The LKFS standard for television broadcasting is expressed as a negative value.

• A. True
• B. False
• C. It varies by region
• D. It is always 0 LKFS

Answer: (A)

LKFS measures how loud a broadcast program actually sounds by integrating perceived loudness over time with a weighting that matches human hearing, and it’s expressed relative to full scale. Since it’s referenced to 0 dBFS (the maximum digital level), typical programs are well below that ceiling, so their loudness values come out as negative numbers like -23 LKFS. This negative sign is intentional and standard across broadcasting practices to ensure consistent playback levels across channels and devices. While target values can vary slightly by region, the sign remains negative, and it’s not correct to say it’s always 0.