Broadcast safe
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Broadcast safe is a Utility effect.
What it does
Section titled “What it does”Measures the broadcast signal peak for every pixel. It can then pull pixels back to legal values, or display which pixels aren’t legal.
Parameters
Section titled “Parameters”| Parameter | Control | Range | Default | Unit |
|---|---|---|---|---|
| Standard | Dropdown | NTSC · PAL | NTSC | - |
| How to treat | Dropdown | Reduce brightness · Reduce saturation · Key out unsafe · Key out safe | Reduce brightness | - |
| Maximum signal | Slider | 90 to 120 | 110 | - |
| Mix | Slider | 0 to 100 | 100 | Per cent |
| Blend | Dropdown | Normal · Darken · Multiply · Colour burn · Linear burn · Darker colour · Add · Lighten · Screen · Colour dodge · Lighter colour · Overlay · Soft light · Hard light · Linear light · Vivid light · Pin light · Hard mix · Difference · Exclusion · Subtract · Divide · Hue · Saturation · Colour · Luminosity | Normal | - |
| Matte | Layer | Any layer in the composition | None | - |
| Invert | Checkbox | On or off | Off | - |
| Channel | Dropdown | Luminance · Alpha · Red · Green · Blue | Luminance | - |
In the Effect Controls panel:
- Matte is an input to an effect, scaling the strength. Invert inverts the mattes for calculating strength.
What each control does
Section titled “What each control does”- Standard: which television system’s signal is being measured.
- How to treat: what happens to a pixel that is over the limit.
- Reduce brightness darkens until it fits, keeping colour.
- Reduce saturation drains colour until it fits, keeping brightness.
- Key out unsafe removes illegal pixels and leaves transparent holes.
- Key out safe removes legal ones, leaving only illegal pixels.
- Maximum signal: the largest total allowed, in IRE.
- Mix: how much of the result replaces the original.
- Matte and Invert drive the strength of the effect from another layer’s brightness; see Effects.