Posted on Aug 21, 2020
In this article I explain how to create a video presentation like what you see below. Features of this video include:
Following is the equipment I used to make this type of video.
Google Slides (online) – Free
This is used to change slides wirelessly.
Generic Pen – $11
I bought a 7’x10′ green screen. I got just the fabric because I semi-permanently attached it to my garage ceiling since I don’t plan on using anywhere else.
Generic green screen – $21
If you want a green screen that comes with a stand, there are many options online (Amazon, etc) but they are more expensive.
Lighting is key to getting good chroma key results and a good video overall. In particular, you want to eliminate shadows as much as possible.
You can replace the green background with a still image or a video. One stock photo and video site is ShutterStock.
I just use my smartphone (Google Pixel 3 XL) to take videos.
In order to get clear audio, you need a microphone. You can get one with a 3.5 mm jack or a USB C jack, depending on your recording device.
USB C Lavalier Mic 10 feet long – $15
If your phone has a USB-C jack instead of a 3.5mm jack, you’ll need an adapter and an extension cable. I’m using the Apple – USB-C to 3.5mm Headphone Jack Adapter – White ($9) and a 16′ long TRRS 4 pole 3.5 mm male to female audio extension cable ($9)
Important: the audio cables MUST be 4 poled TRRS cables / adapters, not 3 pole TRS cables / adapters. The extra pole is for the microphone.
I use Cinema FV-5 to record video from my phone because it supports an external mic on my Pixel 3 XL.
Cinema FV-5 ($2.50)
An alternative to this app is Open Camera (free).
A tripod is necessary to hold your smartphone at the correct height to take videos.
AmazonBasics Tripod – $18
This mount will allow you to hold your smartphone to the tripod.
I use a Lenovo with 16 GB of RAM and an SSD both specs of which are necessary for video editing performance. I got mine on sale from Costco.
I’m using a sheet music stand as a laptop stand.
The overall workflow is as follows:
Creating slides in Google Slides is very similar to how you create them in other presentation apps like MS Powerpoint. In Google Slides, however, if you want to export all slides as images, you need an add-on. I use Slides Toolbox by Digital Thoughts. Once you’ve added that add-on, you can open it
and choose to export all slides as JPG or PNG images.
Notice how in my final rendered video, the background video shows through the slides.
That was accomplished by setting the transparency of the background in Google Slides to around 70% opaque (30% transparent). If you want a semi-transparent background, then you must export the slides as PNG images rather than JPG images.
Download a sample presentation with semi-transparent background in ODP (OpenDocument Presentation) format which you can import into Google Slides.
You can also download the test slides in PNG format for importing into VideoStudio.
Use the NewBlueFX Chroma Key filter in VideoStudio to key out the green background. Read my blog post titled NewBlueFX Chroma Key to Easily Remove Green Screen in Video for step-by-step instructions.
Put all assets in a single folder. Below is a screenshot of my video assets which includes
For the background video, I picked a video that could be looped seamlessly.
Make sure to enable Smart Proxy in VideoStudio to improve video editing performance. For more information, read my blog post titled Improve Performance When Working with Large Videos in Corel VideoStudio.
When you export the video, you will have many settings and export presets to choose from. For each preset, you can see the estimated output file size. There’s no point in choosing a high quality output if the source video is low quality. In Windows Explorer, right click on the foreground video and click Properties > Details to see the video specs. The screenshot below shows that my foreground video taken on my phone was 1920×1080 with a bit rate of 22254 kbps (~22 Mbps) and a frame rate of 30 frames per second (fps).
For this, I chose the following spec which gave an estimated output file size of 252 MB for a 13 minute video.
In VideoStudio, my workflow is