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General control protocol?

2 replies [Last post]
Tue, 07/31/2007 - 03:14
Exjobb
User offline. Last seen 15 years 6 weeks ago. Offline
Joined: 30 Jul 2007

Hi

I am doing a project att my school and I am quite new to video and broadcasting. I am designing a studio setup that is ment to recive video feeds via ISDN that is later converted into SDI signals. The sound mixer and video switcher is controlled by a computer. The video mixer is controlled by the GVG 100 emulation protocol with an rs-422 interface and the sound mixer is controlled via MIDI.

What I am wondering is if there is a general control protocol that most switchers support and that can be used to control switchers via a computer?
If not what is the most used protocol and what is the most supported one?

Thanks for all help

//Erik

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Tue, 08/14/2007 - 09:20
#1
Exjobb
User offline. Last seen 15 years 6 weeks ago. Offline
Joined: 30 Jul 2007
Thanks that realy helped me out...
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Tue, 07/31/2007 - 20:18
#2
Brian Ford
User offline. Last seen 15 years 6 weeks ago. Offline
Joined: 19 Aug 2005
The GVG100 and GVG4000 are the two most common protocols for controlling a switcher. Almost every editor and switcher out there support this protocol. The 100 protocol is used mostly by smaller 1 ME switchers, while the 4000 protocol supports larger multi-ME ones. I think you can find the protocol on the Grass Valley site, under Kalypso documentation (look for the Kalypso protocol document).
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