If you care to roll your own solution, I think the silenceremove filter of ffmpeg should do what you want (I've not used it myself.) https://ffmpeg.org/ffmpeg-

If you care to roll your own solution, I think the silenceremove filter of ffmpeg should do what you want (I've not used it myself.) https://ffmpeg.org/ffmpeg-filters.html#silenceremove https://ffmpeg.org/ffmpeg-filters.html#silenceremove