OBS + BoxCast

This step-by-step guide shows how to connect OBS to BoxCast using RTMP.

Wade Clark avatar
Written by Wade Clark
Updated over a week ago

Open Broadcaster Software (OBS) is free and open-source software for video recording and live streaming. You can stream from OBS to BoxCast in two different ways.

The first way is using BoxCasts RTMP integration with OBS.

The second way is using a BoxCaster or BoxCaster Pro.

Follow the steps below to learn more about streaming to OBS.

Connecting OBS to BoxCast via RTMP

Watch this video below or follow the steps to connect OBS to BoxCast.

Start by, coping your Stream Key from your BoxCast Sources.

*If you need to create an RTMP Source, learn more from our support article.

Next, open OBS, and click on the Settings tab.

Click Stream, select BoxCast from the Stream Type, and copy the stream key from the dashboard into the Stream key area in OBS.

When using the BoxCast Integration, we will automatically fill in the RTMP Server URL.

Make sure you have a broadcast scheduled in the BoxCast Dashboard and hit Stream in OBS. You will want to start a stream at least 5-10 minutes before the broadcast goes live to ensure it goes live at the time you scheduled it to start. The broadcast will not begin until the time you selected in the BoxCast Dashboard.

Connecting OBS to BoxCaster via our BoxCaster or BoxCaster Pro

The recommended way to stream from OBS to a BoxCaster is to use Projector Mode to send the program feed to the BoxCaster from the computer. Using this approach provides the following advantages:

  • The Boxster's hardware encoding relieves your computer of the task of encoding the video and audio. Hardware encoding is more reliable and efficient.

  • The BoxCaster can take advantage of specially designed communication protocols to optimize your available network connectivity — OBS can't.

  • The BoxCaster gives us the ability to help troubleshoot any issues with your broadcast, including hundreds of data points and logs our expert streaming coaches can look at. OBS provides limited troubleshooting capability.

To Stream from OBS through your BoxCaster

Connect the BoxCaster to your computer via the appropriate cables (Display to HDMI, Thunderbolt to HDMI, VGA to HDMI, USB C to HDMI etc).

The BoxCaster should be recognized by your computer as a second monitor, so you'll need to ensure your display settings are set to recognize your computer as the primary display and BoxCast as a secondary display.

PC: Panel Items - Display - Screen Resolution - switch Display dropdown to Boxcast 

Mac: System Preferences - Displays - AirPlay Display dropdown - Turn OFF

Next, make sure you direct your audio to go out via HDMI to the BoxCaster. If this isn't done BEFORE you open OBS, your audio won't appear on the stream.



Start and configure OBS as desired.

Right-click or Command-click on the preview window and choose Monitor 1 or BoxCast from the Projector menu.

This should now send the program feed of OBS over to your BoxCaster. If you still are not getting audio, you might need to click on the audio source and go into the Advanced Audio Properties and select "Monitor and Output" for it to work.

Restrictions of Note:

  • Do not set audio bitrates below 64kbps. This will result in OBS encoding your audio in HE-AAC and will result in no audio on your stream.

Need Help?

Reach out to our friendly streaming coaches at questions@boxcast.com or use the chat button in the bottom-right corner of your screen.

Did this answer your question?