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Chapter 11. Standard Effects in Action > Using Broadcast Colors

Using Broadcast Colors

You'll use the Broadcast Colors effect to change the brightness and saturation levels of images to ensure that they comply with video standards. See the sidebar “Illegal and Dangerous, or Do You Know Where Your Levels Are?” on the next page for some technical grounding.

To use the Broadcast Colors effect:

1.
Select a layer.

To apply the effect to multiple layers, use an adjustment layer.

2.
Choose Effect > Video > Broadcast Colors (Figure 11.81).

Figure 11.81. Choose Effect > Video > Broadcast Colors.


The Broadcast Colors effect appears selected in the Effect Controls window (Figure 11.82).

Figure 11.82. The Broadcast Colors effect appears selected in the Effect Controls window.


3.
Choose a standard from the Broadcast Locale pull-down menu (Figure 11.83):

NTSC is the video standard used in North America and Japan.

PAL is the video standard common in many countries outside North America.

Figure 11.83. Choose a standard in the Broadcast Locale pull-down menu.


4.
Choose a method to correct the levels in the How to Make Color Safe pull-down menu (Figure 11.84):

Reduce Luminance corrects unsafe levels by shifting luminance toward black.

Reduce Saturation corrects unsafe levels by shifting colors toward a grayscale value of a similar brightness (the default setting).

Key Out Unsafe identifies unsafe areas by making them transparent.

Key Out Safe identifies unsafe areas by making all other areas transparent.

Figure 11.84. Choose a method to correct the levels in the How to Make Color Safe pull-down menu.


5.
Set the Maximum Signal Amplitude.

The maximum setting is 120; however, the default setting is a more cautious 110 IRE.


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