Meter Core

Meter Core is a free master-bus metering plugin for AU and VST3 hosts (macOS 10.15+, universal binary for Intel and Apple Silicon). Alongside conventional readouts — LUFS, true peak, RMS, crest factor, headroom — it surfaces a set of mix-quality indices calibrated against commercial references: Side Air, Centre Weight, Forward Mid, Punch Reserve, Silk Ratio, Low Width Risk, Push Damage, and a Translation verdict.

A TARGET switch (OFF / STREAM / CLUB) moves the verdict bands to match where the mix is headed — the measurements never change, only what counts as healthy for the destination. The Track Pass feature accumulates averages, min/max and worst-case values across a full end-to-end playback and reports an overall track health summary (PASS / WATCH / PUSHED), so you can audit a whole mix in one pass rather than watching needles in real time. Analysis sessions export to CSV. A built-in Guide tab explains each index in plain English.

Free download from autofactory.ai/meter-core.