This tutorial video will show you step by step how to remove sound from a video (permanently) using Lightworks video editor.
This will permanently remove audio from MP4, AVI, MKV, MPG, MPEG, FLV, WMV, and other video files.
Lightworks is a free video editor for Microsoft Windows, Linux and Mac.
Lightworks is a free professional non-linear video editor with a lot of features.