UniTV Distributed TV Productions and VideoonDemand Services at
„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 May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Project Partners and Sponsor • RRZE/University of Erlangen • IRT/ Munich • BR • HFF • TUM • DFN May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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 May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Benefits • reduced production costs • material for universities / distant education • promotional benefits for the universities • educational television – Collegium Alexandrinum May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Production and Distribution • equipment – video, audio, editing • network • servers • accessibility and statistics May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Videoproduction • cameras – (semi-) professional – general orientation • codecs • scanconverter for transparencies – alternating with camera • monitors for quality control May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Audioproduction • wireless speaker microphones • codecs – embedded audio • audio for directing and monitoring May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Studio for editing at the IRT • online editing (MPEG-2 4: 2: 2) • offline editing w/trailer, headers • possibility for live broadcasting with BR May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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 May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Transmission Requirements • cameras – 3 x 50 Mbps CBR, VBRrt ATM • camera for monitoring/directing – 1 x 15 Mbps CBR, VBRrt ATM • audio signals May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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) May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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-Vo. D via IP/Mbone – 1 Mbps H. 261 May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Server • server capacity at the IRT for editing – 3 camera signals for editing (MPEG-2 4: 2: 2) with audio signals (3 hrs) – 100 Giga. Byte per class • server at the RRZE for Video-on-Demand – 1. 2 Giga. Byte per class (MPEG-2 4: 2: 0 broadcasting format) – 400 Mega. Byte per class (MPEG-1) May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Distribution and Access • www. uni-tv. net May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Statistics • March 2000 – 2939 hits – 2596 files – 669 pageviews – 704 sessions – 61436840 Kbytes sent May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
Problems and Solutions • problems with equipment – codecs, camera settings, back-up team • problems concerning the presentation – subject matters – speakers and their preferences – pointers May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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 May 24 th, 2000 Susanne. Naegele-Jackson@rrze. uni-erlangen. de
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