Media Synchronization Quality of Reactive Control Schemes

Yutaka ISHIBASHI  Shuji TASAKA  Hiroki OGAWA  

IEICE TRANSACTIONS on Communications   Vol.E86-B    No.10    pp.3103-3113
Publication Date: 2003/10/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Multimedia Systems
media synchronization,  reactive control,  quality comparison,  objective assessment,  subjective assessment,  

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This paper assesses the media synchronization quality of recovery control schemes from asynchrony, which are referred to as reactive control schemes here, in terms of objective and subjective measures. We deal with four reactive control techniques: skipping, discarding, shortening and extension of output duration, and virtual-time contraction and expansion. We have carried out subjective and objective assessment of the media synchronization quality of nine schemes which consist of combinations of the four techniques. The paper makes a comparison of media synchronization quality among the schemes. It also clarifies the relations between the two kinds of quality measures.