Stuttering in preview and recording

[ParasiteEve]

In addition to old observations. I have already said that if you install an old version of OBS, enabling NVENC H.264 in the settings, the preview starts to stutter a lot. At the same time, stuttering occurs with the scales of sound sources (unbelievable, but true). If you update the OBS, keeping NVENC H.264 in the setting, the sound scales stop stuttering, but the preview still shows a bad picture, it stutters almost constantly. If we rearrange NVENC to NVENC (new), stutters disappear, but after a while they will still return, although they will not look so bad.
At the same time, if you turn off the game mode, the game still works well, showing a stable FPS, but the preview again starts to stutter strongly. For reference: OBS has a High priority among processes. I tried lowering the priority, but did not notice that something changed significantly, the stutters are still random and it is difficult to say if this option is affecting anything at the moment.

 

[ParasiteEve]

In the treasury of observations, which may be useful if at least one of the developers of the OBS reads this topic.
I strongly doubt it, but hope for the best. One way or another, perhaps it will be useful to someone else, despite the fact that these are just observations.

1. Prior to these stuttering problems, I enabled scaling in the Record tab, even though it was not necessary - the input and output signals had the same resolution, but I had reasons to do so. Now, if I turn on scaling in the "Recording" tab, stutters instantly appear and become very strong.

2. OBS 27rc5, like rc2-3, work with the Nvidia 266.27 driver much better than with the 266.47 driver, which was released the other day - with the latest version of the driver, stuttering also occurs many times more often. It feels like stuttering occurs as often as in 26.1.1.

3. Surprising fact: strong stuttering can disappear if you press pause in the game, that is, make the picture static. However, if you press pause again and then return to the game after that, stuttering will return! They may not be as strong, but they will definitely be. Magic!

 

[ParasiteEve]

I continue to observe. I installed several old games, in some of them I noticed stuttering, very similar to OBS stuttering (if you forget that sometimes stuttering in OBS is like dropping frames without any load on the PC, encoder, etc.). In other words, it could be the same problem - something outdated that doesn't fit well with the newer one in the system itself. However, this does not explain why those versions of Win10 and OBS, which used to work well together, now show stuttering. I also note that the recording made in Bandicam does not have the problems that were in the OBS, the recording is very smooth, such as it once was in the OBS itself, before everything broke
I am also wondering if the "forced use of encoder settings" item, which for some reason has been removed, will affect the problem.

 

[fatmatrow]

I've made a detailed video on the issue. See this post:

I'll Pay £300 to Anyone Who Solves This Problem for Me: Intermittent Video Stuttering

Curse it. >:/ I've ordered an Elgato 4K60 S+, and I intend to use it's PC-free capture feature for recording.

obsproject.com

(Since this is a common issue and it doesn't have a dedicated pinned thread, I'm posting this comment in several related threads. Sorry if this seems like spam, but . . . [6])

I've tried a test build with a fix that's only applied to the desktop capture and only works on output (stream/recording) and its completely gotten rid of my stutter issue. The PREVIEW will still stutter, but output remains unaffected.

 

[fatmatrow]

You can download it Here. Its missing one or two features but it works great

 

[Necril]

I found 2 ways to work around this issue:

1) Restart OBS. This is the easy one
-OR-
2) Enter the video source and enable (or disable) "hardware decoding", click OK then go back in and toggle it again to the original (and presumably desirable state)

 

[fatmatrow]

Tested it, and problem perrrrrrrrrsists—with all its bells and whistles.

did you use desktop capture with the dxgi option? and try the frame time test, that can tell you in an easier manner if its stuttering, its by the ufo test people

 

[fatmatrow]

No, I didn't. But I've just found the option. I'll try it soon and then report back.

This specific fix only applies to desktop capture using the dxgi option in the properties of desktop capture. And your preview will still stutter, but your output (stream/recording) will be stutter free, but I've tested it extensively with great success.

 

[fatmatrow]

Tried it. Stuttering persists.

- YouTube

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I shall waste no more of my time on this (for now, at least).

try it with the frame time tester and in actual games

 

[ipkonfig]

Hey all

wanted to post a possible fix that has helped me tremendiously. I created an Nvidia profile and enabled Vsync for OBS itself. Would love to hear feed back if others have any luck with this.

 

[Tymorafarr]

try it with the frame time tester and in actual games

This is surprisingly promising. Tried a 30 mins record on an actual game and this worked out for me.