When first creating your video, you can add a line in your prompt or select a specific voiceover and style from the workflow panel.
If your video is already generated, you can prompt the magic box to change the voiceover.
Below is the list of voiceovers you can use in your prompt with a Male or Female voice:
Clear American voice
Voice with a Californian accent
Voice with a Southern accent
Voice with a Midwestern accent
Transatlantic voice
Voice with a New Yorker accent
Young British voice
Northern English voice
Middle-aged British voice
Old husky British voice
Indian English voice
Young Indian voice
Australian voice
Standard midwestern accent
Pacific Northwest accent
American Young Kid's voice
Heavy Northern English voice
Here is an example prompt:
Change the voiceover to a male Australian voice
Note: If your prompt does not work by any chance, do a hard refresh once [by pressing Ctrl + Shift + R (Windows) or Cmd + Shift + R (Apple)] then preview and try again.