Question / Help Bitrate problems

[Migas68]

Hello everyone,

I'm writing this message because there is a problem with my upload bitrate. I have checked with my ISP and everything seems to be ok, both download and upload speeds are according to contract.

I have a 120 megabit connection down and almost a 9 megabit connection up.

The problem is the following, I can't raise my upload bitrate in OBS over 2500 kilobites per second because I will start to lose frames, upload being insufficient.

Since I have tried to get this fixed with my ISP and couldn't get anything done, maybe there is a problem with a Twitch server?

London server speedtest:

http://www.speedtest.net/my-result/4335256998


Amsterdam server speedtest:

http://www.speedtest.net/my-result/4335258954


I know upload speeds are different to foreign servers, but I have tested already to a London server and I had a result of 4k kb/s.

Also there is something I don't understand, according to JTVPING, I have a 50 ms ping to London Server ( picture )

Question is why does OBS say it took 500 ms to connect to the server??

https://obsproject.com/analyzer?url=https://gist.github.com/anonymous/44d0da0832d4bf7f1370


One last observation, I have a Killer e2200 Gigabit Ethernet Controller, maybe there is something wrong with drivers bottle-necking my internet speeds?


Thank you for your time.



My pc specs:

cooler master seidon 120v
gskill 1600mhz 8gb ares blue cl9 (2x 4gb) ddr3
Motherboard msi skt 1150 - z97 gaming 5
Cooler master n300 mid tower my case
xfx pro 550w core edition Bronze Plus this is my PSU
Nvidia Geforce Gtx 970 Asus Strix
i5 4690k
Western Digital 5400 rpm Green

 

[Modem]

Looking at your speedtest result, that issue sounds about right. It is not recommend that you generally go over half of your upload speed, and it appears, according to the speedtest result, that your upload is 4.4mb, and 2500 is over half.
Casting requires a constant upload speed, and if it is not a constant 4.2-4-4mb/sec, then that would be your cause of dropped frames. Selecting 2500 as your video upload actually requires more than that (2600-2700 ish) depending on your audio quality selection as well. Selecting 3000 would push you to around 3100-3200, which would almost max out your upload altogether.

If you're getting a good 2500+ out of that upload, then that's pretty good. I'm afraid that's just not a 9mb upload according to those tests. And at 32mb download, that's only a bit more than 25% what they're saying you have.

 

[Migas68]

Thank you for your answer Modem.

Well, I have a friend who just has arround 4 mb/sec upload connection and he can use OBS with 3500 kb/s with no problem, why does my upload struggle then?

 

[dping]

Thank you for your answer Modem.

Well, I have a friend who just has arround 4 mb/sec upload connection and he can use OBS with 3500 kb/s with no problem, why does my upload struggle then?

The ping test and the speed test are somewhat useless compared to this bandwidth tester. This will tell you the max that each ingest in your region can take from you. Run it a few times just to be sure. post a screen shot, and yes, this is different than the twitch ping test.

http://www.teamliquid.net/forum/tech-support/478845-twitchtest-twitch-bandwidth-tester

After you run this tool for your region, you want to use no more than 80% of the lowest that each ingest will take from you (to be safe). The 80% also accounts that your max bitrate is just for video and doesn't account for audio from OBS (typically 128kbps) and also game connection. typically you could run more, but to answer your question above, the internet isn't always "fair" how it prioritizes traffic, nor is each connection to the internet identical with another's route to the destination.


If you still believe after doing all that, that your connection can sustain a constant 3500 bitrate when you only have 4000, then you might try using "minimize network impact" in OBS.

Lastly, you claimed in the OP that you use a "Killer e2200 Gigabit Ethernet Controller", but in your log is shows you are connected via a wireless connection. this could be part of your issue, dont think connection speed with wireless, think sustained connection at 3500 bitrate to which wireless sometimes prioritizes other connections and causes you stream to stall