PLEX ON ROKU 480P
PLEX ON ROKU 1080P
PLEX ON ROKU FULL
PLEX ON ROKU TV

Its as though the system is lowering the dialogue track to even out the volume, and now music and ambient sounds are covering it. During sequences with music or surround effects, suddenly everything is the same volume, subdued, including the dialogue, which is now somehow overshadowed by all other sounds and music. During quiet moments, dialogue is clear and loud.

PLEX ON ROKU TV

Remember in the 90s when the TV show was normal volume but the TV commercial would suddenly jump up in volume? Remember when TVs started having the feature to try to flatten out the audio volume? I feel like my system is doing that. With my surround system, I am now learning about the different channels and their purpose. On my old TV, with just stereo speakers, I became aware that some video files lacked plain stereo channel audio, and therefore the dialogue was essentially silent, as no center channel physically existed on my TV. This is my first surround system ever, and I am still learning. Other issues are taking place as well, particularly with the audio. I have only owned the TV about four months, and the Plex app audio sync issue (before I got the Roku) and now the screen jitter issue were not present until the last few weeks. I might add that this is a new phenomenon. 1080 content looks fine, but those fancy 11 hour 'underwater 4k' music video things have the effect to a very small degree. Youtube 4k streams from the Roku do not have this effect as badly - it is present, but only just enough to barely notice. I have not yet tried plugging the Roku directly into the TV, however my AVR acts as the HDMI hub, with all my devices plugging into it, and then one cable connects to my TV. I am using the HDMI cable that came with the Roku Ultra, and it is plugged into my Sony AVR. I've played with the settings on the TV, no effect. I have played with the display settings of the Roku (forcing 1080, forcing 4k, forcing HDR, letting it auto-detect) and all it does is dim or brighten the screen while not really affecting the jittery effect at all. There will be smooth motion of, say, a car moving across the screen, then a sudden jittery jump of the entire image, then the car is a few hundred pixels left or right of where it just was as it continues its path across the screen. On very slow scenes, its either not present or not noticeable, but on action sequences, its as though N number of frames are simply skipped, if that makes sense.

PLEX ON ROKU 1080P

Still other content, from 1080p up through 4k (which the Roku Ultra should be able to handle on 'direct play'), the image is smooth and crisp, except the entire image shakes or jitters every few seconds. Hard to describe exactly what I am seeing, they only last a split second, but they are stacked along the perimeter of moving objects, and look like they're black and white. Choppy rectangular lines on the edges of moving objects, like people. On more recent 90s TV shows, I'm not sure if its trying to 'up convert' or what, but the image is crisp, however there are lines visible when there is motion. On the Roku stick/Sony TV upstairs this is a non-issue, smooth clear video.

PLEX ON ROKU FULL

On old 90s TV show episodes (480), it looks like those old 320x200 mpg files from the BBS days when you full screen them on a 21' Sony Trinitron at 1280x1024 - totally blurry and pixels the size of my thumb nail. Roku Ultra has no audio/video sync issue, however image quality is having serious issues. Figuring the LG's internal CPU just wasn't up to the task, I bought a Roku Ultra. Changing the bitrate from 'original quality' to anything else makes it work great, but I have to manually do this each and every time I watch something, which gets annoying.

PLEX ON ROKU 480P

But the audio is 100% out of sync, all the time, on any and all content from 480p up through 4k, via Plex. With the Plex app, I experience no image deterioration of any kind, no tearing of the screen, no jitter. The LG TV has the ability to use its own Plex app. I have the Roku stick on an old (15+ years) Sony 1080p TV upstairs, and what I am about to discuss is not present in any way on that setup - the Roku stick + Plex + ancient Sony TV works 100% with flawless picture quality and frame rate on a cheap used Sony soundbar + sub 5.1 system. Roku stick (from 6+ years ago) and now Roku Ultra. Plex server, older i7-2600 but has been running all content fine for 6+ years now in terms of performance.