Bridge Technologies Develop Unique PTS/PCR Checks and Alarms

New functionality facilitates far more nuanced sync detection

Building upon their market-leading understanding of broadcast, packet behaviour and timing, Bridge Technologies today announce the development of two new PTS/PCR time checks, which will provide even more in-depth analysis of misalignment and timing slippage, and allow for detection of hard-to-identify buffer timing issues, which – under traditional PTS/PCR comparison checks included in as part of the standard TR 101 290 checks  – might previously have been missed. These checks will be available as part of the new version 6.2 upgrade, available for all Bridge Technologies’ probes, include their flagship VB330 monitoring probe.

Whilst IP-based broadcast delivers innumerable benefits in terms of audio-visual delivery, the complexity of timing issues associated with TS can cause issues in terms of alignment, not only between audio and video, but also additional elements such as subtitles. These individual assets generally maintain their own PTS (Presentation timestamp) within each stream, which can then be referenced against the PCR (Program Clock Reference) to ensure alignment. Whilst clock slippage necessarily constitutes a part of most major monitoring systems by virtue of the mandatory PTS Repetition check that forms part of the ETSI TR 101 290 specification, its analysis generally only goes as far as indicating presence of slippage. As such, it lacks diagnostic or predictive power. In SFN-based terrestrial networks or in head-end satellite ingest systems particularly, conventional clock slippage monitoring methods may often prove insufficient.

The two new standards, developed by Bridge, aim to address this issue. Through a more sophisticated understanding of difference values and their interactions and patterns, alarm trigger thresholds can be configured to identify and alert engineers to time slippage skew in much harder-to-detect contexts (including subtitling), and thus predict eventual errors far more promptly and accurately.

Bridge Technologies will be demonstrating the potential of these two new clock checks and associated alarms at the upcoming NAB2024 show in Las Vegas (Booth C4939).

Speaking of the new functionality, Chairman Simen K. Frostad said: “This new PTS-PCR check and alarming system is unique to the Bridge suite of probes, and provides a much greater level of insight into the behaviour of the network and potential timing issues. Its development is a function of our unrivalled understanding of packet behaviour, developed over the course of 20 years as we have championed the case for IP adoption in the broadcast industry”.

More information about Bridge Technologies and its products is available at or by phone at +47 22 38 51 00.

About Bridge Technologies

Bridge Technologies creates advanced solutions for protecting service quality in the digital media and telecommunications industries. The company’s award-winning monitoring/analysis systems, intelligent switchers and virtual environments help deliver over 20,000 channels to more than 900 million subscribers in 94 countries. From head-end satellite ingress to microanalytics in the home network, Bridge Technologies offers patented innovation and true end-to-end transparency. A privately held company headquartered in Oslo, Norway, Bridge Technologies has worldwide sales and marketing operations through a global business partner network.

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Bridge Technologies Contact:

Simen K. Frostad


Tel: +47 22 38 51 00

Email: [email protected]

Press Contact:

Fiorenza Mella

XPresso Communications

Tel: +31 71 523 82 10

Email: [email protected]