Again, we are talking about live TV, not prerecorded sitcoms or movies. Live news or sports or any other live TV except for maybe some show that wants to create a "look" is shot at 59.94, never 24.
Shows shot on film, or passed thru conversions to create the 24fps look are not what we are talking about here.
This is a driver issue where live TV at 59.94 suddenly starts to look like 24 and the issue goes away by cycling the driver setting.
yeah. I was talking about pre-recorded (but new OTA broadcasts), not sports or news.
Anyway, does it go away if you turn off tuner sharing? Then it would be HDHR straight to TV so could determine if it is either the app/tvOS or the DVR causing the issue.
Tuner sharing is not on. Never has been.
@tmm1 what do u want from us to troubleshoot? I'm happy to recreate and send atv logs if that works.
I’m a bit disappointed by the deinterlacing performance on the new Apple TV 4K - it looks OK on 1080i, but I can see noticeable icon/text flickering when watching SD content that doesn’t appear on my Chromecast with Google TV. Using the experimental deinterlacer helps, but is still inferior to the output from the Chromecast.
Also, I’m noticing intermittent judder on the new Apple TV 4K on TVE channels (most noticeable on sports), and I can usually get it to disappear by going back to the guide and reopening the channel. It seems to happen on both experimental and linear deinterlacing settings (using the default video driver) - toggling it sometimes makes it go away, but that may just be reopening the channel.
Especially with the recommendation to use the experimental deinterlacer for ATV4K, combined with everyone flipping between Default/experimental on others - now seems as good a time as any to bring my enhancement request up again.
If anything, it would be helpful if we could all get some guidance from the devs on what we should be using with the newest ATV 4K for now, so we can troubleshoot more effectively.
For reference, I use Experimental audio/video/deinterlacer on all my devices.
Please try v6.16.2314 from TestFlight which includes improvements to the Experimental video driver that should fix the judder and framedropping issues noted above.
ok I joined the beta and testing it now.
I tested watching NHL Hockey on NBC Sports and the issue was still present. I let it run for about 2 minutes and then submitted diagnostics.
Does it happen with recordings too?
Video stable so far but the experimental audio driver was having micro audio drops. Had to go back to default audio.
I set the game to record and checked it after a few minutes, it seemed fine. It also seemed to smooth out and play fine while recording and watching live. I canceled the recording, changed stations, then changed back to hockey and saw the same stuttering again. It eventually smoothed out.
If I turn off just the experimental 4K, it seems fine. All other experimental settings seem fine.
What if you turn off audio and leave video on?
Well I spoke too soon. Using the experimental video driver the 24fps look returns after awhile. Seems like it’s most easily triggered when a station goes to a commercial break, and I am talking about an OTA station coming in off my hdhomerun tuner. But it happens on tve streams too.
Experimental video driver off and experimental audio driver on gives me stable video and audio.
Video driver in experimental mode can’t seem to decide how to process video and changes from smooth to stutter every few minutes.
I’m seeing this too. With the deinterlacer and audio set to experimental and video set to standard, it works fine. Once I turn on experimental 4K video, it seems to start stuttering off and on as mtnbkr60 mentioned.
When watching the same program recorded vs live, it seems to play back fine. It seems like when viewing live is where the issue occurs. I’ll do more testing this evening.
I experienced the judder issue without any experimental settings enabled - it was limited to TVE channels for me (most noticeable on sports due to the motion). In my case it would either clear up on its own or by exiting and retuning the channels. I did submit diagnostic information and send a message to support, though I can’t test any further since I ended up returning my Apple TV 4K (was disappointed with the deinterlacing - particularly on SD channels - compared to Chromecast, even with experimental enabled)
Upon further investigation I have found the audio breakup with the new audio driver only occurs on ota channels from my hdhr. Tve channels are fine.
So maybe an mpeg2 decode issue or the fact that ota has 6 audio channels in AC3 mode and the tve channels only have 2 in AAC?
I agree with this. I notice the audio problem on OTA. This is a recent issue. It works better on Default audio driver.
A few observations regarding Apple TV video problems:
It seems the problems I was having (flickering on interlaced channels, intermittent judder on TVE) are not specific to the new Apple TV model, as I’ve reproduced them on the Apple TV HD on the same Samsung 4K TV.
The flickering on interlaced channels seems to be caused by my Samsung TV’s Auto Motion Plus setting. I had it turned on but down to 0 to properly play 24p, but it seems even that is enough to cause issues. After turning it off, interlaced video looks as good as my Chromecast with hardware deinterlacing.
The judder issue seems to happen intermittently, on TVE channels only, without using any experimental video drivers or deinterlacer (the latter won’t even work on an Apple TV HD). It does seem like it may be better on the experimental video driver with the last update, though as this only happens intermittently it may be a bit soon to say.
Just thought some here might be interested - it still seems like the Chromecast wins in video quality on my TV due to being able to enable Auto Motion Plus (which definitely improves 30fps TVE) without causing issues for interlaced content, though this at least solves some of the issues. Still have to figure out whether I’ll get another 4K Apple TV or a Shield for my 4K TV (I’d like a device with more power than the Chromecast)…