How to Use OBS Studio for Microsoft Teams Webinars

This guide provides a step-by-step walkthrough on how to use OBS Studio to host professional live webinars on Microsoft Teams. You will learn how to configure OBS Studio as a virtual production suite, connect your customized video feed directly into Microsoft Teams using the Virtual Camera feature, and manage your audio sources for a seamless presentation.

Step 1: Prepare Your Presentation in OBS Studio

Before launching your webinar, you must set up your visual layout in OBS Studio.

1. Open OBS Studio on your computer.
2. In the Scenes box (bottom-left), click the + icon to create a new scene (e.g., “Webinar Intro” or “Main Presentation”).
3. In the Sources box, click the + icon to add your media elements. Common sources for webinars include:
   • Video Capture Device for your webcam.
   • Window Capture or Display Capture to share your PowerPoint slides or browser.
   • Image to add company logos or background overlays.
4. Arrange and resize your sources in the preview window to create a professional look.

Step 2: Activate the OBS Virtual Camera

To send your OBS video feed to Microsoft Teams, you must use the built-in Virtual Camera feature.

1. Locate the Controls dock on the bottom-right side of the OBS interface.
2. Click the Start Virtual Camera button.
3. Once active, the button will change to “Stop Virtual Camera.” Keep OBS running in the background.

Step 3: Configure Microsoft Teams Video Settings

Now you need to tell Microsoft Teams to use OBS Studio as your camera source instead of your default webcam.

1. Open Microsoft Teams and join or start your webinar meeting.
2. Before joining the meeting (or during), click on the Device Settings (the gear icon).
3. Under the Camera dropdown menu, select OBS Virtual Camera.
4. You should now see your customized OBS canvas in the Teams video preview window.

Step 4: Configure Your Audio

The OBS Virtual Camera only sends video, not audio. To ensure your audience can hear you, you must configure your microphone correctly in Teams.

• Standard Method: In the Teams Device Settings, select your physical microphone or headset under the Audio devices section. This is the easiest method if you only need to broadcast your voice.
• Advanced Method (Sharing PC Audio): If you need to play video clips or audio from OBS, install a virtual audio driver like VB-Cable. Set the OBS audio monitoring device to the virtual cable in OBS advanced settings, and then select the virtual cable as your microphone input in Microsoft Teams.

Step 5: Start Your Webinar

With your video and audio configured, you are ready to begin.

1. Start your Microsoft Teams webinar as host.
2. Control your slide transitions, camera angles, and lower-third graphics directly inside OBS Studio.
3. Any changes you make in OBS will automatically update in real-time on your Microsoft Teams video feed for your audience to see.