Adobe Spark - Turn of orginal audio on videos

Hey everyone,

I have recently started using Spark for creating simple videos for our Social Media channels.

But i can't find a solution to turn OFF the orginal sound/audio on the videos i upload to the program.

I want to add another audiofile for my videos, but as i cannot remove the original, the videos have two audio sounds that are playing at the same time.

Does anyone have a solution for that?

An answer would be much appreciated!

Best regards,

Patrik