Question / Help Best use of spare CPU for quality when Recording (not streaming)

Matthew Paluch

Matthew Paluch

Member
My Twitch stream settings seem OK for now, still some work but its fun to play around.

However i am also interested in recording straight to disk for editing and later upload to youtube, and so i have a separate settings profile for Recording versus streaming. I started with the settings in the fantastic quick start guide for each.

I am finding i have spare CPU when it comes to recording. Currently i am hovering from a minimum of 50% CPu usage across 8 cores to a max of 65% if i try my hardest to spike it. Quality on the recordings seems pretty good, with maybe some room for improvement if i spin my point of view rapidly in circles like a maniac - not a real-world need obviously, just pointing out the only flaws ive seen stress testing it.

Here are my current settings:

Resolution: 1080p downscaled from 3840x2160
FPS: 30

(Encoding)
CBR OFF
Quality Balance 8
Max bitrate 1000
Custom buffer size = 0
Audio bitrate 192 // AAC 48khz // stereo

(Video)
Downscale 2.0
Bilinear filter
30fps
Disable aero is not enabled (hmm didnt see that before)

(Advanced)
Process Priority Above Normal
x264 preset veryfast
Use CFR On
crf=18

I dont want to add much more load to my gfx cards, although i am open to some suggestions to test.

My main goal is to use some of this spare CPU (i am really having to go bonkers to get it to hit 65%, its 45-55) to increase overall quality of the final product.

Do i start with quality 8 boost? or do i lower it to try and improve quality of high motion, and bump up other stuff?

Is crf lowering the most basic way to get quality from excess CPU?

Any help appreciated

Also - this may sound dumb, but if i am confident my stream is recording OK, is there any reason i cant minimize my OBS screen on my 2nd monitor? its distracting as heck haha!
 
Matthew Paluch said:
My Twitch stream settings seem OK for now, still some work but its fun to play around.

However i am also interested in recording straight to disk for editing and later upload to youtube, and so i have a separate settings profile for Recording versus streaming. I started with the settings in the fantastic quick start guide for each.

I am finding i have spare CPU when it comes to recording. Currently i am hovering from a minimum of 50% CPu usage across 8 cores to a max of 65% if i try my hardest to spike it. Quality on the recordings seems pretty good, with maybe some room for improvement if i spin my point of view rapidly in circles like a maniac - not a real-world need obviously, just pointing out the only flaws ive seen stress testing it.

Here are my current settings:

Resolution: 1080p downscaled from 3840x2160
FPS: 30

(Encoding)
CBR OFF
Quality Balance 8
Max bitrate 1000
Custom buffer size = 0
Audio bitrate 192 // AAC 48khz // stereo

(Video)
Downscale 2.0
Bilinear filter
30fps
Disable aero is not enabled (hmm didnt see that before)

(Advanced)
Process Priority Above Normal
x264 preset veryfast
Use CFR On
crf=18

I dont want to add much more load to my gfx cards, although i am open to some suggestions to test.

My main goal is to use some of this spare CPU (i am really having to go bonkers to get it to hit 65%, its 45-55) to increase overall quality of the final product.

Do i start with quality 8 boost? or do i lower it to try and improve quality of high motion, and bump up other stuff?

Is crf lowering the most basic way to get quality from excess CPU?

Any help appreciated

Also - this may sound dumb, but if i am confident my stream is recording OK, is there any reason i cant minimize my OBS screen on my 2nd monitor? its distracting as heck haha!
Click to expand...
two possibilities is 1. raise your fps to 60fps or 2, lower your CPU preset to faster.

either way you do it. raise your bitrate and buffer to 25000. buffer 0 is fine but I if you are experimenting, try both and see which one works for you.
 
local recording is a annoying task each game for recoding will use their own bitrate
and some even in mc ive found at 1080p at 45 fps with fraps its like 120000kbs
 
There is no point in trying to increase CPU usage for something like better video compression when doing a local recording like this. You will not increase the quality at all. The entire point of your local recording settings are to ensure that the quality remains constant at your quality target (crf=18) by allowing it to use any bitrate it wants. The only thing more compression would do is slightly decrease file output size, which should not be a concern.

Leave your settings alone. If you want to reduce file size for uploading to Youtube, recompress your file afterwards with a program like Handbrake.
 
Sapiens said:
There is no point in trying to increase CPU usage for something like better video compression when doing a local recording like this. You will not increase the quality at all. The entire point of your local recording settings are to ensure that the quality remains constant at your quality target (crf=18) by allowing it to use any bitrate it wants. The only thing more compression would do is slightly decrease file output size, which should not be a concern.

Leave your settings alone. If you want to reduce file size for uploading to Youtube, recompress your file afterwards with a program like Handbrake.
Click to expand...
good point.
 
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