Next time you open it, you need to change the aspect ratio again. Besides these two, 1:1 and 9:16 are getting popular on social media sharing nowadays.Īs far as you may know, many media players enable you to change the aspect ratio in real-time when playback. The former is the standard TV format, while the latter is the latest widescreen TV format. The term Aspect Ratio refers to the relationship between the width and height of a video, which is expressed normally in the form of 'width: height', for example, 4:3 or 16:9, and it is irrelevant to the actual physical size of the image. Before reading this article, you may ask: What is the Aspect Ratio?