University of Twente Student Theses


Playout delay of TV broadcasting

Kooij, W.J. (2014) Playout delay of TV broadcasting.

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Abstract:The distribution of content in a television broadcast chain is not a simple linear process. Content broadcasted to different locations is received at different moments. This is causing synchronization problems. In traditional television settings where the TV was merely a device to present content, this might not be a very large issue. However, with the introduction of new media and increasingly digital interaction between people over the internet, this becoming a problem. The TV landscape is changing, the TV is becoming more than just a device to watch content. Interaction with content on the television or other TV users is becoming part of the TV experience. Examples of these directions are smart TVs, second screen apps, social TV and undiscovered new directions of telemedia. To accommodate for these changes, synchronizing the content on different TVs is important. In this study, the TV content distribution chain is examined to discover where delays are introduced in the distribution process. Next, an examination of how the displaying of TV content can be synchronized is presented. Moreover, a mobile, easy-to-use measurement system was created to measure playout delay differences between different TV setups using a technique called audio fingerprinting. This measurement system is tested for accuracy and precision. And last but not least, it is used to measure playout differences (relative to a reference) between different TV setups.
Item Type:Essay (Master)
TNO, Delft, the Netherlands
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Internet Science and Technology MSc (60032)
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