How does “frame rate” impact the quality of my broadcast?

October 23, 2009 0


In video production and streaming, "frame rate" refers to the number of still images, or frames, that are displayed in one second of video. Frame rate is measured in "Frames Per Second", or "fps". Common frame rates include: 15 fps (mostly used for screen capturing), 24 fps, 25 fps, 29.97 fps and 60 fps.

How the Frame Rate Affects Your Video Broadcast

High frame rates produce a smooth representation of motion in a video, while low frame rates may cause rough or choppy video broadcasts. Deciding whether or not to go with a higher or lower frame rate depends on what you are broadcasting.

When encoding videos that have a lot of movement, such as sporting events and action movies, it is crucial to make sure that the frame rate is high enough to support smooth playback.

When encoding low movement videos, such as church services, instructional videos and live webcams, you can safely lower the frame rate without sacrificing the quality of the broadcast. For screen capturing or presentations, for example, a 15fps frame rate will still allow you to broadcast a clear stream.

Most encoders (e.g. Windows Media Encoder, Adobe Flash Media Live Encoder) will select the most appropriate frame rate for your video by default. It is generally recommended not to change this setting.