Hello. I have a software project which I'm going to start selling soon. I have created a few short videos (20 - 30 sec) and one longer video (90 seconds) to show it in action on the front page. Each video is in a section and copy describing each section is next to it. But I made the videos with no sound. I think it is perfectly fine, to have these short videos mute, they are more like gifs. But I wonder whether it is ok to have the longer video with no sound? I mean of course it would be better to have it voiced, but I have no resources, I'm not a native speaker and it would take me a lot of time to produce something that wouldn't be off putting. When I make some money I will hire a professional. Again, everything is described in text copy next to the video. But my concern is that a viewer will click the play button and expect sound while it only be moving picture.