Question / Help Lagging for viewers every 20-30 seconds

A

Atanas

New Member
Hello guys,
Im experiencing lagging from every viewer that watch my twitch channel.
My PC Settings are:
CPU Name: AMD FX(tm)-6300 Six-Core Processor
Physical Memory: 4GB RAM 1600
Video Adapter: GIGABYTE ATI 7850 2GB OC
Win 8.1
Speedtest: http://www.speedtest.net/my-result/4354034707 ITS MBPS not MB/S xD
Logfiles:
https://gist.github.com/1d6fc43c2fd81a29af8e
https://gist.github.com/f6ea1803913928b3fa14
Im Streaming at 1080p i think with 3500kb/s
Im rly looking forward to fix this :/
I was testing on hitbox and there wasnt any lag for the viewers,but when i switch to twitch my all viewers are lagging every 2 secs
 
Last edited:
Atanas said:
Hello guys,
Im experiencing lagging from every viewer that watch my twitch channel.
My PC Settings are:
CPU Name: AMD FX(tm)-6300 Six-Core Processor
Physical Memory: 4GB RAM 1600
Video Adapter: GIGABYTE ATI 7850 2GB OC
Win 8.1
Speedtest: http://www.speedtest.net/my-result/4354034707 ITS MBPS not MB/S xD
Logfiles:
https://gist.github.com/1d6fc43c2fd81a29af8e
https://gist.github.com/f6ea1803913928b3fa14
Im Streaming at 1080p i think with 3500kb/s
Im rly looking forward to fix this :/
I was testing on hitbox and there wasnt any lag for the viewers,but when i switch to twitch my all viewers are lagging every 2 secs
Click to expand...
you do also realize that on ultrafast preset 1080p even with 3500 bitrate will look like garbage, the absolute best quality balace your stream will look much better downscaled (try bicubic filter) to 720p, then you can drop your preset to veryfast, then you can drop your bitrate to 2500 and have probably better quality as you do now, about the same or less CPU strain WITH lower bitrate.

Recommendations:
downscale 720p with bicubic or lanczos (bicubic is sharper while lanczos will be smoother)
drop bitrate to 2500
change preset to veryfast
 
I completely agree.

While it's counter to what you'd think intuitively (higher res and bitrate is better), I noticed the computational power of my computer along w/ the bitrate I can stream at for Twitch w/o being a partner, it was higher quality to go 720p60@2400kbps and something like veryfast instead of ultrafast. Ultrafast just wasn't capable of keeping up with the action of a simple platformer.

If I used my GPU to do the rendering, at 720, I could even get AMD VCE to go even better rendering quality at a lower bitrate.
 
Atanas said:
So what i should use to downscale to 720p if im willing to stream mostly league of legends
Click to expand...
1080p downscaled to 720p

then read the details I wrote in previous post:
Recommendations:
downscale 720p with bicubic or lanczos (bicubic is sharper while lanczos will be smoother)
drop bitrate to 2500
change preset to veryfast
Click to expand...
 
Atanas said:
i really dont know how to downscale xD im such a noob
Click to expand...
you should probably read some one OBS as in some guides and settings.
In the settings window there is a tab called video, there you will see resolutiion downscale, the resolution above it (aka base resolution) should be something like 1920x1080, the downscale should be set to 1.50 (1280x720) filter bicubic or lanzcos.

In the advanced tab, there is a setting called x264 CPU preset, this should be set to veryfast

in the encoding tab, set the max bitrate to 2500 and custom bufer size to 2500.


in the future, if you dont know what it does, you probably shouldn't touch it until you do.
 
if im able to stream on 1080 30 fps without any problems on ultrafast, will i be able to stream 720p 60 fps ?
 
Atanas said:
why should i down my bitrate to 2500,when i can use 6000 without any problems ?
Click to expand...
Do you stream just to stream or do you want your stream viewable by most people? my point being, there is no reason to force your stream to 1080 then do "ultrafast" preset, then set bitrate tyo 3500 when that will look like trash and not be very viewable.

My recommendation will help you achieve all of what you want only missing the 1080p tag. other than that it should look great.
 
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