If you are already running the latest version of Open Broadcaster Software | OBS, you will only need to follow the next few steps, in order to take full advantage of a multibitrate output:

1. Download and install the latest version of OBS Multi RTMP plugin from - https://github.com/sorayuki/obs-multi-rtmp/releases. If you are currently streaming, wait until the Broadcast has finished or stop it from your Live Studio before following the next steps.

2. Restart your OBS Studio and you should now see this window in the top left corner of your OBS main panel. You can resize it from clicking on its right edge or reposition it by clicking on Multiple output and dragging it to a preferred position.

3. It is assumed that you've already created a live stream player and obtained the RTMP address and key - see how. Then you have added them to OBS Settings -> Stream:

4. Set the main bitrate and resolution that you wish to run your stream at, in OBS Settings -> Video & OBS Settings -> Output. We recommend 4000kbps for 1080p (for other resolutions see the sheet below). In any case, it shouldn't exceed 5000kbps and 1920x1080. Click Apply and then OK to save your settings.

Recommended video bitrates:

Quality

Resolution

Recommended Video Bitrate (kbps)

1080p (Full HD)

1920x1080

3500-4000

720p (HD)

1280x720

1500-2000

480p (Medium)

854x480

1000-1200

360p (Low)

640x360

600-800

240p (Very Low)

426x240

200-400

Recommended audio bitrates:

Quality

Recommended Audio Bitrate (kbps)

Poor

64

Low

96

Medium

128

High

160

High Quality

192

5. Back at the main menu from Multiple output, select Add new target, choose a lower resolution and use the same RTMP Server and RTMP Key as before, ONLY this time add 2 at the end of the RTMP Key to signify it's the second available resolution for your stream. Click OK once you have confirmed all values are correct:

6. Add another new target and use a lower resolution than the previous two. Add 3 at the end of the RTMP Key to set it as the third available resolution. Click ОК to save.

Note: Please do not add more than TWO extra resolutions for your live stream, to avoid CPU/GPU strain and instability. In Multiple output, you should only have two targets. With the main resolution you have set at first, they should be no more than three in total.

7. Start multibitrate streaming by clicking all three Start buttons.

8. Allow a minute to pass to ensure all streams are equally ingested onto our servers, before opening your Live Studio and start Broadcasting from your StreamingVideoProvider account.

9. You will see a gear cog in both Preview panels in your Live studio upon a successful execution of all the steps in this guide, from where you and your viewers will be able to switch between resolutions. The default setting for every viewer is Auto, unless a specific resolution is selected.

Note: If for some reason, you don't see the gear cog, please stop the broadcast and exit the Live Studio, and after another 30 seconds - open it and Start Broadcasting again. If you still don't see it, double-check your settings from steps 5 and 6.

When viewers with poor internet connections are watching your livestream, every time their download speed deteriorates, their player will switch onto a lower bitrate resolution instead of showing a buffering wheel, which would ensure a smoother experience.


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