[mythtv-users] HDTV With Motion Not Smooth

Buechler, Mark R Mark_R_Buechler at bausch.com
Thu Dec 29 15:53:58 EST 2005


I'm seeing this more with SVN 8xxx than I did with 7607. I'm watching DVB
PBSHD and even slow motion isn't smooth but it looks more like to me frame
conversion (24fps -> 30fps) than anything else since it's jerky, then
smooth, then jerky again. I'll have to watch more HD to figure out if it's
that or something different.

 

- Mark. 

 

  _____  

From: Michael Haan [mailto:michael.haan at gmail.com] 
Sent: Thursday, December 29, 2005 3:29 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] HDTV With Motion Not Smooth

 

On 12/29/05, Michael T. Dean <mtdean at thirdcontact.com
<mailto:mtdean at thirdcontact.com> > wrote: 

Michael Haan wrote:

> So, Iknow it's somewhat subjective, but watching Lost, the motion
> seems to be fine.  I'm wondering if 720p vs 1080i might me the issue. 
> Does anyone know what Lost is broadcast in, vs My Name is Earl?

Lost is on ABC and ABC is 720p.  My Name is Earl is on NBC and NBC is 1080i.

TTBOMK, it can be broken down as:

ABC/Fox = 720p
CBS/NBC/PBS/UPN*/WB = 1080i

*at least those UPN stations owned by CBS (don't know about the other
UPN stations, but some may be in 720p)

Also, all cable/satellite premium networks (HBO, Showtime, Discovery HD, 
HDNet, HDNet Movies, INHD) use 1080i for movies/special programs
(because it's better for "not fast"-moving scenes).  ESPN HD (which,
like ABC, is owned by Disney) uses 720p (because it's better for
fast-moving scenes as exist in sports).  Strangely enough, NBA TV uses
1080i (maybe they have the players run slowly :).

Mike
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Ok, so maybe that is the reason for jerky motion playback on MNiE vs smooth
on Lost.  Now, if so, how do I fix it? 






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