Q:"I have a four-minute MP4 video that I plan to use on my Facebook. Before uploading, I feel like adding my canned music track to it. Any suggestions to add audio to MP4?" - from VideoHelp

There are times when you might need to insert background music or personal audio track to a video like MP4 for the creation of new video work. Or, you just do it to make your video more impressive and attract more people to give a like after sharing it on social media platforms. Whatever the purpose, making it happen entails a specialized video editor. Below assembles 3 such software. You can read the article through and evaluate which is the best for you.