“Open multimedia tool 2014” ends – Results

The “Open Multimedia Tools 2014” project came to an end at the end of 2014. A summary of activities and achievements is presented  in this post.

  • High quality streaming / Musical collaboration: This activity has been looking into state-of-the-art tools for “near natural” real-time audio-visual online collaboration. It  has turned out to be the most fruitful activity in the project. A collection of tools have been investigated. They have been applied in several scientific experiments where the level of quality required to reach “near natural” quality has been investigated. Milestone for the activity are the following
    • Conducting of a choir over the internet successfully achieved [1]
    • Msc thesis completed titled “Telepresence Quality” [2]
    • Phase I of establishing infrastructure for musical collaboration completed [3]
    • A demo performance utilizing musical-collaboration infrastructure was given [4]
  • Search in multimedia: This activity has continued previous work on a experimental search engine for multimedia content. A new renovated and enhanced version of the edusearch.uninett.no test service was produced and to some extent operational. Unfortunately due to security issues with the server hosting the service, it is currently off-line.
  • Streaming infrastructure: A test service for live video streaming base on the Wowza streaming server software has been kept operational until end of 2014.  The service was decided not to be further developed as UNINETT’s medaisite-based lecture recording service also supports live streaming and will support input from general IP media devices in the near future. Two Msc specialisation projects from NTNU investigated investigated multimedia distribution aspects in UNINETT, one addressed the potential and limits of more active use of multicast [5] while the other analysed the potential of introducing CDN nodes in UNINETT [6]. (Note: The reports are from student projects, hence quality is not guaranteed.) A Msc thesis on multicast challenges in wifi access networks was also completed [7].
  • Advanced audio: One Msc specialisation project address the potential for doing audio processing in to-days browsers [8]. Promising results showed that audio sources in a stereo audio signal could be detected and filtered, i.e. sound sources in a “raw” lecture recording could hence potentially be streamed unprocessed to a browser where processing could be tuned by the user and his needs.
  • Research applications: During the project UNINETT participated in consortia for several multimedia-related application to the EU FP7. Unfortunately, none of the applications were approved.

Some of the activities in  “Open Multimedia Tools 2014” will be continued in the upcoming “Multimedia Infrastructure 2015” project.

 References

  1. Conducting over IP
  2. Telepresence Quality“, Daniel Puig Conca, Msc thesis, NTNU, 10. jun 2012.
  3. Nettmusikk web-site
  4. Thora“, Dokkhuset Scene, Dec 09, 2015
  5. “Multicast capacity estimated for Lecture IP TV in UNINETT”, Sepideh Kanani, Msc specialization project, NTNU, July 2013.
  6. “Content Delivery Networks in UNINETT”, Haakon Løchen Nore, Msc specialization project, NTNU, Dec 2013.
  7. An investigation of large scale challenges with live video streaming over Wi-Fi access networks“, Sepideh Kanani, Msc thesis, May 2014.
  8. “Audio processing in HTML5”, Jonathan Klapel, Msc specialization project, NTNU, Dec 2013.

 

 

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