Question / Help Recording in 60 fps - Raw recording feels like 30

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Tereith2050

Member
So I made the switch over to OBS because shadowplay had audio sync problems. And I've gotten OBS to work quite nicely actually, but I seem to have a problem that annoys the hell out of me. First of all my specs are as following

OBS installed on a 512GB M.2 Evo 970
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Win 10
GTX 1080 TI
32 GB RAM
AMD 2700X
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So my problem. Yes

When I start recording everything runs fine and there are no complaints from any programs. Problem is when I'm done the recording and I open my raw recording I
can clearly see that the FPS doesn't match up with what I was used to in-game - Yes my UW 3440x1440 Runs 120Hz but shadowplay does not have this issue and is set at 60 fps as well.

I can't for the life of me understand this issue and it annoys me quite a lot actually. I'm on day 2 now and I feel the need to post here finally because I can't figure this out myself

I've managed to find my best settings for what I run

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I have an ALIENWARE 34 inch curved which is 3440x1440 in which I record it as well.
Here are my OBS recording settings

http://prntscr.com/lx94pp
http://prntscr.com/lx94rq
http://prntscr.com/lx94uh
http://prntscr.com/lx94wm
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Here's a showcase of what I mean. It's the raw file uploaded to Youtube -
Hope I can get some help here because man this issue drives me nuts

https://youtu.be/imRz-Ql_ujk

Hope you can help!
 
koala

koala

Active Member
I downloaded the video and it is indeed 60 fps. Single-stepping frame by frame shows that really (almost) every frame is different, no duplication of every other frame or something like that. Occasionally, a frame is lost, which is seen as duplicate frame. I didn't count them, but I guess it is about 1-5%, which makes it a 57-60 fps video.
You might try a different media player, for example Vlc or Media Player Classic, if your current media player make your video look like 30 fps.

By the way, rate control CBR isn't a good format for recording. With nvenc, use CQP with a CQP value of 15-20 (lower value means better quality).
 
T

Tereith2050

Member
koala said:
I downloaded the video and it is indeed 60 fps. Single-stepping frame by frame shows that really (almost) every frame is different, no duplication of every other frame or something like that. Occasionally, a frame is lost, which is seen as duplicate frame. I didn't count them, but I guess it is about 1-5%, which makes it a 57-60 fps video.
You might try a different media player, for example Vlc or Media Player Classic, if your current media player make your video look like 30 fps.

By the way, rate control CBR isn't a good format for recording. With nvenc, use CQP with a CQP value of 15-20 (lower value means better quality).
Click to expand...


You say that CBR isn't great to record with. But I'm wondering. The reason my audio got out of sync with shadowplay was that it wasn't set to CBR but VBR. I don't want the same thing to happen here.
 
koala

koala

Active Member
I cannot comment on this. I never used Shadowplay, and I never had audio desync while game capturing and encoding it with nvenc in CQP mode.
 
T

Tereith2050

Member
koala said:
I cannot comment on this. I never used Shadowplay, and I never had audio desync while game capturing and encoding it with nvenc in CQP mode.
Click to expand...

Just played with CQP - I find the quality to be worse than CBR - I even set CQP to 1 and it fell short.

Also that 60 frames per second annoy me still. Tried 4 different players. Looks the same. Idk what to do.
 
T

Tereith2050

Member
Been nearly 3 days now. Still can't find a proper solution. I have no idea what this is. I've run - Shadowplay / Mirillis Action both of which has audio out of sync problems. I really want OBS to work because of it\s things it has. But this problem is the worst thing ever. The recording after honestly feels like 50 fps or something.

I tried capping my frames as well. Nothing seems to help. So yea this is very nice. Wish there was a proper recording program
 
Narcogen

Narcogen

Active Member
Just for testing, if you switch to Simple output mode and select "Indistinguishable quality" what result do you get?

There's no way that any CBR value no matter how high should deliver better quality than CQP 0 which is as close as you'd get to lossless. Any problems you get with that can't be solved by bitrate-- that some frames are dropping in the rendering phrase due to GPU overload that is creating duplicate frames and lowering the apparent framerate.
 
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