Editors cleaning up noisy interviews, musicians rescuing clipped drum takes, and podcasters taming mouth clicks all reach for this suite. It’s a deep bench of tools, and folks usually have the same few questions before they commit.

Open it standalone or inside your DAW

Both. You can open it like any other program on your Mac and drag files right in, or load individual modules inside a DAW like Logic or Pro Tools. The workflow fits how you like to work.

Can it really separate a messy voice from loud background noise?

Dialogue Isolate and Voice De-noise use machine learning to pick out speech from a tangle of traffic, wind, or room hum. It’s not magic, but on a tough production track it often saves the take.

What if my audio is clipped and distorted?

De-clip looks at the waveform, guesses what the un-clipped signal looked like, and rebuilds it. On a slightly overdriven recording, the result can sound surprisingly clean.

Runs natively on Apple Silicon

Slots into Logic, Pro Tools, Ableton and more

RX doesn’t ask you to rebuild your whole setup. It plugs into most DAWs — Logic, Pro Tools, Ableton Live, Reaper, Cubase, Studio One — as AU, VST3, or AAX. Fire up the standalone app when you want to scrub a file without opening a full session, or drop individual modules right onto a track insert. Same engine, same results.

On the macOS side, it respects Audio Units and ARA, so the spectral editor shows up inside Logic without bouncing back and forth. You can drag audio from Finder straight into the RX window, process it, and drag it back out. Simple as that. If you already use a field recorder app or a video editor like DaVinci Resolve or Final Cut, RX sits nicely as the cleanup step between rough cut and final mix.

One detail that saves time: the Repair Assistant listens to a few seconds of your audio and suggests a chain. You don’t have to agree with it, but when you’re cleaning eight episodes of a podcast before lunch, a sensible starting point makes a difference.

Artifacts creep in when you push too hard

A quiet worry I hear from folks doing dialogue repair is whether the processing leaves artifacts. Short answer: it can, if you push too hard. Spectral De-noise, when you dial it up to eleven, starts to chirp and warble. The trick is to use the learn button on a section of pure noise, then pull the threshold back until the voice sounds natural even if a whisper of room tone remains. A little noise is always less distracting than a robotic warble.

Another common question: will it slow my Mac to a crawl? Spectral analysis is hungry work, but on an M1 or later machine, most operations finish in seconds. Longer files, like a ninety-minute concert recording, take a coffee-break wait at most. Intel Macs from the last few years handle it fine; just don't try batch-processing an entire sample library on a 2015 MacBook Air.

Somebody always asks about De-reverb. It can pull a voice out of a tiled bathroom and make it sound like a treated booth, but it works best on moderate room reflections. A cavernous church recording won't turn into a whisper-quiet studio take, but it will become usable.

Cleaning café clatter from a twenty-minute interview

Say you’ve got a twenty-minute interview recorded in a café. The clatter of cups and an espresso machine hum sit under the guest’s voice. Here’s how a cleanup session might go.

First, open the file in the standalone app. Hit the Repair Assistant and let it listen for ten seconds. It flags broadband noise, some low hum from the fridge, and a handful of mouth clicks on the host’s track. You accept the hum removal and the de-click, but you decide to handle the café noise yourself with Spectral De-noise.

You highlight a short section where nobody is speaking — just the espresso machine and distant chatter. Click Learn, and RX builds a noise profile. Then you select the whole file, lower the threshold gently while monitoring, and stop just before the voice starts to sound processed. The café is still there, but it’s pushed back enough that the words sit front and center.

Next, you spot a moment where the guest leaned into the mic and clipped. A quick pass with De-clip smooths out the squared-off peaks. You check the waveform — it looks round again, and on playback the harsh edge is gone.

Finally, you run Trim Silence to chop out long pauses between questions. You set a threshold of -45 dB and a minimum duration of 1.5 seconds. RX marks the silences, and with one click the interview tightens up by three minutes.

Export as a clean WAV, drop it into your DAW for final editing, and you’re done.

Plug-in missing in your DAW? Force a rescan

First time you open the plug-in in a DAW, it might not show up. Nine times out of ten, the host needs a rescan. In Logic, that means restarting the app and letting the Audio Units manager do its thing. If the standalone app works but the plug-in doesn’t, check that you installed the correct format — AU for Logic, VST3 for Ableton or Cubase, AAX for Pro Tools.

Another head-scratcher: a module processes audio but the result sounds worse than the original. Usually that means the analysis section was too short or too noisy. For De-hum, pick a section where the hum is strong and steady — not a section with dialogue on top. For De-bleed, give it a clean snippet of the source bleeding through, like a hi-hat leaking into a snare mic. Feed the algorithm good input and it returns good output.

Sometimes the standalone app refuses to play audio. Check your Mac’s audio output routing in System Settings — RX uses the system default device. If you’ve got an interface plugged in but the Mac is set to internal speakers, you’ll get silence.

With big sessions, RX can hold a lot of undo steps in memory. If the app starts to feel sluggish, clear the history from the Edit menu. Your processed audio stays, but the RAM frees up.

Yes. Version 12 runs natively on both Intel and Apple silicon Macs, and it also plays nice under Rosetta if you’re still in transition.

Version 12 brings a few tools that long-form editors will appreciate immediately. There’s a new Scene Rebalance module that lets you separate dialogue, music, and effects without needing the original multitrack. Trim Silence speeds up cleaning long interviews, and Stems View lets you apply the whole toolkit to isolated stems. De-bleed and Breath Control got full rebuilds for tighter results.

macOS 14.7 Sonoma or later
Intel or Apple silicon Mac
English interface

iZotope RX 12.0.0 for macOS