Mouth De-Click — setup & help

Open the DMG you downloaded and double-click Greenlit Mouth De-Click.pkg. The installer walks you through it and asks for your Mac password once — that's macOS confirming you want to install for everyone on the computer. Nothing to drag, and no folders to find.

It installs both formats at once, so it works whichever your DAW uses: the AU for Logic Pro, GarageBand and TwistedWave, and the VST3 for Reaper, Audacity and others. You don't need to know which one you need.

Then rescan plug-ins in your DAW so it picks up the new plugin:

Logic Pro / GarageBand:it rescans on next launch — quit and reopen it. If the plugin still isn't listed, open Logic's Plug-In Manager and hit Reset & Rescan.

Reaper: Options → Preferences → VST → Re-scan.

Audacity: Effect → Plugin Manager → set Show to All → Rescan, then select the plugin and click Enable if it lists as Disabled — Audacity finds new plugins but leaves them switched off until you enable them.

Upgrading from an earlier version?The installer removes the old copy you dragged in by hand, so the plugin won't show up twice. Quit your DAW before installing — a host holding the old plugin open can keep it from being replaced.

Run the installer and approve the Windows permission prompt — it places the plugin in C:\Program Files\Common Files\VST3, the standard folder every VST3 host checks. Then rescan plug-ins in your DAW (Audacity: Effect → Plugin Manager → set Show to All → Rescan, then enable it if it lists as Disabled).

Installed with an older version and Audacity can't see the plugin? Earlier builds installed to a per-user folder that Audacity doesn't scan. Re-run the current installer and it moves itself to the right place.

Antivirus flagged the download? It's a false positive — here's the proof.

Only needed if you bought Pro. The free plugin never asks for a key — it works exactly as it always has.

1. Copy your key.It's in your purchase email, and it's permanently on your account page — open that and click Copy key. The key is long, so copying the whole thing matters; use the button if you can.

2. Open the plugin on any track in your DAW.

3. Click either greyed-out slider — Frequency or Widen. That opens the activation panel, headed ENTER YOUR LICENCE KEY. (The small padlock in the header is a marker, not a button.)

4. Paste the key and click Activate.Line breaks and spaces picked up from your email don't matter — the plugin ignores them.

You'll see it straight away: the name at the top gains “Pro”, the padlock disappears, Frequency and Widen come to life, and the spectral view stays live instead of freezing.

You only do this once per computer.The key is saved on the machine, so every host you load the plugin in is already activated. It isn't tied to that machine either — install on as many of your own computers as you use and paste the same key into each. Once activated, a Remove licence link appears at the bottom of the plugin if you ever need it.

If Activate shows a message instead of unlocking, it's about the key text, not your purchase — a partial copy is the usual cause. Copy it again from your account page and paste it fresh. Lost the email? The key is always on that page, and it never expires.

Sensitivity (0–10).How aggressively clicks are detected. The 4.0 default is the calibrated setting Greenlit's own mastering pipeline uses — start there. Double-click the slider to return to it. Higher catches softer clicks; lower keeps only the most obvious repairs.

Listen.Plays only what's being removed, so you can audition a setting. The plugin frames itself red while Listen is on — don't bounce with it on; that render is the removed clicks, not your narration.

Bypass.True passthrough — audio is untouched while it's lit.

The repairs counter.Counts repairs made since you last hit play, and holds the total when the transport stops. In hosts that don't report transport, it counts continuously. Surprised how high it reads? That's normal — see the next section.

Waveform toggle (0.3.0).Shows or hides the spectral display at the top of the window — the window shrinks when it's off. Purely visual; de-clicking runs the same either way.

Frequency & Widen Repair (0.3.0). These two sliders tune the repair to your voice and are part of Mouth De-Click Pro. In the free plugin they show locked at the calibrated defaults — the same certified repair as always, nothing removed and nothing time-limited. The free plugin isn't going anywhere: it always works, exactly as it did.

The spectral view (0.3.0). A live 3D view of your audio as it plays, with the clicks the engine repairs marked in it. Free installs get a live look for 30 seconds of playback each time the editor opens, then the view freezes — Pro keeps it live. The de-clicking itself always runs, on every tier, whether the view is live, frozen, or hidden.

Because most mouth clicks are tiny. Close-mic'd narration produces a near-constant stream of small mouth noises — a few every second of speech is typical — and almost all of them are too quiet to hear on their own. The counter reports every repair the engine makes, including all of those shallow ones, so a full chapter can honestly show thousands of repairs.

A big number doesn't mean your recording is in trouble, and it isn't how many clicks a listener would have heard — the audible ones are a small fraction of the total. It just means the plugin is catching the small stuff too. If you'd rather repair only the obvious clicks, lower Sensitivity and the count drops with it.

The plugin reports its full delay — 400 ms — to your DAW, which shifts everything automatically so tracks stay aligned. You'll notice it when soloing the plugin on a live input, not in normal editing or mixing. Offline bounces always render complete.

Logic's Low Latency Modebypasses high-latency plugins by design — this one included. Turn Low Latency Mode off for editing and bouncing; use it only while tracking, when the plugin doesn't need to be in the path anyway.

44.1 kHz natively; 48 and 88.2 kHz sessions are supported. Anywhere else — 96 kHz, or below 44.1 kHz — the plugin runs dry and says so on its face, so switch the session to 44.1 kHz to process.

The reason is repair accuracy, not effort. At 44.1 kHz the plugin repairs in its own domain. At other rates it has to convert your audio in and its repairs back out, and a mouth click is short enough that the repair has to line up to a fraction of a sample or it stops removing the click and starts adding to it. At 48 and 88.2 kHz that alignment lands where it needs to. At 96 kHz it doesn't, so the plugin runs dry there instead.

In Audacity you can run the plugin in realtime, or apply it to a selection from the Effect menu. Applying it takes real time to run — roughly half the length of what you selected, so a chapter is a few minutes, not a few seconds. Audacity doesn't show progress while the plugin works, so it can look like nothing is happening.

The first couple of seconds of a selection come back unrepaired — the plugin needs about that long to tell an offline apply apart from realtime playback. Start your selection a little earlier than the click you're fixing, or apply it to the whole chapter.

If you used it this way before 0.3.1 and it came back almost instantly, that version wasn't repairing the selection — it returned your audio unchanged. Download the current version and apply it again. Realtime playback was unaffected.

Plugin doesn't appear after install: rescan plug-ins in your DAW, and confirm the file landed in the matching user folder above (not the system one) — .component for AU, .vst3 for VST3.

Rolling back from 0.3.0:sessions saved with 0.3.0 store the plugin's settings in a new format. If you reinstall 0.2.4, those sessions load with default settings — your audio is untouched.

Intel Arc GPUs:at fractional display scaling (e.g. 125%), Audacity can show a one-pixel light line at the top of the spectral view. It's cosmetic and driver-side — de-clicking is unaffected.

Still stuck? Contact support — include your DAW and OS version.