Question / Help Blurry 720p stream

CritVV

Member
Hello,

So I'm having a problem with my stream quality regarding OBS:

My settings:
720p@40 FPS
Lanczos filter
Veryfast Preset
3000 Bitrate and Buffer size
CBR/CBR padding: checked

I also use game capture for recording my games. I mostly try to stream some CS:GO and some battlefield 3.

Now...I've already read many posts that no matter what you do, having a blurry stream is inevitable when downscaling. I do not agree when comparing it to mEclipses (shroud) 720p stream for example (here is one of his video's as an example: http://www.twitch.tv/meclipse/b/546961304 ) Looking at his stream settings through R1CH's http://r-1.ch/analyze-twitch-vod.php tool I do not see anything special regarding his settings, they are almost identical to mine except for the preset, which shouldn't matter that much.

here is an example of mine: http://www.twitch.tv/critvv/b/547130862

Is there anything I can do to make my stream less pixelated/blurry?

if it matters, I got an i5 3570k @ 4.8 Ghz and a stable upload speed of 3.5 Mbit/sec
 

CritVV

Member
Alright, so it seems I have fixed my own problem after 2 hours of testing. I found the difference in the "filter" below the resolution downscale.

It is really noticable, and very strange, and I thought I'd just like to report you guys something, I've found the following:

* Bilinear just makes the stream to blurry when watching a downscaled stream at full-screen.
* Lanczos seems to make the stream sharp, which I like, but also adds a bit of pixelation, especially in dark places.
* Bicubic seems to be the most superior of the three, it removes the blurryness seen with bilinear, but it doesn't add any pixelation. It looks sharp and of high quality.

Ofcourse I tested this with all of my others settings at the same settings and at the same place in counter-strike.

Very strange...can anyone confirm this?
 
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