Spectral centroid

The spectral centroid is the "center of gravity" of your mix's frequency content. A low centroid means most energy is in the lows — common in dark mixes. A high centroid means lots of high-frequency content — common in bright or harsh mixes.

PRISM compares your centroid to the expected range for your BPM profile. House and techno mixes typically want a centroid above 2000 Hz. Hip-hop can go as low as 1200 Hz.

The dark mix fix

Add a high shelf (+1 to +2 dB at 8–10 kHz) on the master. Or boost the air band (12–16 kHz) slightly. Check that your hi-hats and cymbals aren't being high-pass filtered too aggressively.

The harsh mix fix

A dynamic EQ or de-esser targeting 3–8 kHz is usually the answer. Look for harshness between 3–5 kHz (presence range) and sibilance between 6–9 kHz. Cut with a wide bell, not a shelf.

PRISM detected Your spectral centroid is outside the expected range for your genre. The specific frequency region and correction direction are in the action plan.
RECOMMENDED TOOLS

To fix this frequency problem, here are the tools PRISM producers reach for most — each picked for this specific case, not a generic list.

Soundtoys Sie-Q →
Musical analog-style EQ — perfect for gentle air and presence boosts
Waves F6 Dynamic EQ →
Dynamic EQ for taming harshness only when it peaks