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Mix STOPS mid way

6 replies [Last post]
Sun, 09/10/2006 - 20:49
Mike Bramley
User offline. Last seen 14 years 25 weeks ago. Offline
Joined: 5 Sep 2005

What was done....
Manual mix (with levers) from Profile (on Prog bus) to Cam 2 (on Preset bus). When levers hit end stop, preset Cam 3 and manual mix to Cam 3.

What actually happened.....
Half way through the first mix, the mix freezes (leaving a half mix of profile and Cam2). The levers continue to endstop but nothing happens. When Cam 3 was preset, Kalypso CUTS to Cam 3. The next mix of the levers mixes back to the Profile.

What I think happened.......
Half way through the first mix, the panel lost comms with the frame or the network got very busy. Therefore the mix stopped half way. When the panel and frame started talking to each other again, Cam 3 had been selected on the Preset bus so the Kalypso IMMEDIATELY completed the mix transition to the source on preset which was now Cam3. Hence, it cut to Cam 3 and the busses flip floped putting the Profile on Preset. The next mix was therefore back to the Profile.

This all happened live to air at the head of our "Evening 7PM News".

This Kalypso operates in "Multi Suite Mode". When we showed the engineers what had happened they immediately asked if anything had been done in the other studio at the same time, possibly tying up the Kalypso network or frame. Needless to say, we can't reproduce the fault but we do have it on tape.

Has anyone had a similar experience?

Mike Bramley.

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Wed, 09/20/2006 - 20:17
#1
brad fisher
User offline. Last seen 14 years 25 weeks ago. Offline
Joined: 20 Aug 2005
For those of you having this problem recurring ... Have you tried using Multi-Suite mode, and acquiring a different physical M/E board for the problem M/E? (ie, use the M/E 1 hardware as Pgm/Pst and vice versa). This might narrow the problem down to being frame problems or panel problems. If the problem moves to the other M/E, then the card would most likely be at fault. If not, then the cause could be either the physical fader on the panel, or it might possibly be a timing problem with the source. As another diagnostic test, does the problem also happen regardless of which transition type is selected? (ie, Mix, Wipe-1, Wipe-2). If it only happens with one type, then it's clearly not the fader. brad
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Wed, 09/20/2006 - 09:38
#2
Joerg Marx
User offline. Last seen 14 years 25 weeks ago. Offline
Joined: 6 Mar 2006
[url]http://editsuite.com/new/viewtopic.php?id=245[/url]
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Fri, 09/15/2006 - 20:03
#3
greg
User offline. Last seen 9 years 49 weeks ago. Offline
Joined: 22 Aug 2005
This issue happened to us a few weeks ago on M/E 3. I was able to duplicate the problem that night but the next day the engineers couldn't duplicate it and I also couldn't duplicate it. We don't know if it was traffic on the LAN or what but it hasn't happened since.
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Tue, 09/12/2006 - 18:17
#4
Mike Bramley
User offline. Last seen 14 years 25 weeks ago. Offline
Joined: 5 Sep 2005
I think the Kalypso is on its own dedicted LAN. I will check it out next week when I'm back in the studio. The other studio (suite) connected to the Kalypso frame does not have a Kalypso control panel. All switching and e-mem recall is controlled from a computer GUI and the Kalypso menu runs on another PC. This small studio is operated by one operator (plus producer and news reader) and puts out live news bulletins around the clock. The control system was designed in house so I will speak to the engineer who built it and see if there is any possibility that he might be "swarming" the kalypso network however the system has been in operating OK for several years.
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Mon, 09/11/2006 - 20:06
#5
Bob Ennis
User offline. Last seen 4 years 37 weeks ago. Offline
Joined: 24 Aug 2005
I have seen this type of issue occur in 2 places - in the GV lab- normally caused by a network "swarm" where there's so much traffic on the LAN that messages collide & get dropped by the switcher. But at GV they had dozens of control points on the switcher LAN - a swarm usually occurred when one of the Engineer's computers (connected to the LAN) went haywire & started broadcasting lots & lots of messages over the LAN. The other instance was at CBS - when they 1st installed their Kalypso,it was headed by the IT department. The Kalypso was put on the main LAN system, along with everyone else's computers, printers, etc. When someone in accounting started sending vacation pictures via e-mail, the whole network ground to a crawl. Taking the switcher off of this company-wide LAN & putting it on its own LAN (where it belongs) solved this problem. Having the switcher in multi-suites mode shouldn't cause collisions..at least I don't remember seeing that during testing - there may be other "things" on your LAN - try sniffing the system before anything else & get rid of anything that shouldn't be on the dedicated switcher network.

Bob Ennis

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Mon, 09/11/2006 - 19:49
#6
mtiffee
User offline. Last seen 14 years 17 weeks ago. Offline
Joined: 19 Aug 2005
Don't you love it when all you can do is turn to the producer and director and shrug? I hate things like that, even when it's not your fault it still happened on your watch.
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