We get asked this question a lot: What kind of bandwidth do I need to successfully live stream video? Here's an article from DaCast.com
that breaks down the components of streaming related to bandwidth speed in an easy to digest way.
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The biggest single factor impacting your bandwidth requirements is broadcast quality. Streaming video at a resolution of 320 x 240 pixels doesn’t require much data. On the other hand, sending a video file with full high-definition resolution takes a great deal more.
High definition video files have up to 10 times the resolution of SD video, and can incorporate higher quality audio files as well. As the world begins to move towards 4K video, bandwidth requirements for streaming will face greater increases.
Another element that increases the size of video files is the frame rate. Frame rate refers to how many still images make up one second of video. Online, almost all video is encoded at 30 frames per second (fps). However, sports and video game streams are often encoded at 60 fps so viewers can catch the split-second action that occurs. Video at 60 fps is approximately twice the size of 30 fps video, requiring more bandwidth to stream....[continue reading]