OBS/RTMP Information & Settings

If you are familiar with OBS/RTMP pushing, this guide contains the settings relevant to pushing to Volume.

 

Click here to view our basic guide for those unfamiliar with OBS

 

In general you should push the highest quality stream your setup is capable of. We will automatically transcode your stream to multiple qualities to suit every viewer's connection.

 

RTMP URL (See link above for more): rtmp://live.volume.com/live-origin

Codec: H.264 Video, AAC Audio.

Aspect ratio: 16:9 recommended, 4:3 also permitted

Resolution: From a height of 240 pixels up to 4k (2160 pixels).

Frame Rate: 24-30fps, or 48-60fps for high frame rate (See note below.)

Bitrate: Up to 50 Mbps Video, 192 Kbps Audio - Must be CBR.

Key Frame Interval: Any reasonable value; between 2-5s is good.

H.264 Profile: Main or High preferred; baseline is acceptable.

 

Frame Rate

We support streams up to 60 fps, however we highly recommend not to use a higher frame rate unless you have both a high quality camera (not a webcam) and a powerful processor capable of supporting these frame rates. High frame rates are commonly used when streaming video games, but have little effect on webcam streams. Broadcasting the same resolution at a high frame rate will increase your bandwidth requirement. 

 

Important Information:

  • Do not upscale your source input (e.g. using a 1080p camera to a 1440p stream).
  • Test your internet speeds to ensure you have the minimum necessary upload speed for your chosen resolution:

Resolution

Minimum Upload Speed

1280x720

5 mb/s

1920x1080

10 mb/s

2560x1440

16 mb/s

3840x2160 (4K)

20 mb/s

 

Please note that internet speed is just one factor that affects the quality of your stream.  We recommend monitoring your external encoder's status bar while broadcasting and making changes to your resolution as needed to achieve the highest quality broadcast for your setup!

 

Configuring Bitrate and FPS

If you are streaming at a higher resolution, you will need to adjust your bitrate correspondingly.  Higher bitrate and FPS require more bandwidth and processing power on your computer. If you are unsure of what your system can handle, start with the default settings below and then adjust based on your stream quality.

Resolution

Video Bitrate

Audio Bitrate

1280x720

3000 - 5000 kb/s

96 kb/s

1920x1080

5000 - 8000 kb/s

128 kb/s

2560x1440

8000 - 12000 kb/s

192 kb/s

3840x2160

12000 - 20000 kb/s

192 kb/s

 

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