October 30th, 2013 by Smile Harney
Just as we know, different media players, portable devices or TV apps support different aspect ratio of video. If the video is not in the proper aspect ratio for the right device, it will play look overly stretched. Therefore, sometimes we need to change video aspect ratio so as to make the video playback more normally and perfectly.
The following will introduce a step by step guide on how to change and adjust aspect ratio of movie files on Windows or Mac with the help of iDealshare VideoGo.
Click the "Add File" button to locate and add the video files for which you like to change aspect ratio.
Click the "Profile" drop-down button to select preferable video format as output profile. You can select the format the same as your original one or change to other video format.
Click the "Convert" button to start and finish changing aspect ratio for your movie files.
16:9 (1.77:1) is an aspect ratio with a width of 16 units and height of 9. Since 2009, it has become the most common aspect ratio for sold televisions and computer monitors and is also the international standard format of HDTV, Full HD, non-HD digital television and analog widescreen television.
4:3 (1.33:1) is an aspect ratio with a width of 4 units and height of 3. It is for standard television and has been in use since the invention of moving picture cameras and many computer monitors used to employ the same aspect ratio. 4:3 was the aspect ratio used for 35 mm films in the silent era. It is also very close to the 1.375:1 aspect ratio defined by the Academy of Motion Picture Arts and Sciences as a standard after the advent of optical sound-on-film.
1.85:1 and 2.39:1 are the most common aspect ratios used today in the presentation of films in movie theaters.
Other aspect ratios, such as 5:3, 5:4, and 1:1 (square format), are used in photography as well, particularly in medium format and large format.