Error Code:
Sub-Black Levels
Description:
“Sub-Black Levels” can be used to describe measured setup video level falling below baseline.
Impact:
Sub-Black levels impact the Technical and Content Quality of the asset. Member experience is negatively affected by color that appears unnatural or misrepresented. Sub-black levels may also indicate a Full/Legal range conversion issue.
Severity Structure:
|
FYI |
N/A |
|
Issue |
Black levels dip below baseline 700mV (SDR) or 0 nits (HDR). |
How to Prevent:
Monitor levels using waveform scopes.
Solution:
Any sub-black levels must be adjusted to at least baseline, as this is most likely a Full/ Legal range conversion issue.