Noise reduction can a be crucial part of music production.

Wavasour is a feature rich audio editor, and is a very good free software to reduce noise from audio. Noise reduction is not a native feature on this software, however you can reduce noise from audio with the help of a plugin. The plugin is known as ReaFIR VST plugin. I don't have it and haven't demoed it, but that is a common copy protection, a noise such as static will go off every so often, put in place by some developers on their demos. On audacity, you need a clean, extended recording ( I have heard suggestions of as long as 10 second) of the crowd noise for the noise remover to be at all effective. If the crowd noise is centered in the panning of the recording, the Audacity vocal remover effect might help?

In a perfect world, we’d have noiseless and buzzless audio signals galore. But if you’re sampling vinyl, or are forced to record in less than stellar environment, you need something in your audio toolkit that’s got your back.

So in this guide we’ll take a look at some of the best noise reduction plugin software for music producers on the market.

Quick answer: iZotope RX 7 is the top choice for sure.

But if you want something for quick and easy noise reduction, that’s easier on the budget, take a look at ERA Bundle by Accusonus and Waves Z-Noise.

The rest of this guide will look at these and other plugins more in depth, so you’ll be able to make the right choice for what you need.

Let’s take a closer look 🙂

Table of Contents

  • Noise Reduction Plug-In Buying Guide

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Noise Reduction Plug-In Buying Guide

What is a Noise Reduction Plug-in?

Like the name suggests, noise reduction plug-ins essentially reduce or eliminate noise from audio material. They do this by using different algorithms and modeled circuitry. These software tools, like the one we’re about to talk about, eliminate things that you’d rather not have in your music production, like background noises, electrical interference, ground buzzes, clicks, hums, and crackles from the source audio.

How Noise Reduction Plug-ins Work

Noise reduction circuits employ different methods for eliminating noise. Here are some of what they include:

  • Spectral noise gating or Fourier analysis – This detects the spectrum of tones that comprise the background noise and reduces their volume levels.
  • Manual threshold setting – This sets the threshold for each individual band and reduces their level independently. Meaning, if a sound is below the a certain threshold (like environmental sounds), then it will be cut out during the “silent” portions of a recording.
  • Graphical noise reducers – Samples the noise profile and creates a frequency-dependent threshold that varies across the harmonic spectrum. Provides control over multiple variables.
  • Spectral analysis – Breaks up sound into different frequency ranges, allowing the removal of specific bands.

Features to Look for in a Noise Reduction Plug-in

As with all plug-ins that have the potential to significantly affect the quality of the sound, transparency is one of the most desirable properties to look for in a noise reduction plug-in.

Although you want your plug-in to effectively remove the noise—or at least reduce it to such a degree that it is no longer apparent—you don’t want to compromise the overall quality of the audio.

Low-latency is also a must as noise reduction is a very CPU-intensive process. When applying noise reduction to several tracks of audio, you might find that some of them will lag as your CPU struggles to cope with the load. This can lead to phasing, loss of sync, and other issues.

Sufficient control over the various parameters is also a good quality to have in a noise reduction plug-in. However, don’t discount the benefits provided by automation, particularly with regard to identifying and detecting noise prints. In some cases, the auto-detect circuitry of a good noise reduction plug-in can be far more effective at pinpointing noise than your ears.

Choosing the Best Noise Reduction Plugin for Music Production

When choosing a noise reduction plugin, a good rule of thumb is to decide on one that offers a good balance between ease of use and control.

/best-vst-plugin-for-sibelius.html. Although you will want the ability to get under the hood and tweak the various settings to your content…

…. there will be times when you simply want to “set-and-forget” the controls. Y

ou should therefore choose a great sounding noise reduction plug-in that allows you to get as detailed or as simple as you need.

With that same, let’s take a look at some of our options.

7 Best Noise Reduction Plugins to Use

iZotope RX 7

Upon its release, iZotope’s RX 6 – the previous version – was widely lauded for its ability to clean up even the most troublesome recordings. Used by everyone from bedroom producers to industry professionals, it quickly achieved a reputation for solving audio problems that other software solutions simply couldn’t touch.

With RX 7, iZotope’s RX 7 once again proves that it is at the forefront of audio repair, with a host of new features that greatly expand the suite’s capabilities.

Specs and useful features
  • Repair Assistant intelligently detects noise, clipping, clicks, hum, and other audio anomalies
  • Music Rebalance effectively isolates individual elements of a track for precision enhancement
  • Variable Time and Pitch enables the alteration of pitch without affecting audio timing, and vice versa
  • Dialogue Contour improves pitch, performance, and intonation of spoken dialogue
  • Dialogue De-Reverb reduces reverberations in dialogue tracks
  • Multichannel support
  • Enhanced UI
User impressions

Just like RX 6 before it, iZotope RX 7 is widely considered to be the most powerful and versatile audio repair and restoration tool around. More than just a solution for cleaning up noise, users have found it amazingly effective for getting rid of most anomalies in recorded audio.

RX 7’s users range from bedroom hobbyists to studio owners, and even industry professionals. The versatility of this software suite is such that it can be used for a multitude of tasks of any size. Even with its sheer power and versatility, its ease of use makes it the noise reduction and repair tool of choice for many users.

Bottom-line

iZotope RX 7 is by far one of the most flexible and all-out powerful solutions for restoring and repairing audio. More than just a noise reduction plug-in, it is a comprehensive suite of precision tools that can pretty much fix whatever ails your audio. Whether for individual tracks or completed mixes, iZotope RX 7 will definitely give you quality results.

Demonstration

Sonnox Oxford DeNoiser

“Surgically-precise” noise reduction is what the Sonnox Oxford DeNoiser specializes in, and there not that many tools better than this in that arena. It has a lot of useful features that enable you to clean up even the most problematic audio, like an integrated de-hisser, continual input analysis, and even a Freeze Mode that samples chunks of audio containing just noise.

The Oxford DeNoiser is also capable of preserving the quality of the original recording with a useful post-processing “Warmth” control.

Specs and useful features
  • Separate sections for de-hissing, noise detection, and noise removal
  • High-resolution display of input signal and noise profile
  • Frequency bias curve allows for the fine-tuning of noise threshold and reduction
  • Mid-side mode
  • Warmth control for restoring audio warmth after processing
  • Make-up gain facilitates A/B comparison
User impressions

Most users agree that the Sonnox Oxford DeNoiser packs a lot of bunch a slick and easy-to-use package. The plug-in’s ability to automatically adapt to a varying noise floor is one of its most useful features, although it is possible to set the bias for the detected noise curve to a precise degree.

One other feature that many users appreciate is the “Warmth” control that sweetens the sound after processing. Overall, the Oxford DeNoiser seems to have made a favorable impression, although some users advise using it in moderation in order to avoid introducing unwanted sonic artifacts.

Bottom-line

Sonnox’s track record of producing outstanding plug-ins at reasonable prices is well known, and the company upholds that tradition admirably in the Oxford DeNoiser. Offering the ability to get as simple or as detailed as you like, the DeNoiser is just as capable of delivering quality results quickly as it is at allowing more intensive tweaking and parameter fine-tuning.

Demonstration

Waves W43 Noise Reduction Plug-in

The Waves W43 draws inspiration from the legendary hardware noise reduction unit, the Dolby Cat43, a classic film processor noise reduction from the 1970’s. Like its predecessor, you can expect professional results from the W43 in a highly intuitive user interface.

Of course, a host of modern features is also provided, enabling you to target and eliminate noise to a remarkably precise degree.

The W43 is part of the Waves suite of “Intelligent” plug-ins, which utilize DSP in order to differentiate noise from the audio signal.

Free Vst Noise Removal

In the case of the W43, the threshold can be set independently for multiple bands, giving you total control over the noise reduction process.

Specs and useful features
  • Affordably-priced
  • Easy to use
  • Zero latency
  • Multiple instances possible
  • 24-bit/192kHz resolution
User impressions

The Waves W43 is especially lauded for its four fixed frequency bands that provide a good range of noise reduction options. Many users feel that the plug-in is a worthy successor to the hardware unit that inspired it, citing the Waves W43’s high-quality noise reduction capabilities.

Bottom-line

Of all the noise reduction plug-ins available under the Waves banner, the W43 may be the one that provides the most bang-for-the-buck. Now that it is priced more reasonably, adding it to your studio toolkit is practically a no-brainer. For the money, you get a very versatile and great-sounding noise reduction plug-in that comes with a host of useful features.

Antares SoundSoap 5

Antares SoundSoap is a standalone app and a plug-in that works in a variety of hosts. Originally manufactured by BIAS, it has since been made part of the Antares line of audio processing tools, which include the notorious “Auto-tune.”

Now in its fifth iteration, SoundSoap has garnered considerable praise for its simplicity and high-quality results.

Specs and useful features
  • Improved hum removal algorithm
  • Audio metering
  • Automatic noise detection*
  • Ability to set noise location*
  • Video waveform display *
  • Enhanced media controls*
  • Support for FLAC and MP3*
  • Full bypass facilitates A/B comparison*
  • Reset control*

Vst Plugin Remove Background Noise Without

*Standalone only

User impressions

A common thread in user reviews of the SoundSoap 5 is how easy and straightforward it is to use. Users report being pleasantly surprised at how effective the plug-in is at eliminating noise, even with a seemingly modest set of controls.

Unfortunately, although SoundSoap 5 is a pretty capable noise reduction plug-in by most accounts, the fact that most of its best features are available only in the standalone app limits its usability somewhat.

Bottom-line

Antares SoundSoap 5 is a pretty impressive plug-in that suffers from one serious flaw: most of its best features are available only in standalone mode. This really is lamentable, as noise reduction is generally better applied to individual tracks and stems rather than entire mixes. If not for this misstep, the excellent algorithms and precise control provided would warrant a more favorable ranking.

Demonstration

Waves Z-Noise

Z-Noise is only one of the many noise reduction plug-ins marketed under the Waves banner. Boasting of a new proprietary algorithm, this one aims to eliminate background noise from recordings without inducing artifacts or compromising audio quality.

Part of the Waves “manual” plug-ins collection, Z-Noise requires you to specify the noise print to be targeted, after which you can hone in on the offending frequencies with the threshold and band controls.

  • Specs and useful features
  • Improved “musical” algorithm
  • Dynamic noise profiling
  • 5-band EQ
  • Extract mode for creating noise profile from any audio
  • Real-time operation
  • Preserves low frequencies
  • Improves high frequency detail
  • Reduced time domain sensitivity eliminates “smearing”
  • True broadband processing
User impressions

Most reviewers of the Waves Z-Noise mention the plug-in’s ability to reduce noise while retaining high-end detail and low-end clarity. The absence of “smearing” is definitely one of the plug-in’s biggest strengths, and many users appreciate the ability to eliminate noise without reducing the punchiness of the source audio.

That being said, some users did feel that the Z-Noise isn’t quite as effective as other plug-ins in terms of eliminating more severe noise.

Bottom-line

Waves Z-Noise is quite a capable and versatile solution to most noise reduction needs. It isn’t quite as easy to use as other plug-ins in the Waves lineup, although that comes as no surprise given its extensive features and capabilities. And although it isn’t as effective as removing noise as other more recent offerings, it does provide excellent value for the money.

Demonstration

Free Vst Noise Gate Plugin

Accusonus ERA Bundle

The Accusonus ERA Bundle is a set of audio restoration plug-ins that includes the ERA-N, feature in our article on audio restoration and enhancement.

Well this is the noise reduction plug-in of the bunch, providing you with the ability to reduce noise via a single knob control, which is pretty unique. The ERA-N actually provides a surprising amount of flexibility even with its modest controls, with the automatic noise profile estimation especially useful at pinpointing problem areas. Used in conjunction with the five frequency presets, the ERA-N is quite effective at removing noise in different frequency ranges.

The bundle also includes the ERA-D, which provides “intelligent” noise reduction capabilities in a dual-channel configuration, along with the reverb reduction features of the ERA-R.

Specs and useful features
  • Enhanced de-noise algorithm
  • Five spectral presets for focusing on specific frequency bands
  • Automatic noise profile estimation
  • Single knob noise reduction
User impressions

Ease of use and simplicity seem to be the biggest draws of the Accusonus ERA Bundle, going by the overall tone of the user reviews of the plug-in. Users especially seem to appreciate the modest-yet-effective set of controls that consist only of a single knob and a couple of settings.

Although it may be too simple for those that require more control over certain parameters, users generally agree that the ERA Bundle makes it possible to get great results quickly.

Bottom-line

The Accusonus ERA Bundle is a surprisingly capable set of noise reduction plug-ins that gives you get great results with minimal effort. Although there are lower-priced solutions that provide results of comparable quality, there is no denying the ease of use and simplicity of these plug-ins.

Demonstration

Waves NS1 Noise Suppressor

Also part of the Waves “Intelligent” range of plug-ins, the Waves NS1 Noise Suppressor is equally at home in the studio and on stage. Those that don’t want to bother with the extensive controls of other noise reduction plug-ins will definitely appreciate the single-fader interface of the NS1, as it provides all the control needed for most basic tasks.

Despite its simplicity and modest features, the NS1 is quite effective at removing noise without causing warbling, unwanted modulation, or other artifacts. It also imparts no latency whatsoever, allowing you to patch it into any audio track without having to worry about losing sync.

Free Vst Plugins Download

Specs and useful features
  • Simple-yet-effective noise-reduction
  • Intuitive single-fader design
  • Attenuation gauge for monitoring noise removal
  • Suitable for cleaning up audio from a wide variety of sources
User impressions

“Simplicity” is also a common thread in many user reviews of the Waves NS1, with the single fader interface garnering praise for its effectiveness and ease of use. Users report simply being able to turn the fader up to just before the artifacts set in, easing back a bit, and getting acceptable results. Like even the most fully-featured plug-ins however, subtlety is key in using the Waves NS1 to maximum benefit.

Bottom-line

As far as noise reduction plug-ins go, the Waves NS1 Noise Suppressor is about as simple as they come. Although it has only a single fader, it still manages to deliver performance that equals–and even surpasses–that of its higher-priced counterparts.

Demonstration

Final thoughts – Which to Get?

The iZotope RX 6 is truly the Big Daddy of audio restoration tools, and its noise reduction components meet the highest standards for usability, flexibility, convenience, ease of use, and sound. In fact, this could very well be the only noise reduction plug-in worthy of discussion, if not for the excellent qualities of the other plug-ins in this roundup.

Tied for a close second are the Waves W43 and the Sonnox Oxford DeNoiser, which both provide excellent bang-for-the-buck. Even though these don’t come close to the features and functionalities of the iZotope RX 6 suite, they are definitely deserving of a place in any studio.

Special mention has to be made of the Antares SoundSoap 5, which is a pretty serious piece of noise reduction technology. As impressive as it is however, the fact that most of its best features are available only in the standalone app forces us to shave a few points off its final score.

As for the Waves Z-Noise and the Waves NS1 Noise Suppressor, these definitely aren’t slouches by any means. Even though they have both been surpassed by more recent offerings, they could still be of some use for general noise reduction tasks where surgical control isn’t absolutely necessary.

Microphones unlike webcams are one of those things that are a must have for anyone streaming on Twitch. In fact in the world of streaming audio is the most important factor when it comes to stream audio. Sure, Twitch has emotes and bits and fancy overlays, regardless, audio is still king when talking about perceived Twitch stream quality.

Like many of those who stream I currently use a mic that likes to pick up background noise from my computer fans and the washer as well as people in the background. The real question is how do you get rid of that? That's exactly what I am about to show you. The good news is that in just a few minutes your Twitch stream audio can sound 1000x better, even with an inexpensive mic.

There are two things that you will need in order to follow along with this tutorial. The first is OBS. This method has not been tested with anything other than OBS Studio and at the time of this article the current major version is 26. Using what is done in this tutorial with something like Stream Labs OBS may work but it is not guaranteed. You can download OBS from https://obsproject.com/.

The second program we need is ReaPlugs VST FX Suite. ReaPlugs VST FX Suite is the application that we will use in conjunction with OBS to remove the background noise and static from our microphone. The best thing about both of these programs are that they are completely free! You can download ReaPlugs VST FX Suite from https://www.reaper.fm/reaplugs/.

Now with both of the programs that are required installed we can get onto removing the background noise and static from your microphone. First thing that you need to do is open up OBS. Once you have OBS running head to the 'Audio Mixer' and click the cog that is next to your microphone and then click filters.

Once your on the filter screen click the '+' button in the lower left corner and select 'VST 2.x Plug-in' from the menu. We select this option because ReaPlugs VST FX Suite is a suite of VST plugins that we can use to better control the quality of the microphone audio on our stream.

You can name the filter whatever you want when the 'Filter name' screen is shown. In general you may want to name it something that is easy to remember like 'Mic Static Fix' or similar. Click OK and you should be presented with a new screen where we will setup our filter so that we can begin removing static noise from our Twitch stream.

On the filter setup screen we need to select reafir_standalone and then click 'Open Plug-in Interface' from the menu. This will open the VST plugin interface for the reafir_standalone VST that we will be using to remove the static and noise from our Twitch stream.

Once we have opened the plugin interface we need to select the correct mode for our VST. In this case we will select 'Subtract' from the Mode dropdown. The reason we select subtract is that we need to subtract any of the sounds that are not desired from the microphone audio that is making it to our Twitch stream.

With 'Subtract' set as our mode you should now see a light yellowish line that is bouncing on the screen even when you are not talking, this is exactly what we want. The yellow line is showing the noise that is coming through your microphone (as long as you are not talking).

This next part is the bread and butter of the entire setup process. What we are going to do is click the checkbox that says 'Automatically build noise profile (enable during noise)'. When you click this box you need to leave it checked for roughly 15 seconds. It is also important that you do not talk during this time or the VST will include your voice in the audio that it subtracts, this would result in you not being heard on your stream.

At this point you can go ahead and click the checkbox, be quiet and uncheck it after 15ish seconds.

Free Noise Reduction Vst Plugins

When you uncheck the box you should have a line that looks like the image below (keep in mind the actual path of the line will vary depending on how much noise is being picked up by the mic).

That is all there is to it. Now your microphones static noise is being removed from your Twitch stream and your stream will sound much more professional than it did before!

If you enjoyed this tutorial then please consider subscribing to me on YouTube and check out my other tutorial video that can help you improve the quality of your Twitch stream.