FACTOID # 70: In pure number terms, more crimes are committed in America than in any other nation. The same goes for burglaries, car thefts, rapes and assaults.
 
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Encyclopedia > Statistical multiplexer

A Statistical Multiplexer allows broadcasters to change the bitrate of channels according to the channels needs. For example, A broadcaster is showing news on Channel 1 and football on Channel 2. With fixed multiplexing each channel has (say) 2 mbit per channel. The news channel is fine - no movement requires very little bandwidth. The football channel however begins to suffer as fast movement and crowd shots require large bandwidth to produce a clear picture.


A Statistical Multiplexer (stat-mux) allows the broadcaster to allocate bandwidth to wherever it is needed. Thus 0.5 mbits are allocated to the news amd 3.5mbits to the football. This results in good a quality picture for both channels.


  Results from FactBites:
 
Planar: LCD (Liquid Crystal Display) technology explained (1457 words)
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Statistical multiplexing - Wikipedia, the free encyclopedia (344 words)
Statistical multiplexing is a type of time-domain multiplexing for transferring several data streams with varying data rates over a digital channel.
Statistical multiplexing allows the bandwidth to be divided arbitrarily among a variable number of channels (while the number of channels and the channel data rate are fixed in TDM).
Statistical multiplexing is used to allow several video, audio and data streams of different data rates to be transmitted over a bandwidth-limited channel (see Statistical multiplexer).
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