Re: [Avid-L2] Monitoring Closed Caption in HD?

I realize you need an HD CC decoder (708). I was referring to consumer HD monitors which are required to have 708 decoders. HDMI is also required to carry the 708 signal. No question that 708 CC does not become 608 or line 21 on signal downconversion.

But I do realize that it is more complicated than that and I am not an engineer. I am not certain that the manner in which the 708 data is carried in SDI is the same as the way it is carried to the consumer (generally via multiplexed MPEG?) and then delivered to the consumer HD TV (HDMI and component?), nor that any given conversion from SDI to HDMI would convert/carry that data in a manner that can be decoded by a consumer TV.

However, I have seen CC from HDCAM on HD displays in a post facility so it clearly can be done. I can't swear is was not done via a separate decoder however. I can ask.

Cheers,
tod

On Mar 22, 2012, at 8:56 AM, John Kilgour wrote:

> All of the above won't work. I don't know the tech specs of it, but i just won't. We do CCing here in house (SD), and were looking into doing HD CCing, but being able to monitor the captions as they were going to tape was the main hurdle we encountered. You must have an HD CC decoder, which from this thread is obviously a very expensive option. (Well, expensive for us because we don't do that many HD CC jobs) The best option was the 17" JVC HD-SDI monitor with built-in HD CC decoding.
> On Mar 22, 2012, at 8:50 AM, Tod Hopkins wrote:
>
> > Which won't work and why not? CC won't pass through SDI to HDMI conversion? Won't carry on component?
> >
> > Cheers,
> > tod
> >
> > On Mar 21, 2012, at 9:53 PM, John Kilgour wrote:
> >
> >> won't work
> >>
> >> On Mar 21, 2012, at 5:41 PM, Tod Hopkins wrote:
> >>
> >>> Convert and run into any consumer monitor? They might play out Kona component. Not sure if Black magic boxes with pass on output. Never checked either one.
> >>>
> >>> I don't understand why pro monitors that cost thousands don't include a $10 decode chip. Irresponsible and annoying.
> >>>
> >>> Cheers,
> >>> tod
> >>>
> >>> On Mar 21, 2012, at 4:19 PM, millervideo_sf wrote:
> >>>
> >>>> I am trying to monitor closed caption files via HD-SDI. None of our HD monitors seem to do it. So what I am now doing is playing the show on FCP or AVID and digitizing that onto another system.(while laying off simultaneously to tape) When the system is finished digitizing, then I play that digitized movie back in QuickTime, which has no problem displaying the closed caption data. To check the tape, I have to digitize a piece of the tape to verify it has stuck to the tape. What a pain!
> >>>>
> >>>> This is so awkward! Does somebody make a black box that will allow one to playback a tape or look at a AJA card output and display HD closed captioning? I have searched the web and only find late generation monitors that state they handle EIA-608/708 DTV Closed Captioning via HD-SDI input.
> >>>>
> >>>> I am hoping not to have to buy a dedicated monitor just for this purpose. JVC makes a 17" one for about $3,000, but that seems excessive just for this one little purpose!
> >>>>
> >>>> Thanks
> >>>> Lee Miller
> >>>> Miller Video
> >>>> San Francisco
> >>>>
> >>>>
> >>>
> >>> Tod Hopkins
> >>> Hillmann & Carr Inc.
> >>> todhopkins@hillmanncarr.com
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> [Non-text portions of this message have been removed]
> >>>
> >>>
> >>>
> >>> ------------------------------------
> >>>
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> >>> Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>
> >>
> >
> > Tod Hopkins
> > Hillmann & Carr Inc.
> > todhopkins@hillmanncarr.com
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Search the official Complete Avid-L archives at: http://archives.bengrosser.com/avid/
> > Yahoo! Groups Links
> >
> >
> >
>
>

Tod Hopkins
Hillmann & Carr Inc.
todhopkins@hillmanncarr.com

[Non-text portions of this message have been removed]

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