective MOS was computed using several outcomes (Pearson and Spearman correlation coefficients, Root Mean Square Error (RMSE) and epsilon-insensitive RMSE). The obtained results indicate that the proposed approach is a viable solution for objective audiovisual quality assessment in the context of live music streaming over mobile network.
This research was co-funded by FEDER-PT2020, Portugal partnership agreement, under the project PTDC/EEI-PRO/2849/2014 - POCI-01-0145-FEDER-016693, Fundac¸a˜ o para a Ciˆencia e a Tecnologia (FCT/MCTES) under the project UIDB/EEA/50008/2020 and the Instituto de Telecomunicac¸o˜ es Fundac¸a˜ o para a Ciˆencia e a Tecnologia (project UID/EEA/50008/2013) under internal project QoEVIS Rafael Rodrigues
[email protected] 1
Instituto de Telecomunicac¸o˜ es and Universidade da Beira Interior, Covilh˜a, Portugal
2
Department of Multimedia and Information-Communication Technology, University of Zilina, Zilina, Slovakia
3
School of Computer Science, National University of Ireland, Galway, Republic of Ireland
Multimedia Tools and Applications
Keywords MPEG-DASH · QoE · Multimedia broadcasting · Mobile TV
1 Introduction Although a relatively recent development, the evolution and penetration of HTTP Adaptive Streaming (HAS) has been rapid over the last years. This has been driven by the very strong commercial case, as eviden
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