Free Download — AU + VST3 for macOS

Your mix looks fine on every meter.
Does it translate?

Meter Core is a free master-bus meter that goes past LUFS and true peak: it scores your mix against commercial-reference calibration — Side Air, Centre Weight, Punch Reserve, Low Width Risk, Push Damage — and its Track Pass mode audits a full playback into one verdict: PASS, WATCH, or PUSHED.

Download Meter Core — Free · macOS

Free, no signup. Or get the link by email + launch updates (optional):

Cyan = chain stage levels  |  Green = stereo balance
The Problem

Meters that say "fine" on mixes that fall apart next to commercial tracks.

LUFS in range. True peak under. RMS healthy. And the mix still sounds small next to a reference — thin sides, soft punch, low end that smears on anything but your monitors. Conventional meters measure level. They don't measure translation.

Meter Core scores the things that actually break a mix: stereo air in the sides, weight in the centre, punch held in reserve, low-end width risk, push damage. Each index is calibrated against commercial references, and the built-in Guide explains every one in plain English.

Then Track Pass watches your whole song play end to end — averages, worst cases, weak sections — and hands you one honest verdict instead of needles to stare at.

Features

Metering built for chain-aware mixing.

📊

Translation Indices

Side Air, Centre Weight, Forward Mid, Punch Reserve, Silk Ratio, Low Width Risk, Push Damage — calibrated against commercial references, not arbitrary targets.

🔀

M/S & Correlation View

Monitor mid/side balance and stereo correlation in real time. Catch mono problems and width drift before they reach mastering.

📏

Loudness & Headroom

Integrated loudness, true peak, and crest factor readouts tuned for pre-limiter staging — not just VU nostalgia.

✅

Track Pass Verdict

Arm it, play your song once, get one answer: PASS, WATCH, or PUSHED — with averages, worst cases, and where the trouble lives.

Lab Verified

The reference panel. Built for the chain it watches.

Meter Core is a calibrated reference panel — VU, true-peak, integrated loudness, M/S balance, and correlation, all in one view. The same metering used to validate AutoFactory's own mixes, now sitting on your master where you can see everything happening at once.

The Plugin
Meter Core interface with VU and analysis panels
Twin VU meters in classic analog style. Real-time loudness category badge ("ACCEPTABLE", "LOUD", "QUIET" — tuned to broadcast and streaming targets). Below: precision M/S, peak, RMS, correlation, and crest readouts. One panel, the whole story.
What it means: You can't fix what you can't see. Meter Core makes your mix visible — every stage of the chain, every meter you actually need, in one panel that sits on the master and never lies to you.
Mixed with Meter Core: a recent We Are The Horsemen release was picked up and played by Gilles Peterson on BBC Radio 6.
Meter Core is built for chain-aware mixing — every stage of your signal path, read on one master-bus panel.

Get Meter Core. Free.

AU + VST3 for macOS, notarized — download free, no signup needed.

Download Meter Core — Free · macOS

Or get the link by email + launch updates (optional):

No spam. Ever.

Meter Core is a complete, fully-functional free tool — built and calibrated by AutoFactory Audio, and free for good.

On Windows?

Meter Core is macOS-first. Windows is coming — leave your email and you'll know the day it lands.