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Perceived Audiovisual Quality of Low-Bitrate Multimedia Content

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2 Author(s)
Winkler, S. ; Nat. Univ. of Singapore ; Faller, C.

This paper studies the quality of multimedia content at very low bitrates. We carried out subjective experiments for assessing audiovisual, audio-only, and video-only quality. We selected content and encoding parameters that are typical of mobile applications. Our focus were the MPEG-4 AVC (a.k.a. H.264) and AAC coding standards. Based on these data, we first analyze the influence of video and audio coding parameters on quality. We investigate the optimal trade-off between bits allocated to audio and to video under global bitrate constraints. Finally, we explore models for the interactions between audio and video in terms of perceived audiovisual quality

Published in:

Multimedia, IEEE Transactions on  (Volume:8 ,  Issue: 5 )

Date of Publication:

Oct. 2006

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