EPT--------------------
CPU: Athlon II x2 260 3.2GHz
VCard: AMD HD7750 2GB
Memory: 6GB RAM
D.Speed: 1.53mbps
U.Speed: 0.53mbps
Xsplit Preset: veryfast
FPS: 25/20
VBitrate: 300
Help with stream settings using xsplit
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unknownuserlol
Philippines4 Posts
-------------------- CPU: Athlon II x2 260 3.2GHz VCard: AMD HD7750 2GB Memory: 6GB RAM D.Speed: 1.53mbps U.Speed: 0.53mbps Xsplit Preset: veryfast FPS: 25/20 VBitrate: 300 | ||
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Cyro
United Kingdom20322 Posts
200kbit to game, you've got 330kbit left over - 96k to audio, thats 234kbit available for video bitrate (at this point i would suggest setting constant bitrate (cbr) and strict cbr..) But because of the CPU that is both weak compared to a modern intel CPU and dual core, with sc2 running you'd have like 0.5 cores open for encoding workload, instead of the 2.5 you would have on a quad core. If you're lucky, 360 height video with appropriate aspect ratio at 15fps with the bitrate settings i said might produce something maybe a tiny bit worth something, but probably not | ||
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HellGreen
Denmark1146 Posts
 Your upload speed potentially sets some hard limitations on your options for streaming. You didn't mention where you live (country) or your ISP but some ISPs throttle your throughput, so you might not have 0.5 upload stable. a) Can you elaborate on your experiences here? b) Are you dropping frames (look at or mouse hover XSplit's title bar when live). c) To rule out hardware, even though you do say the game is fine, can you do a 'Local Recording' using same settings as when live and playback the VOD and verify it's fluid. d) Please link to one of your live recording VODs so we can confirm the type of lag. Lag can be defined in many ways. e) Please list your XSplit stream settings. Resolution, bitrate/buffer, quality, audio settings, the lot. I know Cyro means well, I would not recommend using CBR until further info has been shed. If your upload is not consistent it would make matters worse. Also, audio bitrate with this low bandwidth could/should be <96 kbps. An additional ~50-60 kbps is better spent on video than audio in this circumstance. This could be as simple as tweaking the buffer or it could be another setting. I need to know more Here's a config to try out also: Resolution: 240p FPS: 25 Bitrate: 200 Buffer: 300 Quality: 6 Audio: Bitrate: 32 (or if using Speex, just leave it at default) Don't run a game yet, just stream your desktop (or something static, like a picture). Then stream the menu of your game (Starcraft?), then try a replay. Verify each step is lag-free by a) watching out for dropped frames in XSplit and b) using a different computer, or even better get a friend to view it from remote. Previewing your own stream can be problematic with very low bandwidth available. | ||
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Cyro
United Kingdom20322 Posts
I just like to use CBR for low bitrate streams - i find setting 600kbit video up (i have overclocked i7.. so i can get a lot more out of it than somebody with half a core of an athlon II to spare) it's difficult to get VBR to be strict enough and use enough bits, without using an excessive crf (quality) setting that would make the final result not as good as possible. CBR gives you finer control and it's easier to use a higher % of your bitrate more consistently at lower bitrates, though it's questionable if and how much it helps. I think it can make things better too, there are less variables with it, but there's very little discussion about it | ||
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HellGreen
Denmark1146 Posts
On April 08 2013 01:24 Cyro wrote: [...]but have to emphasize again there are probably no results to be had, unless you have no expectations I strongly disagree. There are tons of streams available in low resolution, and there are plenty of areas in the world where unlimited data plans is nothing but a fairy tale. This obviously goes for both the streamer and the viewer. Not everyone has the requirements or need to do a high bitrate 720p60 in order to enjoy streaming your game play. It is usually something people upgrade as they grow. On April 08 2013 01:24 Cyro wrote: I just like to use CBR for low bitrate streams - i find setting 600kbit video up (i have overclocked i7.. so i can get a lot more out of it than somebody with half a core of an athlon II to spare) [...] (Sorry I hacked up your post. See next paragraph.) [...] CBR gives you finer control and it's easier to use a higher % of your bitrate more consistently at lower bitrates, though it's questionable if and how much it helps. But you are taking things out of context. You highlight using 600 kbps which is way outside the OP's options. I'm trying to help the OP based on his data, not theorycraft on possible ways to use x264. We don't know if the OP has a stable upload, so the advice is bad until we know more. Using CBR is generally not recommended unless you are experienced with stream settings (yes I have read the blog at Twitch, but that's doesn't mean everyone must/should change their settings - not yet anyways. We will probably have to fine tune our CBR option before it works as seamless as VBR). It's not only simpler but also safer (tried and tested) to use VBR. Speaking theoretically at your points though, the fine control you mention is arguable, as well as keeping the bitrate consistent at low bitrates. To go into that, requires an established type of content (amount of motion, framerate etc). Basically using VBR allows a more dynamic spread of data than CBR, I doubt the OP will gain from CBR, at least until we have more answers The hacked out part: On April 08 2013 01:24 Cyro wrote: it's difficult to get VBR to be strict enough and use enough bits, without using an excessive crf (quality) setting that would make the final result not as good as possible. But it doesn't make any sense to seek to make VBR strict, not unless you are having QoS issues at least, and that's when you would switch to CBR (according to Twitch techs' studies). The benefit of VBR is the dynamic behavior (ie. more data for frames that need it) and bandwidth efficiency. Drawbacks are the spikes inherit to the mode. It's not a question about what is always best, but what is best for the job. Technically VBR has better quality - is it perceivable? Probably not for many. On April 08 2013 01:24 Cyro wrote: I think it can make things better too, there are less variables with it, but there's very little discussion about it Perhaps. Doesn't mean we have to confuse the OP with that here though :-). There are already plenty of discussions on CBR vs VBR due to the recommendations from Twitch. Feel free to google them on various forums @OP If you're still here, I'm awaiting your answers . PM me when you have responded please. | ||
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unknownuserlol
Philippines4 Posts
Since i have a 4:3 monitor, I set my monitor and ingame resolution to 1024x768 (than 1280x1024) with these settings: Max Bitrate: 400kbps / VBitrate: 400kbps (since I have 0.53Mbps upload) Audio: Speex FPS: 25.00 Resolution: 800x600. my stream is http://www.twitch.tv/psychtv (can't direct link of the saved video since twitch is blocked from my office) and there is a recent video saved and that's my current settings (above). Please tell me what you think. EDIT: I am from the Philippines. ^^ | ||
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Cyro
United Kingdom20322 Posts
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HellGreen
Denmark1146 Posts
On April 09 2013 07:31 unknownuserlol wrote: Thank you for the useful replies. Since i have a 4:3 monitor, I set my monitor and ingame resolution to 1024x768 (than 1280x1024) with these settings: Max Bitrate: 400kbps / VBitrate: 400kbps (since I have 0.53Mbps upload) Audio: Speex FPS: 25.00 Resolution: 800x600. EDIT: I am from the Philippines. ^^ Maybe try lowering the stream resolution from 600p to 480p. The lower resolution will allow for more bitrate per frame, and overall improve image quality and give you less pixelation. I do agree with Cyro, it's hard to optimize from here. It's viewable* for me and there's no lag. *) I live in the Philippines and I'm used to just being able to watch in 480p  | ||
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Battle60
4 Posts
I use xsplit to live stream our semipro football games on springdalesportsnetwork.com. Im not real smart with computer stuff. Where we are located I have to use a wifi hotspot and generally get a 7 to 10 mbps upload speed. When live on the devices the stream looks great but if you make screen larger on a computer or smart TV it gets a little pixelated. Also when I replay the archive file on our site its low quality and my xsplit internal recording is just a little better. Ive been using a 1500 bitrate with 720p out put at 30 fps. Is there anything else I can do to make it better. Im not a gamer but I bought a new ASUS G752 laptop to run my xsplit, is that powerful enough? Please forgive my inexperience I was out of high school when the first pc's came out so..... Thanks, James | ||
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