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„Uni-TV“

„Uni-TV“. Distributed TV Productions and Video-on-Demand Services at Universities. Outline. introduction distributed production in studio quality distribution and access problems and experiences focus and future outlook. Project Partners and Sponsor. RRZE/University of Erlangen

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„Uni-TV“

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  1. „Uni-TV“ Distributed TV Productions and Video-on-Demand Services at Universities

  2. Outline • introduction • distributed production in studio quality • distribution and access • problems and experiences • focus and future outlook Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  3. Project Partners and Sponsor • RRZE/University of Erlangen • IRT/ Munich • BR • HFF • TUM • DFN Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  4. Concept • transmissions from the auditorium (Univ. Erlangen, Univ. Munich) to the IRT/Munich • online editing at the studio/IRT according to the script provided by the HFF • retransmission of the edited material to the auditorium for control and recording • distribution over the internet/intranet • offline editing for television broadcasting via satellite and cable Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  5. Benefits • reduced production costs • material for universities / distant education • promotional benefits for the universities • educational television • Collegium Alexandrinum Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  6. Production and Distribution • equipment • video, audio, editing • network • servers • accessibility and statistics Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  7. Videoproduction • cameras • (semi-) professional • general orientation • codecs • scanconverter for transparencies • alternating with camera • monitors for quality control Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  8. Audioproduction • wireless speaker microphones • codecs • embedded audio • audio for directing and monitoring Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  9. Studio for editing at the IRT • online editing (MPEG-2 4:2:2) • offline editing w/trailer, headers • possibility for live broadcasting with BR Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  10. Network • Gigabit Testbed South/Berlin • 3 x 2.5 Gbps ATM • 3 channels • 1 fiber pair • University network in Erlangen • city network (M‘net) in Munich Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  11. Transmission Requirements • cameras • 3 x 50 Mbps CBR, VBRrt ATM • camera for monitoring/directing • 1 x 15 Mbps CBR, VBRrt ATM • audio signals Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  12. Distribution • television (cable and satellite (Astra)) • fixed 30-minute time slot on the educational channel „BR-a“ as part of the series „Alpha Campus“ • internet/intranet • individual download/streaming (MPEG-1, MPEG-2 4:2:0) • near-Video-On-Demand via IP/Mbone reservation (H.261) Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  13. Bandwidth Requirements Distribution • product after online-editing • 1 x 50 Mbps • product over the internet/intranet • 15 Mbps MPEG-2 4:2:0 • 2 Mbps MPEG-1 • product Near-VoD via IP/Mbone • 1 Mbps H.261 Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  14. Server • server capacity at the IRT for editing • 3 camera signals for editing (MPEG-2 4:2:2) with audio signals (3 hrs) • 100 GigaByte per class • server at the RRZE for Video-on-Demand • 1.2 GigaByte per class (MPEG-2 4:2:0 broadcasting format) • 400 MegaByte per class (MPEG-1) Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  15. Distribution and Access • www.uni-tv.net Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  16. Statistics • March 2000 • 2939 hits • 2596 files • 669 pageviews • 704 sessions • 61436840 Kbytes sent Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  17. Problems and Solutions • problems with equipment • codecs, camera settings, back-up team • problems concerning the presentation • subject matters • speakers and their preferences • pointers Susanne.Naegele-Jackson@rrze.uni-erlangen.de

  18. Current Focus and Future Outlook • improved quality / fine-tuning • improved accessibility/distribution • indirect camera remote control • VBRrt ATM PVCs • latency of codecs • regular classes for credits • questions from the audience Susanne.Naegele-Jackson@rrze.uni-erlangen.de

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