IP-Distribution – IRT Lab

Streaming on Rails — Episode 01: Improving VoD for Train Passengers

Christoph Ziegler — Tue, 26 May 2020 14:14:01 +0000

In the EU-funded R&D project 5G-VICTORI we aim to improve the availability and quality of video-on-demand (VoD) streaming services (such as “Mediathek”) for train passengers. In a series of articles we want to keep you informed about our activities in this area. In this article we explain the technical approaches we are investigating. How can ...

OpenCDN – Player-based IP distribution from alternative servers

Martin Schmalohr — Wed, 11 Sep 2019 07:56:26 +0000

For the growing popularity of video streaming in OTT services, multi-sourced caching solutions can reduce costs, improve performance and avoid vendor lock-in. Data traffic of ARD and ZDF for streaming audio and video content has grown rapidly during the last years. This trend will enforce with the shift from classic linear TV to VoD streaming ...

Interoperability in all IP productions using SMPTE ST 2110

Franz Baumann — Mon, 27 May 2019 12:06:33 +0000

IP-based broadcast production has long been a hype. Now it is becoming a reality with more and more equipment on the market. But users need interoperable standardized products they can trust. So IRT’s goal is to support the broadcasting market to develop and offer such IP-based products. The technologies required for this, e.g. SMPTE ST ...

HRADIO: Online demo of transparent DAB(+) distribution over IP

Alexander Erk — Thu, 21 Feb 2019 13:57:19 +0000

Radio is going digital – slowly but steadily. Currently, this happens in two different worlds: One is DAB(+) and the other is IP streaming. DAB(+) is a sophisticated and efficient broadcast standard with many clearly specified add-on functionalities – but it does not support personalisation of its services as is. In contrast, IP-based radio services ...

Argos | Measuring the video stream quality

Sebastian Siepe — Tue, 17 Jul 2018 07:29:27 +0000

Users of media platforms are used to watch high quality video content over the internet, since many media platforms emerged that deliver high quality video content anytime, anywhere and on any device with intuitive applications. These platforms, like YouTube, Netlifx or Facebook have set the standard of video streaming very high. And this high standard ...

IRT Teststreams on YouTube

Martin Schmalohr — Tue, 25 Apr 2017 11:38:39 +0000

This is a quick test, if the YouTube Cloud Transcoder supports MXF-Contribution Quality for high quality uploads as it is used within ARD and ZDF. For a broadcaster it can be desirable to upload their productions in high quality to cloud-based video-portals like YouTube without any further recompression to maintain quality and save processing costs. ...

AV-Portal Streaming Testcases

Martin Schmalohr — Wed, 25 Jan 2017 09:39:26 +0000

IRT opened an extensive repository of differently encoded Audio- and Videostreams for PC, Smartphones, Tablets and HbbTV-Devices. Launch the Testportal http://avtest.irt.de Various test cases are presented in a user interface as progressive download and adaptiv for MPEG-DASH, Apple HLS and Adobe HDS in multiple encodings (H.264, H.265, HE/AAC, E/AC3), container formats (MP4, MPEG-TS) and resolutions ...