The average uncompressed movie file might require a 5000 Mbps connection speed to stream over home internet connection. That’s the reason uncompressed video files are quite large and are very difficult to be streamed over home internet connections. Naturally, with these many images- video files of a few minutes would have several thousand images swelling it to ridiculous sizes. A video recorded at 30 frames per second has 30 photos per second of footage. A video is a collection of photos shown in rapid succession.
Encoding saves the file as a fluid video and not as a series of photos. Video encoding is the process of compressing video files. If you decrease the bitrate when compressing a video that directly impacts video quality as well. The higher the bitrate- the higher the quality of the video. Bitrate tells you a lot about the quality of a video file. Video size is a measure of the number of bits in a frame, called the bitrate.īitrate implies the number of bits processed during a particular period of time, say seconds. Bitrate can be measured in bits per second (bit/s), in kilobits per second (Kbps) or megabits per second (Mbps). You can switch to a lower frame rate to reduce video file size. Ideally for tv viewing the frame rate is 24 fps but sports videos that have a lot of motion can be at 36 fps and are usually higher in size. Most tools we discuss below let you completely erase the audio from the file. Simply removing the audio will result in a light-weight file. Sometimes the video itself is static and it’s the heavy audio and background noises that contribute to the file size. There are plenty of factors other than resolution that determine video file-size. Most of us imagine that resolution is the single-biggest factor deciding video sizes.
Things to Know About Video Compression (Before you Start Compressing Videos)īefore you start compressing videos you need to know about the factors that influence video size. Compressed files have fewer bytes than non compressed files and transfer quickly. Bandwidth measures the transfer rate in megabytes per second. When you compress a file you reduce the bandwidth required to transfer the file over a network. You can save money on hard drives by storing all your compressed files together. Zipping reduces video file sizes by about 50%. The basic idea with compressing video files is to do it in a way that you get more-or-less the same quality but with lower space requirements. Here are the advantages of making videos smaller: 1.
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