How to make dynamic explainer videos from recordings without voice using VideoPlus Studio

Suppose you learned some interesting tricks and want to create an explainer video to share with the world, you'd like to put yourself in the video but you're uncomfortable speaking in front of a camera, VideoPlus Studio can solve the dilemma.

If your story happens in the real world, like an event, making a dish, repairing a tool, etc., just use a camcorder or your phone to record what's happening; if it's something in the virtual world, you can easily find a screen recording tool to record what you do on the screen. Once you have the recording, save it as a MP4 video. While recording you don't have to decide what to talk about, because later you can open the video in VideoPlus Studio, play it and write down what you want to talk as subtitles according to the scene. In the app you can define a presenter with a voice you like, clone your own voice if desired, and upload your image for the presenter's avatar; then select the presenter for your subtitles, the app will turn the subtitles into speech spoken by the avatar and add these to the video, resulting in a video presented by you even if the you are not in the original video at all.

Learn how to create an explainer video about learning ComfyUI - a fancy tool to generate images using Stable Diffusion in this step-by-step tutorial.

1. First use a screen recorder to record how to create a workflow in ComfyUI to generate images. Save the recording as a MP4 video. If the tool only supports WMV format, you can easily find a free service to convert WMV to MP4.

2. Click 'Presenter' in the menu, go through your presenters and decide which one to explain your ideas. 

3. If you need to create a new presenter or update an existing one, select the right gender and language, listen to the audio samples of predefined voices to decide which one you like. To clone voice, select a voice good for cloning, use the 'Clone Voice' option then choose your audio file. The voice can also be fine-tuned by adjusting audio properties (pitch, speed and volume). 

4. If you also want an avatar to speak the text, select 'Use Avatar' for the presenter and define properties for the avatar. First the image, select a predefined one or use your own; then select the shape, location and height, for example, use shape circle to center-crop and surround the avatar in a circle, location 4 to occupy the top right corner, height 20 to occupy 20% of the video height; last decide if you want to use slightly moving head, that may look more natural for longer speeches, and whether or not to hide the avatar when not speaking.

5. Click 'TTS for Video' in the menu then open your video file, play the video and write down what you want to talk as subtitles according to the scene.

6. Add subtitles one by one, select your presenter and the subtitle duration will be adjusted automatically based on the average speaking speed of the voice defined for the presenter.

7. You can add or remove a subtitle, merge 2 subtitles, and change the start and end time. You can always undo a change using the 'Undo' button in the top toolbar if you changed your mind.

8. Go over the whole video until you're happy with how the subtitles show, then use the export function button in the top toolbar to save the subtitles to a local file in json format, so that it's easy to make adjustments later if needed.

9. Click 'Submit Task' button in the top toolbar, review the options and set the values as appropriate. If the video is not short, you may want to specify a short Output Length first, for example, 10, to generate a 10 seconds video as a preview, before generating the whole length video.

10. Submit and wait till the task is done (notified by email), or check its status in the task history, check back if not ready.

11. Find the task and download the resulting video when available, see if you should adjust some text, presenter, etc., if yes, submit the task again after making changes, repeat the process until getting the desired result.

Following is the sample resulting video: