In the previous step, we learned how to teach live classes online.
In this support article, let us configure your OBS software to share multiple screens with your students.
By the end of this article, you should be able to present your video to students with a ppt background and also solve a problem live using a whiteboard software
Watch the full video here or go through the steps mentioned below.
Download And Configure OBS
First, go to the OBS website. Now, download & install this software
When the OBS opens up for the first time, an auto-configuration wizard will pop up. For the time being, let us close it and proceed to add the sources.
ADD YOUR DEVICES AS SOURCES
To present a PPT or a whiteboard to your students during the LIVE classes, you need to add these items as a source in the OBS studio.
To do that, first, click on the plus sign on the sources and select the Window capture option. Window capture will capture any active window that you have opened.
This window could be a PPT slide on your desktop. Or it could be a web browser page. So, let me go ahead and select a PPT slide window that I have created.
To align the window properly, right-click the obs screen, select transform, and select the fit to screen option.
To add a video camera and present my face on top of the PPT add a webcam as a source. Click on the plus symbol and select the video capture option.
Adjust your webcam to fit on the top right or left corner.
You can add your academy logo, by adding the image source and selecting your academy logo.
Lastly, don't forget to add your microphone. This is required as you want your students to hear you talk. To do that, add the microphone source.
With this, we have scene 1, where we created a PPT showing a math problem. Now, I can create a scene 2 where I can solve this math problem on a whiteboard.
ADD MULTIPLE SCENES
To do that, I click on the plus sign on the scene and create another scene.
Like scene one, I will need a whiteboard source. For that, I will go to the source and click on the plus sign and select the Window capture option.
Note: For this article, I have used a free whiteboard by a company called Ziteboard.
Next, while solving this problem on my whiteboard, I also want to display the formulas.
To display that, let me go ahead and click on the plus sign from the source and click on Image.
Here, I have added the Image of the formulas. I can hide this formula by clicking on the eye symbol. I will make it appear while solving the problem.
CHECK YOUR INTERNET SPEED
A stable internet upload speed of at least 2MBPS is required if you want to stream LIVE. The last thing you want is for your students to see a blurry low-quality live class.
To check your internet speed, check your website speed from fast.com. Please note that your upload speed should be atleast 2 Mbps. Ideally, it should be >5Mbps.
In the next section, let me share with you the OBS settings you need to run your LIVE classes seamlessly (even if you have low internet speed).
OBS SETTINGS TO LIVE STREAM AT LOW SPEED
First, click on Settings in OBS.
Go to the output. Choose the output mode to Advanced.
Next, click on the Streaming tab select the default encoder. Select the resolution to 960x540 and restrict the bit rate to 1500 kbps as shown.
Now, click on the video option & select the base resolution to 1280x720. Set the output scaled resolution to 852x480. Select Downscale Filter to bicubic, and FPS to 30.
Click on Apply to save the changes.
So, with this, we now have the basic setup ready to create an engaging & interactive LIVE class for your students.
To get to know your student’s side during your LIVE classes, click on the Studio mode. This will split the screen to preview and program.
The program screen on the right side is what students will see when you change the scene.
With these steps, you are now ready to stream your video.
You can also check the support article: How to take live classes online for details.