Assisted Mastering by Slate Digital


Start using VIRTU today!
Upload your latest mix to hear the VIRTU
difference for yourself.


2 FREE Masters then only $4.99 each (plus tax)


VIRTU™, a new web-based assisted mastering service from Slate Digital, is the final step of your music-making journey. Combining the trusted technology and expertise of Slate Digital with curated Style profiles and easy-to-use Advanced Controls to deliver a streaming-ready master, VIRTU takes the guesswork out of mastering. Give your mix the clarity, space, and depth it deserves to make it sound as good as any song on the charts.

What’s Included with VIRTU

Mastering Credits

VIRTU users start each month with free mastering credits in their account. All Access Pass subscribers get three (3) free masters per month. Non-subscribers can take advantage of our two (2) complimentary masters upon sign-up!

30 days of
Cloud Storage

Once your track is mastered, it will live in VIRTU’s cloud library for 30 days. You can download, rate, and remaster these tracks for the duration of time they exist in the library. Be sure to download your mastered tracks, after 30 days, the master will disappear.

Pay Per Master
Just $2.99 (plus tax) per credit

VIRTU users can purchase additional mastering credits for a low per-master price. All Access Pass members can purchase additional credits for $2.99 per master (plus tax), while non-subscribing users can purchase extra credits for $4.99 each (plus tax).

Intelligent, Assisted Music Mastering Using Tools You Trust

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Hear the Difference with VIRTU


Another Wave

Con Alma

Comin Down


Where Were You




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Bring clarity and space to your mix, and loudness to your track

Whether you’re mastering a Top 40’s hit, a country ballad, a booming trap beat or anything in between, VIRTU can give you a polished, pro result. Use the Style preset that matches your Genre or mix and match.

Professional Masters In Minutes

Upload Your Mix

First, import the final bounce of a stereo WAV file mix. VIRTU will then quickly analyze your track to optimize the mastering process.

Select Style & Loudness

Select the ‘Style’ that best fits your track and choose one of the three loudness targets. You can also access a set of advanced controls, and even add a reference track for EQ and loudness matching.

Preview & Print

Once you’ve selected your desired settings, you can preview 15 seconds of mastered audio before you commit. If you like what you hear, click ‘Master’ to process your entire track, then download it from the library!

Match Your Favorite Tracks

VIRTU’s Reference Track feature adds another layer of customization to the mastering process. Simply upload the track you’d like to reference (WAV only) and VIRTU will match its EQ curve and Loudness profile. Using a Reference Track will allow users to shape their sound beyond the included Genre profiles, so each track sounds exactly the way you want it to.

Expertly-Crafted, Curated Curves

Give your track the final touch it deserves. Virtu lets you take the wheel of your own mastering process with the Advanced Controls and dial it in to taste. The EQ curves and compression algorithms have been calibrated by Slate Digital’s team of experts by hand (and ear), and take inspiration from some of our most beloved emulations, like FG-Dynamics, FG-2A, and FG-Stress.

Intelligent analysis delivers Peak perfection

VIRTU’s intelligent mastering process is sensitive to each track. During the analysis phase, it measures key signal properties (i.e. Peak, RMS, and Average) on different frequency bands to retrieve information about the tonal balance, loudness, and dynamic range of the track. That information helps determine the set EQ curves, multiband compression ratio & threshold, limiter gain, and other key parameters that will define your final master.

Take Advanced Control

Frequency Balance

The frequency balance section lets you make final adjustments to the overall EQ profile of your track. You can either boost or cut both the highs and lows of your master, or leave the end result unaffected to retain the sonic character of your original mix.


The compression presets let you adjust the overall compression of the track. If you want a more neutral result, leave the compression balanced. If you want some extra punch or you’re looking for a more in-your-face master, the ‘Punch’ or ‘Aggressive’ settings are your best bet.

Stereo image

Add some extra width to your master with the stereo widening tool. You can choose to either leave the end result relatively unaffected with the default ‘Balanced’ setting, or you can introduce even more dimension with the ‘Wider’ setting.

All Access Pass. Go From demo to Done.

The All Access Pass is everything you need to record, mix and master your music.

The All Access Pass is loaded with tools like Virtual Mix Rack, Virtual Tape Machines, MetaTune and more that give you all the sonic firepower you need to nail the perfect mix—and VIRTU is the best way to move your mix across the finish line. VIRTU’s intelligent processing takes cues from Slate Digital products you know and trust to deliver a comprehensive yet streamlined and easy-to-use “last step” of your music making process.

Artists React to VIRTU


Producer, Songwriter

“VIRTU is a great tool to help you learn what goes into mastering and what to ask for from an engineer.”

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Singer, Songwriter, Producer

“My mix sounds so much clearer, you can hear so much more of the track. I’d definitely use this as a final master.”

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What Are Pros Saying?…

Anthony Nolan Kramer

"When producers are shopping beats to artists and labels around the world they need their work to sound loud, punchy and as professional as possible to make a good impression. Virtu empowers musicians to quickly polish their tracks with precision and clarity. This enables them to focus more on their creativity and less on technicalities, ultimately helping them stay focused on the work they love."

Anthony Nolan Kramer

Producer/Mix & Mastering Engineer/Audio Post Engineer
Soulja Boy/Musiq Soulchild/Killer Mike/Wale/Jack Antonoff/Sam Dew

Joshua Williams xJ-Will

"I’m actually pretty blown away by VIRTU—Strikes the perfect balance between machine learning and allowing me to make artistic decisions as an artist/composer without feeling restrictive. Great workflow tool for whipping up last-minute demos that sound impeccably polished to meet some of the tight client deadlines I get every week. With VIRTU, I'm able to scale up my music production without sacrificing quality."

Joshua Williams xJ-Will

MAX, MLS, Netflix, Apple, Genesis & FX

Gray Bashew

"VIRTU Assisted Mastering by Slate Digital really impressed me. I've tried several AI driven mastering tools, and this one stands out to me as sounding full and authentic - closer to how a mastering engineer would treat my music. I love the fact that I can upload a reference track or choose the genre. Also, the loudness targets and advanced controls gave me just enough control to get a variety of music (from orchestral to electronic) sounding just the way I want."

Gray Bashew

Shark Week, Drunk History, Disney, Nike


"Just tried the new Virtu assisted mastering by Slate Digital. Boom!!! I used the EDM setting with enhanced low and high end and got back a really punchy and LOUD master in 13 seconds. INCREDIBLE."


Producer, guitarist & keyboardist


"VIRTU generates high-quality, studio-grade masters that are instantly ready for distribution to any of the major streaming platforms. If you’re new to the world of mixing and mastering or you just want a SEAMLESS way to get your latest song out to the world, this is the tool for you."


Recording and Mixing Engineer
Mathematics (Wu – Tang Clan), De La Soul, Redman, Onyx


"VIRTU checks all the boxes, giving you some powerful options to create a great sounding result with an intuitive interface. Super impressed."


Trailer Composer, Producer
Call Of Duty Series, Stranger Things, Doctor Strange in the Multiverse of Madness


"Virtu is a great tool that provides the ‘glue’, low end punch, and radio-ready finish I’m looking for when mastering tracks. The interface is intuitive and user-friendly, and I really like that there are some options for personalizing your final EQ, compression and width settings. This platform can be used successfully by anyone, even without extensive knowledge of mastering."


Sound Designer, Berklee School of Music Faculty

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get to know VIRTU

Watch the Video Walkthrough

More VIRTU Videos

Using VIRTU For Your Mix

Watch Reid Stefan show you how quickly VIRTU generates a studio-standard master.

Virtu (Original Walkthrough)

Learn the ins and outs of the platform and get a brief overview of how the VIRTU mastering process works with this quick walkthrough video.

Mastering Bass-Heavy Tracks

Alex Rios uses VIRTU to achieve a competitive master of a new reggaeton track.

features and specs


  • Upload reference tracks for VIRTU to scan and adjust your master (WAV only)
  • Smart track analysis studies your song’s dynamic range and tonal properties
  • Intelligent genre profiles dial in sonic characteristics and tonal balance of your track
  • Advanced processing options to refine EQ, compression and width of your master
  • Track ratings let you leave notes/feedback on your masters
  • Studio-grade clarity, detail and loudness with no loss in quality
  • Lossless master files perfect for distribution, live testing or as reference tracks
  • Instantly ready for streaming on Apple Music, Spotify, etc.


  • Supported format: Stereo WAV files only (Mono files are not supported)
  • Recommended sample rates: 44.1kHz, 48kHz
  • Maximum file size/duration: 200MB / 15 minutes
  • Minimum duration : 1 second