Here we can see a Video that should be displayed as 16:9, displayed as 4:3 aspect ratio. If you are not sure about the aspect ratio of the video you are working with then have a look at the next image. When you save the file the video will be resized. More on Aspect Ratio In this case it is 4:3.Ĭlick 'Close' to return to the main screen. Now select the correct aspect ratio from Source and Destination options. We are going to reduce the size to 640 (wide) and 480 (high). The original size is 720 (wide) by 576 (high). In this example we are working with a video that has a 4:3 aspect ratio. Change Screen SizeĬhoose the transform tab on the left if this is not already selected (this should be the default view). Change the setting in the text box ('Dual pass, avg bitrate') to 1200. Make sure the 'Encoding mode' is set to Two Pass - Average bitrate from the drop-down menu. For the example we are using the MPEG-4 Xvid codec. Changing BitrateĬlick on the Configure button on the left of the Avidemux interface after you have chosen the video codec that you are going to use. Let's assume you have made that decision and look at how to change the bitrate and height/width using figures for our high quality video file option. The decision is yours as to the most appropriate height and width, bitrate, and resulting file size. If you are creating a file for people who have a much slower connection then you may want to choose the following settings If you want a high quality Internet TV file for people that have a good quality connection to the internet, or to upload to a video sharing site then you could use the following settings The compromise you strike is also one of judgement. The larger you make the height and width‚ the easier it is to watch, but the bigger the file size. Additionally of course, the height and width affect the playback experience for the viewer. The screen size (height and width) of the movie will also affect file size. The final choice is yours and it usually means balancing a compromise of quality vs download time. If they have fast connections then the final file size isn't as important. You may want to try and imagine what kind of internet connection your audience may have. This means that if you use a very high bitrate then it will be slower to download - this may or may not make a difference to you. The higher the bitrate the larger the file size of your video (how much space on your computer it takes up). There are some simple things to keep in mind: The screen size and bitrate you use really depends on what you want to do with the video file you are creating.
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