Can I use vidyo.ai on videos that have no sound?

Unfortunately, we are unable to process videos that have no sound.

However, you can use the 'Create Custom Clip' option to make a clip as per your liking with such videos.

Create Custom Clip could be made simply following these steps- 

https://vidyoaihelp.zendesk.com/knowledge/editor/01H9879J22E1VMRH9Y3E2111QZ/en-us?brand_id=15222327531281

Hope that helpful :)