[Avid-L2] Re: 24p on consumer LCD

Not sure if you are talking about my post -- but the issue is that DX hardware transmits 23.976, 24 and 29.97 profiles -- as progressive segmented frame (PsF).

The HDMI specification does not support PsF and, not surprisingly, monitors can't ingest it. While Avid has resolved this issue in DX hardware by converting 29.97PsF to 59.94i at its HDMI port -- 23.976 and 24 will currently not work over HDMI (although Avid has discussed a possible future hardware and/or software fix to address this).

Until then, assuming it ever happens, to solve this problem, you might consider the AJA Hi5-3G or the AJA HDP2. Both devices take HD-SDI and unify PsF profiles back to their temporally coherent progressive formats. The Hi5 has an HDMI output, more support for higher bit-depth signals and a bit more control granularity -- and the HDP2 operates a bit more automatically and has a DVI out (which of course can be converted to HDMI with an inexpensive adapter).

Be forewarned that I have seen slight judder in 23.976 PsF and 24 PsF projects on some high-end Panasonic consumer monitors that are known and documented to support 23.976p and 24p. I've worked with AJA for some time now to diagnose the source of that judder -- but have not reached a resolution.

Hope that helps.

--- In Avid-L2@yahoogroups.com, Lou Wirth <loutv@...> wrote:
>
> A while back someone mentioned a box to convert a 24p signal out of
> mojo dx to view in a prosumer LCD client monitor that will not take
> 24p. I thought I saved the info for future reference but can't find
> it. Anyone remember this or know of this box?
>
> thanks
> Lou
> Lou Wirth Productions
> 500Tamal Plaza, Suite 522
> Corte Madera, CA 94925
> www.louwirth.com
> 415-924-9411p
>

------------------------------------

Please donate to the Red Cross to help those in earthquake ravaged Haiti: http://www.redcross.org/en/donatemoney

Search the offical complete Avid-L archives at: http://archives.bengrosser.com/avid/

Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Avid-L2/

<*> Your email settings:
Individual Email | Traditional

<*> To change settings online go to:
http://groups.yahoo.com/group/Avid-L2/join
(Yahoo! ID required)

<*> To change settings via email:
Avid-L2-digest@yahoogroups.com
Avid-L2-fullfeatured@yahoogroups.com

<*> To unsubscribe from this group, send an email to:
Avid-L2-unsubscribe@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/