Synthesia: Create a personal AI avatar and voice clone

Synthesia Try it →Watch full video →Simon Crowe · Apr 2025

Demo summary

The video walks through the process of uploading a video file to Synthesia to create a custom personal avatar and recording a consent script for voice cloning.

Step-by-step

Navigate to Personal Avatar and click Create
Ensure your recording environment is quiet and the background is uncluttered
Upload a pre-recorded video file or record yourself via webcam
Select your preferred language from the dropdown menu
Read the provided consent script out loud to record your authorization
Tick the consent box and click Submit recording

Options

Record via webcam instead of uploading a file
Choose from over 30 languages including Spanish, Hindi, and French

Watch out for

Uploaded video files must be between 1 to 5 minutes long
The background in your recording will become the permanent background for your avatar
Processing typically takes a few hours before the avatar is ready

Tips

Avoid covering your face during the recording
Remember to pause, take a breath, and smile while recording
Ensure your recording space is nice and quiet for better audio quality

All demos from “The Only Synthesia AI Tutorial You Will Ever Need (FOR BEGINNERS)”

2:331:11Customize a pre-made avatar in SynthesiaThe user demonstrates how to select a pre-made avatar, change its name, and customize the shirt color using hex codes in the Synthesia avatar builder.Synthesia· AI Avatar Video Generator
3:531:13Create a personal AI avatar and voice cloneCurrentThe video walks through the process of uploading a video file to Synthesia to create a custom personal avatar and recording a consent script for voice cloning.Synthesia· AI Avatar Video Generator
6:312:35Generate a video script with AI Video AssistantThe presenter uses the Synthesia AI Video Assistant to generate a full video outline and script by entering a text prompt and selecting a template.Synthesia· Script To Video AI Generator
10:240:47Swap and position avatars in the editorThe user shows how to replace a template avatar with a personal avatar and adjust its framing (full screen, circle, or box) and position on the screen.Synthesia· AI Avatar Video Generator
13:270:26Upload and replace brand logosThe user shows how to upload a custom logo file and replace the placeholder logo in a Synthesia template.Synthesia· AI Avatar Video Generator
14:280:46Add and style video captionsThe user demonstrates how to enable captions, choose between word or phrase-based styling, and customize the motion effects for text appearance.Synthesia· AI Video Editor
15:141:03Replace background media with stock footageThe presenter shows how to use the Getty Images integration within Synthesia to search for and replace background video clips based on the scene's script.Synthesia· AI Video Editor
16:170:33Apply scene transitionsThe tutorial shows how to toggle on scene transitions and apply a chosen effect to all scenes in the video project.Synthesia· AI Video Editor
16:501:05Add and mix background musicThe user demonstrates searching the Synthesia music library by mood and adjusting the volume levels to balance with the AI voiceover.Synthesia· AI Avatar Video Generator
18:080:38Generate and download the final videoThe video shows the final steps of clicking generate and downloading the completed project as an MP4 file for external use.Synthesia· AI Video Editor
Watch “The Only Synthesia AI Tutorial You Will Ever Need (FOR BEGINNERS)” →

AI Avatar Video Generator

1:010:29Edit AI avatars and scripts in SynthesiaThe video shows how to highlight and edit scripts, select different expressive AI avatars, and choose natural-sounding voices.Synthesia
3:380:29Translate videos into multiple languages with SynthesiaThe demonstration shows the one-click translation feature that converts a video into multiple languages while allowing for manual script adjustments.Synthesia
2:331:11Customize a pre-made avatar in SynthesiaThe user demonstrates how to select a pre-made avatar, change its name, and customize the shirt color using hex codes in the Synthesia avatar builder.Simon Crowe
3:531:13Create a personal AI avatar and voice cloneCurrentThe video walks through the process of uploading a video file to Synthesia to create a custom personal avatar and recording a consent script for voice cloning.Simon Crowe
10:240:47Swap and position avatars in the editorThe user shows how to replace a template avatar with a personal avatar and adjust its framing (full screen, circle, or box) and position on the screen.Simon Crowe
13:270:26Upload and replace brand logosThe user shows how to upload a custom logo file and replace the placeholder logo in a Synthesia template.Simon Crowe
16:501:05Add and mix background musicThe user demonstrates searching the Synthesia music library by mood and adjusting the volume levels to balance with the AI voiceover.Simon Crowe
1:390:28Create an AI avatar video in SynthesiaThe user shows the process of selecting an avatar, choosing a voice model, and inputting a script within the Synthesia platform.Intellagents
0:490:31Customize AI avatars and backgrounds in SynthesiaThe user shows how to select different AI avatars, change their costumes via text description, and modify the scene background and branding.Synthesia
1:470:14Edit video scripts with AI promptsThe demonstration shows how to manually edit the avatar's script at the bottom of the screen or use AI prompts to rewrite the text.Synthesia
7:091:56Generate a corporate AI video in SynthesiaThe demonstration shows selecting a professional avatar named Bruce, choosing an outfit, and placing him within a template before generating the video from text.Agrollo Reviews
2:200:43Customize AI avatar outfits and brandingThe video shows how to select an avatar in the Synthesia editor and use a text prompt to generate a custom outfit, including adding a company logo to the character's clothing.Synthesia