Is there anyway to remove the audio part on my video recording?

[AC Question]

I was having a conversation with a friend while I was videoing and don't want that conversation on there.

 

[Davidvan]

What's your phone?
It's easy to erase it in the filemanager

 

[charlotter]

It's a Samsung galaxy 4.

 

[charlotter]

It's a Samsung galaxy 4. I'm not sure where the file manager is. I have My Files but don't find anywhere to edit the audio on my video.