How to replace a videos' audio with an audio file | FFMPEG

Watch the video:

0:0 -map 1:0 "output.mp4"
0:00 - Explanation
1:29 - Check you have FFMPEG installed
2:30 - Entering the command
5:15 - New video file with replaced audio working

Need to replace a video’s entire audio track with another audio file? Well, instead of rendering out the entire video again, you can simply and almost immediately swap out the audio with just one line of text. This method is super simple but super effective.

How to install FFMPEG: Go to post or View on YouTube

The command:
ffmpeg -i “PlayerParticles.mp4” -i “newaudio.aac” -vcodec copy -acodec copy -map