Just some stuff about me.
Although this next command isn’t exactly a filter, it’s still useful to know how to remove or mute, audio in an MP4.
Below is the quickest way to remove audio from any form of video using the -an option:
$ ffmpeg -i input.mp4 -an -vcodec copy output.mp4
**Tip:** -an indicates no audio output.
Documentation https://ffmpeg.org/ffmpeg-all.html#Examples