Final Thoughtsīy using the values suggested in this guide you should get a decent quality stream being broadcast by OBS. However, if you’re capturing your whole desktop, and it’s 2K or higher resolution, you might want to have a scaled down output resolution to something more manageable like 1080p or 720p. For the highest visual fidelity you will want your base canvas to match your output resolution. In this area we specify what resolution we want the stream to be output at. You can check out our guide on how to do that here. If you run into any audio sync issues, you can set an audio delay to align sync. We recommend at least 128, as any lower the audio can sound quite compressed. All you really need to do is set an audio bitrate. Setting up audio is relatively straightforward.
You can go down the rabbit hole and learn what each of the profiles do, and what different features they support. In most cases you will want to set ‘Main’ as the profile. The slower you set it, the higher the video quality, however the higher the CPU usage is. It will determine how much CPU power you wish to use to render the video. If you want to learn more about keyframes, head over here.ĬPU Usage Preset is only relevant if you’re using software encoding, x264. What this means is that a full video frame will be rendered every 2 seconds. We go into much more detail about how to determine your ideal bitrate in this article about BPP or bits per pixel.įor live streaming you will want to set your keyframe interval to 2. The below table gives you a rough guide on what bitrates to use. Your bitrate will be determined by a number of factors including: Just make sure the platform you’re streaming to supports it. If you have limited upload bandwidth, then VBR or variable bitrate is a good choice.
However, the downside to this is that it will require higher bandwidth. Generally speaking CBR also provides the highest visual fidelity, as it will aim to maintain a consistent specified bitrate. CBR or constant bitrate is the most widely used and accepted method. Rate control will determine how consistent or inconsistent your bitrate will be. If you don’t have hardware that support hardware transcoding, or you want higher visual fidelity, then go with the x264 option. Turning on hardware encoding will reduce the CPU usage, however it can result in slightly lower visual fidelity. Depending on your hardware you might want to enable hardware encoding.
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