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Avid Color Correction for Broadcast legal pedestal (black) values

Avid Color Correction for Broadcast legal pedestal (black) values

Have you ever noticed when you watch certain programs that some look washed out while the very next show has vibrant colors with deep blues and blacks and crisp whites. Well, if you are assembling a program that is going to be broadcast then you need to pay special attention to your scopes within the Avid Color correction tool. Some of you might have heard the term I.R.E. levels. The pedestal black is the 7.5 I.R.E. value and the peak whites are100 I.R.E. The Color correction tool allows you to clip the lows off at 7.5 and 100 I.R.E. The YC waveform and the Y waveform will show these luminance values. The one often-overlooked value is the pedestal black. This is the lowest value allowed by broadcast television. avid_clr_corr_cntrls.gif
Under the H.S.L. controls you will see a Avid shows that 16 for the low gives you 7.5 on your blacks but when you output to an external scope or a plug-in scope they will show that 16 in the Avid color correction tool is actually a 0 I.R.E. So, if you set your clip low level to 32 you can rest assured you are within safe limits for your broadcast program. The attached article is an excellent example of how to attack the legal limits, just make sure that you substitute a value of 32 for the clip low instead of 16 and your program will be as rich and colorful as you see in your Avid when it reaches broadcast television.

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