Fixing Twitch Clips With No Audio When Imported Into Final Cut Pro X Last Updated 05 August 2021 by Michael Forrest
Downloading the clips
Display developer tools and select the Network tab. Reload the page, right click on the one row that appears and select “Open in new tab”. This will download the video. Note that this only works with clips, not longer content like highlights.
The problem in FCPX
When you load the clip into Final Cut, it won’t have audio (even if it does when you open it in Quicktime).
Getting set up
ffmpeg set up on the command line.
- Install Homebrew
brew install ffmpeg
Re-encoding all your mp4 files
I keep my Downloads folder clear but you might want to do this in a different folder if you don’t.
cd ~/Downloads for f in *.mp4; do mv $f /tmp; ffmpeg -i /tmp/$f $f; done
This takes each
.mp4 file, moves it to
/tmp and then uses the simplest possible
ffmpeg command to re-encode it back into the current folder.