glossary
Upward compression makes quiet details louder while leaving louder peaks more intact.
Upward compression increases gain for material below a chosen range or threshold. Instead of pushing peaks down, it brings quieter details, sustain, room, or breath forward.
The result can feel denser and more present without the same peak flattening as heavy downward compression.
Raising quiet material can reveal headphone bleed, room tone, edits, breaths, and noise floor. That can be useful on drums or ambience, but distracting on exposed vocals.
Parallel compression often creates a similar effect by blending a heavily compressed signal under the original.
Upward compression may raise integrated or short-term loudness while peak level changes very little. That makes it easy to overdo if you judge only by peak meters.
Meter Core keeps loudness and peak behavior visible so added density stays intentional.