To use your voice clone:
Locate the avatar and voice icon within the script box of your video.
Hover your cursor over this icon to reveal the avatar selection dropdown and the voice selection dropdown menu.
Click the down arrow next to the currently selected voice. This will open the voice selection menu.
Select Back to all languages at the top of the menu.
Choose Custom voices at the bottom of the languages menu.
Select your preferred voice clone.
Notes:
Your personal avatar and voice clone can be used separate from each other.
Creating a personal avatar automatically generates a voice clone. See the How do I create my Personal Avatar? article to learn more.