Tuesday, September 28, 2010

Most important blank boxes from GVG

If you have had any audio or most video dubbed with us, the signals went through these very drab-looking beige boxes.

But don't be fooled; these are our routing switchers, which feed signals to and from my various VCRs and other sources to be recorded or monitored.

The beauty of the revolution in Digital Television makes a lot of equipment "obsolete".  No obsolescence here.  This relatively old (by a couple of decades) system is solid equipment
by Grass Valley Group.  They were a big manufacturer of broadcast TV equipment.


There are frames for Stereo Audio and 2 Video frames.  One video frames routes digital audio over coaxial cable INCLUDING Dolby Digital signals in 5.1 surround - or 3/2/LFE, and 2/0 stereo and uncompressed PCM (more on how this happens later).   Everything analog video and audio runs through this system as well for what the GVG 20-Ten was designed for.

But what is NOT obsolete; an ability to control it with a computer app.  Above, right is a screen-shot of a program I wrote to control it (control happens over ethernet to RS-232 adapter, plugged into the GVG "Serial Interface") allowing external computer control.  I can control the router wirelessly with this application on a wireless-enabled PC.   The last program that did THAT was probably in DOS!

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