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lightshow
HDMI In
on Nov 3, 2007 at 4:42:58 am

Has anybody tried running a computer into the HDIO via the HDMI in at 1920 x 1080 60hz? I need to capture some software demos at a remote location, it would be slick if I could leave the Barco Image Pro HD at home.


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gary adcock
Re: HDMI In
on Nov 3, 2007 at 11:39:00 pm

[lightshow] "as anybody tried running a computer into the HDIO via the HDMI in at 1920 x 1080 60hz? I need to capture some software demos at a remote location, it would be slick if I could leave the Barco Image Pro HD at home. "

It is my understanding that the IoHD conforms to the Video specs under the HDMI 1.2v specs
I know of no computer that can output a true video signal- nor do I know of any computers that use HDMI as an output.

While It may be possible to use a DVI- HDMI cable - most of the HDMI capable output devices ( plasmas for example) want a 25-35 hrz signal.

A Kona card set to Macintosh Desktop does this all day long, however.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows

http://library.creativecow.net/articles/adcock_gary/AJAIOHD.php


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lightshow
Re: HDMI In
on Nov 5, 2007 at 10:38:21 pm

Thanks for the input Gary...

I've got a Kona system, unfortunately the Kona desktop out has no OpenGL graphics acceleration, so moving graphics are very jerky.

I use a lot of Gefen switchers and routers that have HDMI inputs, so I have tons of DVI to HDMI cables and all the demo systems here have HDMI adapters on them. I was hoping I could feed 1920x1080 at 59,94 or 60hz from the graphics workstation into the HDio with genlock to feed the HDio at remote locations and also into the HD switcher I use on live events.

I demoed the new Gefen DVI to HD-SDI scaler w/ genlock (EXT-DVI-2-HDSDISP), but it doesn't genlock reliably into my HD Switcher or into my Kona 3. They are sending a new unit, but I'm skeptical at this point.

The Barco Image Pro HD here doesn't look good at digital resolutions past 1600x1200, analog to HD-SDI is OK.

It looks like I'm going to spend bigger bucks on the Miranda dvi-ramp2, which many of the networks use when they want to capture high resolution DVI to HD-SDI signals. It's too bad because it doesn't do anything else, where as the HDio would give me tons of uses around here.

Mark



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Brian Holmes
Re: HDMI In
on Jun 25, 2008 at 8:40:53 am

Hi Mark,

I was wondering if you tried the DVI to HDMI cable and had any success, or did you go down the converter route?

I need to capture some footage from a computer via the ioHD, so any tips you have would be great.

Thank you,

Brian



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gary adcock
Re: HDMI In
on Jun 25, 2008 at 1:35:07 pm

[Brian Holmes] "I need to capture some footage from a computer via the ioHD,"

you cannot do that with an IoHD.
AJA devices will only accept SMPTE standard video signals- this is best done in Hardware using a device called a "1024" to convert computer display signal to actual Video.

or use a screen capture utility like camatasia or Snapz pro.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows
Inside look at the IoHD




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