
#WIRECAST FOR MAC ASPECT RATION FULL#
If you’ve ever tried to watch a 320p YouTube video on full screen, you’ll know what I mean. (Shown in the top triangle of the image below). (Shown in the bottom triangle of the image below.) But on the other hand, if you record and export at a low resolution and try to display that on larger monitors or displays, the more fuzzy your content will be. If you record and export at high resolutions, the smaller you display that content, the smaller all the text and images become – to the point of being unreadable. In the image below, I’ve tried to show the potential problems when you record in one resolution and display in a different resolution. So if you don’t have an understanding about screen resolution you could end up with a low quality, unreadable video! Not only that, if you record something at a high resolution (say 16:9 1440×900) that you want to display on a smaller screen at a low resolution (say 854×480), the type and images onscreen are going to be so small they may be unreadable for your viewers.

This wastes screen real estate, and potentially lowers your video quality.

When you see horizontal black bars at the top and bottom of a video (called “letterboxing”) or vertical bars on either side of a a video (called “curtains”), that’s an example of a video that was recorded at a different aspect ratio than it is being presented. It’s quite simple: If the resolution or aspect ratio of your video doesn’t match the resolution and aspect ratio of the display on which you want to show it, your video may appear cut-off, distorted, too small, or too large. Why do screen resolution and aspect ratio matter? As another example, a resolution of 1024×576 would display as 16:9 (1.78:1). You may notice this matches the number for the 4:3 aspect ratio above, meaning this screen resolution (640×480) displays at 4:3 aspect ratio. You can easily figure out what aspect ratio a resolution is by dividing the first number (the width) by the 2nd number (the height).įor example: 640 divided by 480 = 1.33. In other words the display is 1.33 times as wide as it is high. Another way to represent this is to divide each number by the height, so a 4:3 monitor is also known as a 1.33:1 display (4/3=1.33, and 3/3=1).


A few of the most common aspect ratios we see today are 4:3 (pronounced “4-by-3”, or “4-to-3”) and 16:9. Every screen resolution has an aspect ratio associated with it. Related to screen resolution, and another thing to consider when screencasting is your screen’s “aspect ratio”, which is the ratio of its width to its height. At very low resolutions, images might look “pixelated” or have jagged edges, because there are not enough pixels to provide a crisp, clear image. At lower resolutions, there are fewer pixels so the items on screen will be larger and fewer items will fit on the screen. There are more pixels there to represent the data.Īt higher resolutions, the pixels are more numerous and smaller, so as a consequence the items onscreen will also appear smaller, with more items fitting on the screen. As you can imagine, if you are looking at two screens of the same size, and one has a higher resolution than the other (1600×1200 would be a higher screen resolution than 640×480 for example), the content on the one with the higher resolution will appear sharper and clearer.
