Recommended Obs Stream Settings for 4mb Upload

This guide is especially for people with an upload-speed between effectually 700-1200 Kbit/s, because above this you shouldn't have that much trouble at finding convincing settings (540p easily)!

Table of content: ​

• How to calculate your bitrate
• Instance-calculation
• Table of different upload-speeds with resolutions and presets
• Presets: Screenshot-comparing
• Formulae
• Some notes
• Final words

How to calculate your bitrate: ​

Go to: world wide web.testmy.cyberspace and perform a upload-speed-exam.

You have to keep the bitrate for your game and your audio in listen, also some room for spiking.
You want to use around lxx % to eighty % of your bitrate, next steps requite y'all further advice.
I recommend Ever using mono, unless you take a loftier enough upload speed for don't caring nigh the actress file size or you actually need to take the difference between right and left channel.
Note: Mono volition give y'all better quality than stereo at aforementioned bitrates, considering there is only one channel to encode compared to the 2 channels of stereo.
Then y'all have to decrease the speed you want to safe for your game. Also you should accept a few bites left for when OBS spikes at the bitrate.

Instance-calculation: ​

You have, similar me, an upload of 1 Mbit or roughly 1000 Kbit/south. I think audio quality below 64 Kbit/s is way also bad to listen to, so I took this for my stream. For me I found out, that I need around 100 Kbit/due south left for my game. Furthermore OBS' bandwidth usage varies around 35 Kbit/s above and beneath the targeted bitrate.
So let's calculate:

1000 (Upload.speed)
- 100 (Game/Internet)
- 64 (Sound)

- 35 (Spikes)

801 (Bitrate) ​

This is the bitrate, y'all desire to utilize for video-encoding.

In fact, that's pretty much exactly the bitrate I am using, which is 800 Kbit/s.
This might differ a little chip for anybody, just information technology'southward definitely a good starting indicate. If yous face lags in your game, just lower the bitrate 50 Kbit/southward. If it'south okay, you tin can either keep that or attempt like 775 Kbit/southward and then on...

Tabular array with resolutions ​

The bitrate in the top is the bitrate we merely calculated above.
The slower the preset, the college the CPU-usage.

As you can see in the "size in %"-section, presets beneath "veryfast" don't give a real advantage in the bodily bitrate you need for a specific resolution, they will even need a slightly higher bitrate, just volition give an increase in encoding-quality, fifty-fifty though the difference might non be worth it in some cases.

If you want to try slower presets, keep track of your CPU! ​

You should try framerates like 24, 25, 30 and other common framerates.
Because I assumed a relatively loftier touch on in bitrate for different framerates, you might exist able to squeeze out a few more fps than in the table (excepting veryfast 360p at 700 kbit/s), but going with college framerates could cause a more than washed-out stream at motion-scenes, so picking these settings should be safe to provide a relatively constant quality while moving.

Besides endeavor to use Lanczos or Bicubic filter for downscaling if possible, because it will provide much more sharpness for low performance cost! ​

Note: Lanczos is ofttimes told to be the sharpening-filter, considering information technology kind of overshapens the images. In my personal opinion, at 540p the Bicubic looks ameliorate, only this is just a preference!

Presets: Screenshot-Comparison ​

Here are some screenshots. They are all at exactly the same settings except the preset.
These are all 432p @ thirty fps and 800 Kbit/south video-bitrate, contour is set to high, balance is default.
I've added ultrafast, and so you can run into, why you shouldn't use presets faster than veryfast.

The differences are pocket-size, but you can notice an increase in item and sharpness. (You lot can see the differences all-time, if you compare the workers.)
Especially if you look at the right worker, you run into the line on the basis existence cutting through for veryfast and faster.
An other good point to look at is the outline of the building or the number above the edifice/ between the one worker and the building.

Y'all tin can notice, that the quality-differences between veryfast and faster as well equally between faster and fast seem to be the biggest
.

Therefore I practise recommend using faster or fast.

​

(nearly of your systems should be able to handle this, due to the low resolution we are using.)

But again: Go along track of your CPU, while testing the slower presets! ​

Formulae: ​

If you want to calculate on your own, you can either use my table (I started at 360p with 30 FPS and a Bandwidth of 700 Kbit/s with veryfast for a very skilful stability) or y'all have to figure out an ain setting with a sure bandwidth, resolution and FPS, which looks fine to you lot.
However, here are the formulae:

nBW (when on the right on the equality-sigh) = needed bandwidth
nBW (when in the formula) = new bandwidth (if you lot take a faster connection than your starting betoken)
nRes = new resolution
nFPS = new FPS
oBW = old bandwidth
oRes = quondam resolution
o FPS = old FPS

Like written in the table, these are settings for mid-motion games, similar RTS. If yous are playing a low-motion game, you might be able to get away with the settings for your calculated bitrate+100 Kbit/s, for loftier-motion games the opposite.

Too I did cut some resolutions and presets, because they are not as „adept" every bit the others. (They are non sufficient for these bitrates or take too much operation) I tried to evangelize a guide containing equally much particular as possible and needed, because there are no sufficient guides out there for depression bitrates in my stance. All these is from testing, calculating and research. The formulae I mainly used are: qval, iii/4-rule and principle of proportionality
(I can provide the open-role-canvass, if you want to calculate different bitrates and/or resolutions yourself.)

Final words:
​

I aimed to provide a relatively stable stream, rather than just a expert looking stream at no motility!

I was struggling, finding the correct settings for my stream and most of the "guides" on the internet for my low upload speed didn't convince me at all.

So after the couple of weeks of reading, testing and calculating, I decided to do a short guide on my own, which contains the most important stuff for virtually users, not going too deep into the matter.

These settings might differ individualy, depending on your exact upload-speed, stability and your system (not only the hardware, but the software, likewise).

So you might want to adjust a little scrap here.

This should help y'all, finding the right settings rather then simply tell yous, what to use.

If in that location are whatever mistakes, every bit well in content as in language too, you are welcome to transport me a PM, so I tin correct them.

I hope, this could assistance you guys.

deanhispeauncer80.blogspot.com

Source: https://obsproject.com/forum/resources/low-upload-speed-how-to-find-the-right-settings.185/

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