Question / Help Streaming @ 60FPS

[SnakeGrunger]

Hi,

Yesterday I was looking at this stream :
http://www.twitch.tv/quanticillusion

And R1CH in the chat room was mentionning how he was using this awesome piece of software, and seriously this was the smoothest, most kickass stream I had ever seen to date (60fps, almost never dropping a frame, instant camera changes not leaving trail of artefacts), apparently without using the help of a capture card such as Live HD Gamer from AverMedia, going at 3000kbps.

I tried a few streaming settings on my PC, but if I tried going for 60fps I would always drop frames.

Here is a bunch of screen caps of my streaming, graphics, computer and desktop settings.
http://imgur.com/a/pevGQ

So unless my max upload speed (3mbit) is the problem, can anyone tell me how to optimize my setup to get max quality.

Thank you !

 

[Lain]

unfortunately I'm getting a 404 from your imgur link. when you say drop frames, do you mean that the indicator on the bottom was going into the yellow/red? because that's when it starts dropping frames.. in that case, the bitrate setting you chose is probably too high.

Also, I have on rare occasions had occasional hiccups while in the green when there's almost no movement on the screen. in that case, turn the send buffer size down to 16k or 8k in the advanced settings and see if that helps.

 

[Lain]

oh, I see your images now. CPU preset all the way down to slow? wow, that's crazy. that's going to eat a ton of CPU. the name of the CPU presets are sort of confusing, I admit. slow and such eats more CPU, while high and up eat less CPU. although maybe you already knew that -- even if you have a super fast i7, I would probably not recommend going that low. the image quality you get out of it probably isn't going to improve all that much. wouldn't surprise me at all if that were the problem.

not sure other than that though. everything looks pretty standard.

(edited because I didn't see your CPU speed before typing)

 

[R1CH]

I think we need to relabel the preset option, I've seen too many people think that "slow" is faster than "veryfast".

 

[SnakeGrunger]

Thank you for the very prompt reply.

I have set it to veryfast and tried again, but sometimes I get jitters when the screen moves rapidly that looks like this

http://i.imgur.com/2vcBXh.jpg

http://www.twitch.tv/snakegrunger/b/333778087
*edit : here is the VOD where it is from, at exactly 4m27s.

Is that caused by the encoder ? Or maybe 'clogging' from my ISP that at certain times doesn't guaranty constant full upload rate?

http://i.imgur.com/8evGA.png

I am using the East Coast Secondary as my twitch server.

Thanks,
Francis.

 

[R1CH]

Try lowering your quality. Having a high quality means there are less bits available for high motion scenes like camera panning. Think of quality as a balance between low motion and high motion quality. You should also raise your buffer size to at least 3000 or higher, so that the rate control has more data to do the bitrate allocation with.