how to improve panning (reduce subtle stuttering)? + overscan for Panasonic ZT plasma - AVS Forum
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post #1 of 7 Old 05-04-2014, 01:59 PM - Thread Starter
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I notice that when a movie pans the room (i.e camera moves from left to right across the scene, there seems to be one or two very slight stops that are slightly disruptive from a smooth movement.. Is this something that can be improved with settings?

I have an i7 w/Radeon 7870. I have catalyst control center. I believe I have GPU scaling checked.

I have MB3 and JRiver. JRiver has RedOct at default setting.


Also:

I used CCC to overscan to fill the TV screen. I had to loose a couple letters off the left/right to fill the top/bottom. is there a better way to fit perfect?


all the above in minor but I'm trying to get the same PQ as my Oppo.
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post #2 of 7 Old 05-04-2014, 02:08 PM
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on the tv go to
-menu
-picture
-screen settings
-turn overscan off

that will help with that

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post #3 of 7 Old 05-04-2014, 03:56 PM
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Yes, overscan can be easily turned off on your tv (HD size 2 or something like that). Panning stuttering can be one of the two factors:
1. 24p material (films). You will have to force your PC output 24hz and configure your tv to enable 24p mode.
2. Compression artifacts. Panning scenes require a much higher bit rate. If there is not enough bit rate during compression, it will jump over son frames.

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post #4 of 7 Old 05-04-2014, 06:43 PM - Thread Starter
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Regarding OVERSCAN:

Looks like turning H Fill to 1 (vs 2), CCC to 0% OVerscan and TV to Overscan= off does the trick.


So I should change my PC output from 60Hz to 24Hz and the Panasonic ZT to 24p mode .....for film



I also noticed there are a couple low rez old concert clips from a DVD-Audio disc I ripped w/MakeMKV where the video fleshes off and on like a strobe light but the audio is normal using Media Browser 3 THeature. This does not happen when I play the same file w/JRiver. it's only a couple concert clips and the seem to be low rez. I am playing them on PC to PC Monitor
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post #5 of 7 Old 05-05-2014, 10:29 PM - Thread Starter
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OK....so it seems I have encountered JUDDER and am now experimenting with 24Hz out from PC and 24p 96Hz on Panasonic ZT. The slight Judder on "Giant" was improved but now on "Animal House" HDDVD rip I'm getting problems. When I watched the Jimi Hendrix bonus DVD bio with lot's of picture pans there was a lot of stuttering.

I noticed this was a big topic a few years ago... Is it less an issue now with smooth motion features and 24p native? Do I just need to learn more about the right settings?
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post #6 of 7 Old 05-06-2014, 04:43 AM
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Both HDDVD and DVD are natively interlaced, e.g. 1080i or 480i. 24p film needs to be telecined to store in those streams. So it is quite complicated to reverse that and produce correct 24p output. Most software players/drivers can't properly handle this.
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post #7 of 7 Old 05-06-2014, 09:36 AM
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