Bitrate is how many bits per second can be transmitted through a network. It is a unit of speed and size, and is similar to both miles per hour or gallons per second. What is a bit made up of? In this movie, author Luisa Winters explains how bitrate works, how many bytes makes up a bit, and how bitrate affects compression.
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- Bit rate is how bits per second can be transmitted through the network. It's a unit of speed and file weight. Akin to miles per hour or gallons per second. One byte is made up of eight bits. So if a data rate of a particular file is eight megabits per second then that is the same as one megabyte per second. Common bit rates for video are 4 Mbps for 1920x1080, 2.5 Mbps for 1280x720, Standard Definition DVD is usually 6 Mbps.
But these values are not absolute. You could have a higher or a lower bit rate in your video. So, what determines what bit rate you should use? Well, it really depends on the content of your video. There are videos that have very little detail in them that will look good at a lower bit rate. And some with lots of texture and colors that will benefit from a much higher bit rate. After all, we are talking about the data transmission speed of our file.
But that's not the only thing we need to consider. A newer codec will look considerably better than an old one even at the same bit rate. Other things to consider is frame rate. Does your video have a lot of movement? Then you might benefit from a frame rate 30 fps or higher. Does the subject in your video hardly move? Then you won't lose too much by reducing the frame rate and therefore have less frames to transmit in the same bit rate.
And the quality of each individual frame goes up. There are a lot of things to consider when choosing a bit rate for your project. But always ask yourself the following; how am I distributing the video, how is the viewer going to view the video and what is the content of the video? This will help you determine what is the best bit rate for your work.
- Types of compression
- VBR and CBR
- Export settings for video, audio, captions, and more
- Using Adobe Media Encoder for compression
- Tips to make your video look better