New Software Review: “Neutron”, iZotope’s Latest Mixing Plug-in

Unmask your mix with the new “Masking” feature in iZotope’s Neutron — an intuitive way to address competing frequencies within your tracks.

Sometime in the past few years, I’ve noticed what I like to think of as a “third wave” of DAW-based processors emerging.

What started years ago as the promising possibility of plugin-augmented mixing has morphed into a full-scale “console-in-the-box” situation, where mixing entirely within your DAW can finally save time and money without sacrificing anything on a sonic level.

iZotope is at the forefront in imagining up this latest wave of audio tools for both music and post production mixing. Their latest offering is called Neutron, and it provides a new take on the all-in-one channel strip concept—with a few innovative features that can’t yet be found anywhere else. Let’s see what it’s all about.

Overview

Neutron is available only as a plugin for your DAW (no standalone app here), and is compatible with Pro Tools (10-12), Logic Pro X, Ableton Live 9, Cubase Pro 8, Reaper 5, FL Studio 12, Studio One 3 and Nuendo 7. Supported operating systems are Mac OS X 10.9-10.12 and Windows 7-10. Neutron retails for $249, or $349 for the “Advanced” version.

It is a powerful mixing tool that provides advanced EQ, compression, transient shaping, harmonics, and much more, promising to give users a truly complete mixing tool inside one affordable plugin.

As a supplement to this review, I’d suggest that anyone interested Neutron check out iZotope’s website, where you can find detailed video demos of its various features. These videos are extremely helpful in breaking down, both visually and sonically, what this plugin is really all about.

One of my favorite things about iZotope is their dedication to creating comprehensive and informative videos that explain, simply and efficiently, what their plugins can do for you and how you can best make use of their features. Consider it the next-generation version of the refreshingly well-written user manual.

Features and Use

One of the things I like most about Neutron is that it’s simultaneously a very complex plugin, and a very intuitive one. If you’re familiar with other iZotope products—especially the newer versions of Ozone or Alloy—the layout of Neutron should feel very familiar to you.

Neutron is broken up into five basic modules: Equalizer, Compressor 1, Compressor 2, Exciter and Transient Shaper.

Neutron utilizes iZotope’s spectacular hybrid EQs, which allow for switching between Static and Dynamic mode processing. The dynamic mode offers the ability to expand or compress the EQ band based on a set threshold. I wrote about Static vs. Dynamic mode in my review of iZotope’s Final Mix plugin. You can find more on iZotope’s dynamic equalizer here.

One awesome addition to the EQ palette in Neutron is the new “Learn” function which, according to the Neutron manual, “analyzes a signal and places nodes on areas of interest (such as fundamentals, resonances, sibilances, build-ups and more).”

This is a powerful feature that saves time and effort, allowing for automatic location of the most potentially problematic areas of your individual track that require EQ attention.

“Masking” is another breakthrough feature of Neutron’s EQ module that no other plugin company has attempted before, to the best of my knowledge.

But first, what is “masking”? It occurs when the frequency range of two different tracks in your mix are competing with each other, thus blocking—or “masking”—one another in sometimes problematic ways.

To use this Masking feature, you simply add Neutron to both of the offending tracks, label them inside Neutron for easier workflow, and then select the Masking feature in the EQ module. This brings up a live “masking meter” (a heat map of sorts) that shows you where your tracks are competing with each other.

From here, you can either tell Neutron to “learn” where to place its EQ nodes by analyzing your main track and the masked track, or you can dial in your own settings.

One of the most useful aspects of the Masking feature in Neutron is the “Inverse Link” button. Inverse Link does all the work of adjusting the EQ of both of your masked tracks at the same time.

As mentioned in the Neutron manual, “When on, each node’s gain and frequency are linked to the same-numbered node in the other EQ. For example, if you add a 3dB boost in node 4 of the source EQ, you’ll cut 3dB in node 4 of the target EQ below it.”

A closer look at Neutron’s EQ, which features the unique ability to switch between “Static” and “Dyanmic” mode processing, along with iZotope’s powerful “Learn”, “Masking”, and “Inverse Link” functions.

This is truly one of those “How did they do that?” features.

Certainly, some experimentation is needed to find which direction you want to go, and it’s also worth mentioning that very little goes a long way with Inverse Link, since you are effectively doubling the dB level of each boost or cut you make. And of course, there will be times when you’ll simply want to use the Masking heat map as a guide to make EQ cuts on one track without boosts on the other.

To me, the Masking feature of Neutron is worth the price of admission alone. You can learn much more about the Masking feature and hear it in action here.

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