23.976p is output at 24p

[Spollie]

Yesterday I received my long awaited Mede8er MED1000X3D. I'm very pleased with it, however I have a problem with it. Most of the content I play is encoded at 23.976 fps, but this content is played at 24 fps by the Mede8er. This results in frameskips every now and then, which are pretty annoying to watch. In the options menu I have enabled both 24p and Auto Frame Rate. I have played around with the various options to no avail. I'm using the 1.0.3 beta firmware from August 30th and I'm using the Mede8er with a Pioneer VSX-LX53 receiver and an Epson EH-TW6000W projector.

Can anyone help?

[Maasbommel]

Did some digging on 24p and this projector and found this review:
http://www.digitalversus.com/video-projector/epson-eh-tw6000w-p12334/test.html

There’s no motion interpolation here and this has, like lens-shift, no doubt been sacrificed to keep pricing as low as possible. You’ll therefore have to accept some jumpiness with 24p and 25p films.
 
I personally have smooth play on both 24fps and 23.976 fps movies on both my Samsung TVs.

[Spollie]

Did some digging on 24p and this projector and found this review:
http://www.digitalversus.com/video-projector/epson-eh-tw6000w-p12334/test.html

There’s no motion interpolation here and this has, like lens-shift, no doubt been sacrificed to keep pricing as low as possible. You’ll therefore have to accept some jumpiness with 24p and 25p films.
 
I personally have smooth play on both 24fps and 23.976 fps movies on both my Samsung TVs.

I don't think it's a limitation of the projector, I've succesfully played 23.976p material with my HTPC, which I sold recently to buy the Mede8er. The motion interpolation refers to techniques that 'make up' frames in between the 24 frames a second that you get from the source, to make the video appear smoother.

[Maasbommel]

Spollie,

What movies did you try to see this effect?

[Spollie]

Yesterday I noticed it very well when I was watching Breaking.Bad.S05E07.Say.My.Name.720p.WEB-DL.DD5.1.H.264-CtrlHD. However I think I have this issue on every movie / TV episode I watch. They're all encoded at 23.976 fps.

[jer1956]

You don't say what software player you  used on the HTPC.  Many use techniuqes at the code level which if played only with the hardware codec in the graphics card would  have issues even on a PC.

24hz is not user selectable...what default refresh rate are you using to trigger 24hz?


Also why would you take a video broadcast and transcode to 24 or 23.976? That has to create problems which something like VLC will  mask as it's been designed to solve issues created by bad ripping.

Try using TSMuxer to convert to bluray packaging. That will then play using the iso player..not the mkv unwrapper.

[Spollie]

You don't say what software player you  used on the HTPC.  Many use techniuqes at the code level which if played only with the hardware codec in the graphics card would  have issues even on a PC.

24hz is not user selectable...what default refresh rate are you using to trigger 24hz?


Also why would you take a video broadcast and transcode to 24 or 23.976? That has to create problems which something like VLC will  mask as it's been designed to solve issues created by bad ripping.

Try using TSMuxer to convert to bluray packaging. That will then play using the iso player..not the mkv unwrapper.

Hmm.. I might have to do some more research on this. I tried some bluray ISO's and as far as I can tell they play without any judder. I will download the test files that someone mentioned in the other thread and report back here.

[Spollie]

I did some more testing today and I'm definitely experiencing judder on 23.976p material. I watched the moving bars videos, the 24p version was fine, no judder at all. But with the 23.976p version I experienced a slight hickup every ~40 seconds. I then watched some movies and TV series and they all have the hickup, both MKV's and Bluray ISO's. My projector shows it's projecting at 24.00 Hz, in both situations.

[hdmkv]

I don't notice as much judder, but the 1000X3D does display 3D 23.976 content at 23.99 (which isn't fine), while 2D 23.976 at 23.98 (which is fine). I posted results of motion bars tests in my review.

[Spollie]

I don't notice as much judder, but the 1000X3D does display 3D 23.976 content at 23.99 (which isn't fine), while 2D 23.976 at 23.98 (which is fine). I posted results of motion bars tests in my review.

Hmm... maybe my receiver is causing the problem then. I'm going to try to bypass the Pioneer receiver entirely to see what happens.

[hdmkv]

Fact that it's doing 3D film-based content at 23.99 will cause a frame skip (every 42 seconds). Whether it's always noticeable is another matter .

[Spollie]

I did some more testing today, I connected the Mede8er directly to my projector, bypassing my receiver entirely. Yet, it still plays  23.976p content at 24p. I'm pretty sure it's not my Epson projector screwing it up, because in the maintenance menu it shows that the input signal is 23.99 Hz. I'm pretty disappointed by this, because I sold my HTPC to have a solid, trouble-free experience, which I'm not getting at all... 

[TheKillingBean]

Ok to bad to hear. I first used a Popcorn player, but it died on my. Then I bought a AC Ryan HD player, but was very disappointed with it (slow, bad firmware updates). I wanted a new player because the AC Ryan also has problems with the 23.976p files (the Popcorn did not have any problems). I was hoping the MED1000X3D would solve this problem, but looks like this player also has problems with the 23.976p. Is there going to be a fix? I rather not buy the player if it has this problem.

[jer1956]

It's an issue that got raised with the x1 (1073) a lot, but not the x2 (1185).  It also devides users..becuase  some say it's intolerable..and others can't see anthing to complain about.  Now we are seeing x3 issues reported from projectore users which no tv user has reported so  far.  That includes the 23.976 issue which seemed to have vanished with the x2.

Now projectors are notorious for poor handshaking. So this could be a chicken or the egg situation. 24hz is being used becuase the x3 and the projector can't agree that 23.976 is supported. The projector may expect the  x3 to output "as is", and the projector will switch to what is required. The x3 may work on the basis it must have it confirmed 23.976 is supported, otherwise 24hz is used.

[hdmkv]

This isn't a HDMI hand-shaking issue. It affects other RTD1186 players like HiMedia HD900B, Micca EP600G2, etc. The framerate is correctly being output for 2D 23.976 (most movies) at 23.98, just not for 3D.