Recommended video bitrates for SDR uploads
| Type | Video Bitrate, Standard Frame Rate (24, 25, 30) | Video Bitrate, High Frame Rate (48, 50, 60) |
|---|
| 2160p (4k) | 35-45 Mbps | 53-68 Mbps |
| 1440p (2k) | 16 Mbps | 24 Mbps |
| 1080p | 8 Mbps | 12 Mbps |
| 720p | 5 Mbps | 7.5 Mbps |
NVENC in the GTX 10-series GPUs provides superior quality than x264 Very Fast, the most commonly used x264 preset. And in the new RTX 20-series, NVENC performs better than x264 Fast and on par with x264 Medium, a preset that requires an expensive dual PC setup.
Streamlabs OBS is ultimately an advancement of OBS with increased functionality. Streamlabs OBS is essentially the same OBS code revamped with a better user experience. This software is also free and offers an even easier installation process than OBS.
The option called Downscale Filter will decide how you choose to downscale your resolution if you choose to do this. The top option is Bilinear and it is the best option for streaming on a less powerful computer. Since it's the fastest it doesn't spend as much resources doing the downscale.
The main cause of a choppy video is a computer that does not meet our minimum hardware requirements. If your machine does meet these requirements, please follow the below steps to confirm you have setup OBS correctly: Check Frame Rate – Your recordings should be set to 30 frames per second (FPS).
If you have low-end specs, you will need to downscale the bitrate to 15000-25000. If your computer can handle it, you can upscale bitrate. The last OBS settings to change in this screen are in the Two-Pass Encoding. Set GPU to 0 and B-frames set to 2.
With the simple interface, OBS Studio usually boasts a lower CPU usage while streaming. OBS Studio is also the parent to most of the other alterations of the program, such as OBS Live and Streamlabs OBS.
In particular, NVENC on the NVIDIA 10-series GPUs is currently better than any Quick Sync (Intel) or AMF capable (AMD) product. Additionally, OBS also requires some CPU resources to be running, just like any other app. The more sources you have, the more CPU it will require.
For 720p video at 60 frames per second, the bitrate should be between 3,500 and 5,000 kbps. In terms of upload speeds, that means between 4.4 Mbps and 6.2 Mbps. For 1080p video at 30 frames per second, the bitrate should be 3,500 to 5,000 kbps – same as for 720p video at 60 fps.
There are a few tricks you can use to improve stream quality:
- Restart the streaming service.
- Reboot your home network.
- Move your Wi-Fi hub and router to an optimal location — somewhere central, open and away from obstruction.
- Kick some devices off the network.
- Disable your VPN.
- Change your DNS server.
The software encoder (x264) will use your CPU to encode video, while hardware encoders like NVENC will offload the encoding process to your GPU. However, the advantage is a decreased load on your CPU. If you have a particularly powerful GPU or a dedicated streaming PC, consider using a hardware encoder.
It'll give a (slightly) better image quality, and optimize the encoding portion so you get more visual quality for less bitrate. But again, it's only a slight fidelity improvement for a pretty noticeable CPU load increase. (edit) Also, some people DO use a local RTMP server and re-encode it
OBS Studio is a free and open-source software suite for recording and live streaming. Written in C, C++ and Qt, OBS provides real-time source and device capture, scene composition, encoding, recording, and broadcasting.
The XSplit Express Video Editor is the best way to edit your recordings, expand your content's reach and is 100% free. Import recordings from OBS, Streamlabs, StreamElements, and XSplit at the click of a button!
StreamLabs is a free desktop streaming application built for professional streamers. It includes hundreds of free themes and design elements you can install directly into your editor, with one click. You can select from both static and animated themes.
Instead of recording a video with your handheld iPhone, OBS enables even casual users to learn how to use multiple cameras and switch between them, add professional-looking titles, make smooth transitions between cameras, and then create a smooth recording for upload to YouTube or Vimeo.
Nowadays, there are two popular broadcast software programs: OBS Studio and Streamlabs OBS. Nearly every streamer on YouTube, Mixer, Twitch, and Facebook Live uses one of them.
Network connection for streaming.
- Step 1: Connect AV.io capture device.
- Step 2: Open OBS Studio.
- Step 3: Add AV.io device as a source.
- Step 4: Add additional source(s)
- Step 5: Gather stream key from Facebook Live.
- Step 6: Set OBS to stream to Facebook Live.
- Step 7: Configure encoding settings.
Bitrate is the number of bits per second. The symbol is bit/s. It generally determines the size and quality of video and audio files: the higher the bitrate, the better the quality, and the larger the file size because of File size = bitrate (kilobits per second) x duration.
Bitrate does have an influence on cpu, since you basically convert more data per second. But it's pretty minor even on lower end cpu's unless you go for extremes (in the 100000's). Preset, resolution and fps are of a much bigger influence on your processor.
CBR controls bitrate. CQP specifies a quality level, regardless of how much (or how little) data needs to be captured to achieve that quality level. Streaming sites want non-variable bitrates, but when you're recording it doesn't matter as much.
Thanks in advance. Yeah, "Rescale Output" in the Streaming and Recording tabs is CPU calculated, unlike the "Output (Scaled) Resolution" in Video settings (which has downscaling filters and is GPU handled). It puts more load onto the CPU and also looks bad when downscaling for example 1080p to 720p.
The biggest advantage of VBR when compared to CBR is the sound quality to file size ratio. You can usually achieve a smaller file size by encoding audio with VBR rather than CBR because of the way the bitrate is altered depending on the nature of the sound. The bitrate reduces for silence or quieter parts of a song.
If you have a powerful GPU, GPU encoding is better. If you have a powerful CPU, CPU encoding is better. The recommended number of cores for streaming is 6 so if you have 6 cores you can easily stream your game play. If you have the new Nvidia Turing cards I will suggest you use GPU encoding.
Network congestion is the main culprit. Having a static bitrate can cause frames to drop because your connection is unable to keep up and will drop frames to improve the stability of your stream and minimize latency. An unstable connection to your ISP or streaming over wifi is most common.
Tune=film. For Performance. CPU Preset= Veryfast. Profile=main. Tune=fastdecode or zerolatency.
It's part of the h. 264 codec. Basically a keyframes is a full compressed image, like a jpeg. Having a lower keyframes interval means that you will sent more framerate and this needs more bitrate and upload rate. Finding the optimal setting depends on the type of game you stream/record.
