7. Encoding for Delivery

Digital video comes in many resolutions and frame rates; Digital Betacam, MP4 video phones, mini-DV, HDV, DVD and so on. One universal measure of these different formats is Bit Rate (also known as ‘bitrate’). Bitrate is the number of bits (units of data) processed per unit of time. When dealing with Video or Audio signals, bitrate refers to the number of bits used per second (after coding or compression) to represent the images and/or sound over a continuous period and corresponds to the signal’s ‘bandwidth . . .

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