Over 10 billion hours of video are watched online every month. Together with high definition television broadcasting and the rise in high quality video on demand, this makes quality assessment a key task in the global multimedia market. Automating quality checking is currently based on finding major audiovisual artefacts. The Monitoring Of Audio Visual quality by key Indicators (MOAVI) subgroup of the Video Quality Experts Group (VQEG) is an open collaborative project for developing No-Reference models for monitoring audiovisual service quality. The purpose of this paper is to report on the development of the audiovisual part of this project, which includes the detection of muting, clipping and lip synchronization (also known as lip sync) artefacts.

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