Broadcast Engineer's Reference Book

Peter BruceMarketing Manager, Production Mixers Thomson Grass Valley

4.5 Mixers and Switchers

 

 

Production switchers have benefited greatly since the early 1990s from digitisation. Analogue vision mixers suffered heavily with the requirement of many adjustments through the whole signal process. Analogue drifting was inevitable through the production mixer. If invisible effects were required critical adjustments were essential for luminance timing, gain, dc levels, horizontal and sc phase of all inputs, Mix Effect banks, keys, internal colour mattes, etc. Additionally, since the advent of digital production mixers tedious alignment of wipe generators is now a thing of the past. Present-day digital mixers have by nature no signal alignment ...