PS3 Blu-ray playback framerate issue

[ShaidarHaran]

So I have an 80GB PS3 and a few Br movies, which look fantastic on my 1080P 42" LCD, but I can distinguish a skipping of frames throughout the entirety of playback, thus making the movie appear to stutter at times. I'm wondering if there's an option somewhere in the PS3's setup that I can change to eliminate this, or if it's something I need to change on my tv.

I imagine the issue is that of a conversion from 24fps to 60fps.

Edit: output via HDMI straight from PS3 to TV - tv specs

 

[Malo]

Have you set you tv to 3:2 pulldown? Might be called "Film mode" or similar.

 

[ShaidarHaran]

Have you set you tv to 3:2 pulldown? Might be called "Film mode" or similar.

I'll check for that, I had been working under the assumption that was the problem, but would prefer the PS3 to do that job so I don't have to switch to 3:2 when I want to watch a movie, and then back to "normal" mode for TV/games.

Thanks.

 

[ShaidarHaran]

Anyone know if the PS3 has an option for this, or am I stuck using my TV for 3:2 pulldown?

 

[Zaphod]

Going by the specs it would appear that your TV can accept a 24Hz signal, but it is unclear whether it can display it with a 3:3 or 5:5 pulldown pattern or perform inverse telecline.

If it can't, try this setting on the PS3: Off, your TV will do 3:2 pulldown; On, it will be done by your TV. Depending on the picture processing in your TV there may or may not be a difference between the two.

Now for the unclear part: The listed specs doesn't mention IVTC, 5:5 pulldown, or other judder-reducing tricks, but then manuas list this entry: "120 Hz Clear LCD (if present) [...] results in superior sharpness of motion reproduction" which sounds like (may or may not be) inverse telecline and/or alternate pulldown patterns. If you have this option, turning it on will probably reduce the judder, but on some sets it can introduce other artifacts.

 

[ShaidarHaran]

Thanks for the information. I'm a bit confused by this part though:

If it can't, try this setting on the PS3: Off, your TV will do 3:2 pulldown; On, it will be done by your TV. Depending on the picture processing in your TV there may or may not be a difference between the two.

The way you describe this it sounds like on and off do the same thing. I currently have that set to automatic. I guess I should just experiment with it when I get home from work tonight, and see if setting it to either on or off have the desired effect. If not, then I guess I'll just have to use the 3:2 pulldown option in my TV menu.

Thanks Malo and Zaphod for your help.

 

[Mize]

Shaidar, it says on the leaflet/specs that your TV has a 1080p/24 Hz setting. You should get the absolute best framerates (eliminate "judder" as it's called) by setting the PS3 blu-ray output to 24Hz.

Yes your TV has 3:2 pulldown, but it won't look as smooth and it doesn't have a 120Hz display mode.

 

[Zaphod]

The way you describe this it sounds like on and off do the same thing. I currently have that set to automatic.

If you don't have the mentioned 120Hz setting, yes probably. The difference then would only be whether it's the PS3 or the TV that adds the repeated frames in the 3:2 (actually 2:3) sequence to convert the 24Hz source rate to the 60Hz display rate. However, not all sets are alike so eve though theory say they'll be the same there could be differences (depending on the video processing in your TV).

It might even do better (well, all is relative) at 60i since some sets (depending on settings) provide better motion @ 60i than 60p (inserting blended frames at the cost of physical resolution). You might also try to turn on/off 'Perfect Pixel HD', 'Active control' and/or other image processing settings as there's no guarantee that these always get things right or produce the optimal result on any given source.

The advantage if you do have the 120Hz setting is that 12, 15, 20, 24 30, 40, and 60Hz framerates can all (in theory) be displayed without motion artifacts as they're even multiples of the display rate. You should then set the PS3 24Hz setting to 'On'.

 

[ShaidarHaran]

I don't believe this is a 120hz LCD, otherwise it should be perfectly displaying 24hz already since 24 goes into 120 evenly as you mentioned. Also, 60hz is the highest mentioned in the spec list.

 

[Mize]

But why mess with any of that Zaphod? He has 1080p modes at 24, 25, 30, 50 and 60 Hz. Why not just set PS3 BR to 24 Hz and forget the rest?

 

[ShaidarHaran]

But why mess with any of that Zaphod? He has 1080p modes at 24, 25, 30, 50 and 60 Hz. Why not just set PS3 BR to 24 Hz and forget the rest?

So if I force the aforementioned setting on the PS3 to on the tv should automatically do 24hz->60hz correction for me?

 

[Zaphod]

But why mess with any of that Zaphod? He has 1080p modes at 24, 25, 30, 50 and 60 Hz. Why not just set PS3 BR to 24 Hz and forget the rest?

Because the whole thread is about judder. His TV can accept a 24p input, but that doesn't mean it can display at that rate. In fact, i know of no TV that can. Thus, if it's not a 120Hz LCD (and they're just reusing the same manual for similar yet different models -- lazy bastards), the only way to figure out what combination gives the least motion artifacts is to experiment.

 

[Mize]

So if I force the aforementioned setting on the PS3 to on the tv should automatically do 24hz->60hz correction for me?

No, your TV is actually so kick-ass that it has a 24Hz 1080p mode (very few do). There will be no 24->60Hz correction, you'll simply be watching the video the way it was filmed. When you play a video game your tv will flicker and switch to 60Hz and when it sees the 24 Hz from the PS3 it will auto-sync to that.

 

[Mize]

Because the whole thread is about judder. His TV can accept a 24p input, but that doesn't mean it can display at that rate. In fact, i know of no TV that can.

Uh...The specs state a 24Hz diplay refresh rate. This is under display resolution modes, not inputs.

Also, many newer models have 24Hz display - such as most of the pioneer models.

 

[Mize]

Just dug up on avsforums too...the set gets some dings for picture quality but those are legitimate display refresh rates - it does do 24 fps.

 

[Zaphod]

Uh...The specs state a 24Hz diplay refresh rate. This is under display resolution modes, not inputs.

No, it's under 'Video formats'. I'll bet almost anything it doesn't display at 24Hz. It would be a flickery mess.

Also, many newer models have 24Hz display - such as most of the pioneer models.

The Pioneers in question do 3:3 pulldown on 24Hz sources and display at 72Hz.

 

[ShaidarHaran]

Ok. How do I force 24hz display while watching Blu-ray movies?

 

[Mize]

Ok. How do I force 24hz display while watching Blu-ray movies?

There's a setting under blu-ray playback...I'm not at home but I'll find it later if you have trouble.

 

[Zaphod]

Ok. How do I force 24hz display while watching Blu-ray movies?

On the PS3? I linked the setting in the manual above. There's nothing to force on the TV if Mize is right. I'm still pretty convinced that feeding your TV a 24Hz signal is likely to yield a situation with the TV applying 3:2 pulldown giving you a 60Hz display rate, though.

 

[ShaidarHaran]

Argh. I understand how to force 24hz playback on the PS3 (thanks to Zaphod).

What I'm asking is how do I make sure my tv displays at this refresh rate? Will it do so automatically, or do I need to manually apply 3:2 pulldown?