Question / Help Stream-Problems

.c0dy

New Member
Hey guys :)

I'll make this a short story.

My Specs are:

CPU: i7 3770K OC'ed to 4.5GHz (stable)
RAM: 16GB
GPU: Nvidia GTX780 Ti

These are the most important.

I've used many speedtests (testmy.net, ShaperProbe, speedtest.net) to get the most accurate result possible.
All say that I receive most of the time my full 6Mbit UL.

I saved the result from ShaperProbe:
Estimating capacity:
Upstream: 6138 Kbps.
Downstream: greater than 200 Mbps.

The measurement will take upto 3.0 minutes. Please wait.

Checking for traffic shapers:

Upstream: No shaper detected.
Median received rate: 5973 Kbps.

Downstream: No shaper detected.
Median received rate: 100016 Kbps.

So I entered these data into the Estimator.

Recommended Settings:
  • Recommended max bitrate: 3500
  • Recommended buffer size: 3500
So I used them. FPS set to 45, Resolution 1920x1080 scaled down to 1280x720 and Filter Lanczos.

x264 Preset: veryfast
Encoding Profile: Main
Custom x264-Setting: vbv-bufsize=78

Everything Source is set as Global Source.
It's Game Capture, a picture as overlay and Text that shows the current music playing.

The game is Counter Strike: Global Offensive.

Although my Upload should be enough sometimes me ping goes beind good and evil.

Unf. I streamed a demo playing, but I forgot to set to save past broadcast. Will provide anotherone later.

I watched the stream on another network and the quality is okay. But every few seconds the picture get's kinda blurry for a second and then it's fine again.


Maybe you have some more ideas?

This is a past stream where I used NVENC. But after reading the quality is most of the time that pixelated, i switched back. (NVENC-preset was High Quality which seems to be like that?)

http://www.twitch.tv/c0dycode/b/509063237


EDIT: For whatever reason I couldn't upload the log. So here it is:

http://pastebin.com/UJeWf7He
 

.c0dy

New Member

Ranmza

Member
Will see how this changes the ping-sided-problem. Thanks for that :)

If you'r having high PING problem on your side while playing, you can try to enable Minimize Network Impact on Broadcast Settings, but this can make your FPS drop a little.
 

.c0dy

New Member
That's kinda strange, because all speedtests confirm that I do have atleast the 6000 (or sometimes 5900) kbps upload. Main bitrate is 3500 so I'd still have more than 2400kbps spare. This shouldn't push my ping up to 500ms+.

But this occurs only sometimes. Will see about that.
 

Ranmza

Member
That's kinda strange, because all speedtests confirm that I do have atleast the 6000 (or sometimes 5900) kbps upload. Main bitrate is 3500 so I'd still have more than 2400kbps spare. This shouldn't push my ping up to 500ms+.

But this occurs only sometimes. Will see about that.

Use the Log Analyzer: http://obsproject.com/analyzer

Check "Scan entire log, not just the first stream session (may produce duplicate warnings)" on it. It'll show a lot of informations about your stream, I mean a lot!
 

Sapiens

Forum Moderator
@R1CH's post further down in the same thread also warns that configuring the buffer size for a single frame can severely impact quality. Please be sure to do your research before making changes like this so that 1) you're sure that the change is needed and that 2) you understand the change's impact. :)
 

.c0dy

New Member
Okay had a few more streams now.

There is a difference between LoL and CS: GO, I know that.
I'll explain it.

Same specs as before:
CPU: i7 3770K OC'ed to 4.5GHz (stable)
RAM: 16GB
GPU: Nvidia GTX780 Ti

Connection:
100/6

Upload is still stable at around 6Mb. As earlier mentioned maybe sometimes around 5.9.

My settings are:

Used most of the time NVENC
Bitrate still 3500
Buffer, for testing is not at a custom-value. Seems to let me stream a bit more "stable". So further below for descripion.

For LoL:
1920x1080 downscaled to 720p @ 60FPS

OBS-Rate is about 3500 while streaming. Sometimes a little bit more sometimes a little bit less.
Ping is absolutely fine, no lags or anything.

For CS:GO
It doesn't matter if I use 60FPS or 30.
Even if i lower my Bitrate to 2700 or 2500, I still get sometimes random-lags and high-ping. Sometimes I can "feel" it myself, and sometimes if i don't the other guys tell me that I'm lagging.

I retested if my ISP would Traffic-Shape the Upload or download with DiffProbe. According to that test, that's not the case.

Tested 25MB-Upload at Testmy.net again.

Upload Connection Speed:: 5426 Kbps or 5.4 Mbps

Dropped a bit, but should be enough.

The OBS-Logs do not say anything. Just that I got a Xonar-Soundcard, but the mentiones GX-Setting is not used, as I use Low-Latency-Drivers anyway wich do not provide that mode.

Last week I had a strange issue. I kept watching my OBS on my second monitor while playing deathmatch in CS: GO.
I got a huge ping of 300+ and OBS said my rate went up to 24000?! OBS said nothing about dropped frames or anything. The log was clean again. Any more ideas?
 

Jack0r

The Helping Squad
You could try to activate "Minimize network impact" or even the Automatic low latency mode, and test those with CS:GO.
But if it keeps lagging you will probably have to test with lower bitrates. Below 2000, 1500 or so. And see if it still lags.

@Cuhrunchy make a new thread, post a log, explain your problems.
 

.c0dy

New Member
Thanks, will try that out :)

Does this bring any side-effects with it? Does the quality suffer from that?
 

Jack0r

The Helping Squad
No change quality wise. It just changes the way obs creates and sends out packages.
It could lead to dropped frames, if your connection cannot keep up. But its worth a try.
 

.c0dy

New Member
Okay, thanks for the advice :) Will test it out later today.

BTW: Streamed yesterday with the same settings and had barely any lags, if any at all :/

Will test it anyway a few times with different settings :)

Thanks again
 
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