When I use Movie Maker on Windows 10, the .mov files from my Nikon camera have a slight hissing sound in the background when played using Movie Maker. This hissing continues when the video is saved at high settings, too. This means that it continues to when I upload to YouTube. The hissing sound does not occur with the raw files when played using media player/anything else. I have an example of a video where it is hissing here, skip past the intro and you will hear it, it's not unbearable but you should be able to hear it quite clearly: https://www.youtube.com/watch?v=c7NNttHKxN0 Please help ASAP. I need to get this working for my YouTube videos. I've tried looking around and trying some fixes but nothing is working for me! Thanks PS: If you use something better than Movie Maker, which is similar (allows me to do transitions, add a caption and save in high quality with 50fps) and free, then I'd be happy to check it out. But ideally I'd just like to fix Movie Maker to save hassle.