Hi list,
I guess after 3 weeks with Matterhorn 1.3 in production here in
Osnabrück it is time to give a short feedback about our experiences.
And I must say my feedback is extreme positive. We record 19 lectures a
week 90 minutes each with 7 CAs. We have recorded a few less than 60
lectures yet and not lost any recording yet and the problems that we
encountered are from my point of view minor and in many cases not really
matterhorn related. The confidence monitoring in the CA is currently
very helpful to really make sure that everything works as expected
during the recording. We had no reason to restart the Matterhorn servers
or a capture agent yet (with one exception, see problem 2.)
The problems we encountered:
1. VGA is scrumbled: This is a well know issue when the resolution of
the VGA is changed while the PC is already connected to a recording
VGA2USB device. One solution is to reconnect the VGA then. But we
started to include the StarTech VGA-scalers that are recommended for the
Capture Agents anyway.
2. VGA video gets stuck for a few seconds/minutes but it recovers after
a while. I created a ticket for this
http://opencast.jira.com/browse/MH-8799. But in general I suppose that I
simply need a faster CPU. But to make sure it is not based on some
artifacts I restarted the PC.
3. Audio not loud enough. After a hardware problem (damaged power
supply) the volume on the amplifiers in the room was set too low. This
was not in any way Matterhorn related.
4. On one CA the lecturer video was b/w. This was caused by a broken
s-video-cable.
5. In one of over 60 recordings we needed to start the recording
manually, for an unknown reason. The scheduled recording aborted after a
few seconds. We noticed this with the CM and started the recording manually.
6. If we edit the metadata in the trim hold state, the date gets lost.
This is a known issue too.
I wanted to use MP4/H.264 for the streaming only, as you might have seen
in my other mail some weeks ago. In the meantime we decided to use h.264
only for the higher qualities. For low and medium quality we switched
back to FLV as this works much better for us and is better supported by
the Matterhorn 2go app.
This is by far the best semester start that we ever had. I hope that
others have made similar good experience.
Rüdiger
--
________________________________________________
Rüdiger Rolf, M.A.
Universität Osnabrück - Zentrum virtUOS
Heger-Tor-Wall 12, 49069 Osnabrück
Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
E-Mail: [email protected]
Internet: www.virtuos.uni-osnabrueck.de
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