Question / Help Pixelation even with decent bitrate

E

Epileptic Toad

New Member
Hi,

I've been streaming for over a month now and while I had no problem streaming low motions games recently (at 2000bitrate, 720p, 30fps), I just did some testing to stream a playthrough of Fallout 3. The problem is that, even with 3000 bitrate, the stream, and especially the facecam tends to pixelate a lot.
I know compression is going to do that and that we can't really go very high with the bitrate because of Twitch limitations but I've seen other streams with really clear cams while streaming at lower bitrate.
So maybe there is something set incorrectly in my parameters ?

If that helps, I also noticed that lowering the AA filtering and removing the HDR effect on the game slightly improved the pixelation. So could it have something to do with how the game runs on my PC ?

Here is the log of my last few tests (I didn't change much except the bitrate) : https://gist.github.com/anonymous/8c8dbcf44aef13a8c44c
(I was not live streaming but only locally recording, the pixelation appears in the local file as well).

My specs :
i7 3770 3.4Ghz
GT640 144 shaders (not really good but enough to play Fallout 3)
8Gb RAM
 
Sapiens

Sapiens

Forum Moderator
Try changing your preset to faster or fast under Settings > Advanced, your CPU should be able to handle that with a game like Fallout 3.
 
E

Epileptic Toad

New Member
Thanks for your quick answer :)

I tried that but the difference wasn't really noticeable (tried 2500 bitrate, fast preset).

Here's an example of what it looks like, from one of my first streams with Hotline Miami which has some scrolling and blinking colors (encoded in 2500 bitrate) : http://www.twitch.tv/epileptic_toad/c/4966202
As you can see, at times, my face is really pixelated and the game isn't a GPU/CPU intensive one at all.
 
E

Epileptic Toad

New Member
So my expectation would be too high ?

I know I can't have a perfectly clear screen but how comes I've seen other people playing the same game with lower bitrate and not have so much pixelation ? (Those aren't Twitch partner of course).

Here is a fine example (I asked him and he was streaming at 2000 bitrate) : http://www.twitch.tv/hapeejackee/b/573554498
 
You must log in or register to reply here.
Top