Drop in your multitracks. MIXPrep names every track, gain-stages your session, and detects the key and tempo automatically. Open your DAW and mix.
A real session: dropped in, prepped, and sent to Pro Tools.
macOS 14+ (Apple Silicon) · Intel Mac & Windows in beta · 30-day money-back guarantee
I'm David Glenn, founder of The Mix Academy and a multi-platinum mix engineer with more than 20 years behind the console, on records with artists like Redimi2, Dr. Tumi, Blanca, and Christine D'Clario. MIXPrep is the prep tool I built for my own sessions. Now it's yours.
Where you've seen my work
The Mix Academy · The Pro Audio Files · Recording Revolution · URM Academy · Sonic Scoop · Sonarworks
Every session starts the same way: a download link, a ZIP file, and a folder full of Audio_14.wav, bounce_v3_FINAL(2).wav, and tracks you have to solo just to figure out what they are.
Before you touch a single fader, you spend 60 to 90 minutes renaming, sorting, gain-staging, and organizing. Every track arrives at a wildly different level. You open your DAW already annoyed, still searching for the key, the tempo, and the problems hiding in the session.
MIXPrep gives you back the first 60 to 90 minutes of every mix.
Drop in a folder. Get clean track names, gain staging done your way, automatic key and tempo detection, and a complete session breakdown, before you open your DAW. Start mixing while the coffee is still hot.
This is one screen, before and after MIXPrep. Drag the handle and watch the mess turn into a session you can actually work in.
No menus to learn. No setup. Here is the whole flow, start to finish. (The full walkthrough is playing up top.)
Any folder of audio multitracks, or a zip file. WAV, AIFF, FLAC, MP3. Any sample rate, any bit depth.
Drop a folder and MIXPrep takes it from here.
Vocals, kick, snare, room mics, pads, and 32 more categories. TrackSense reads both the filename and the audio itself, and turns names like "Lead_Vox_v3_FINAL.wav" into a clean "Lead Vox" instantly. Pure placeholders like "Audio_Track_14.wav" stay flagged with a NO NAME badge until you take a 2-second listen and label them. We won't make up a name we don't actually know. Across 100+ tracks in seconds, not minutes.
Not one flat target for everything. Your kick gets different headroom than your room mic. Your vocal gets different headroom than your bass DI. Category-aware gain staging, calibrated from real sessions. Load a reference mix you love and MIXPrint captures its per-category balance as a reusable template, so every new session can start at a proven balance instead of guesswork.
Every stage handled automatically, gain structure included, before your review opens.
Key, tempo, time signature, and the full track count by category, detected automatically. You know exactly what you're walking into. (The full MIXBrief report, with mix priorities, frequency relationships, and an exportable checklist, is part of the Pro layer.)
Your multitracks go from a pile of mystery files to organized, gain-staged copies, with the key, tempo, and track breakdown in hand. In minutes instead of the first hour.
"I dropped a 90-track session in and had it organized and gain-staged before my coffee was done. This is the part of mixing I always dreaded, and now it's gone."
John S. · Mix Engineer, Nashville
"The category-aware gain staging alone is worth it. Most things land where they should before I even open the session. I start mixing instead of fighting levels."
Brett J. · Freelance Mixer, Worship + Pop
"It's honest. When it can't name a track, it tells you instead of guessing. That's the thing other tools got wrong, and it's why I trust this one with real sessions."
Adam B. · Recording + Mix Engineer, Rock
"It has been an absolute privilege to beta test the Intel version of MIXPrep and witness its evolution first-hand. The development team has been working tirelessly. The bugs are getting squashed, incredible new features are constantly dropping, and the brand-new GUI is both gorgeous and highly functional. I am so impressed with how far this app has come. It's an absolute game-changer for session prep!"
Jacki B. · Songwriter + Beta Tester
Early feedback from MIXPrep engineers. More published with permission as Founders come aboard.
This is the founders window. Through August 31 you own MIXPrep outright for a single payment, updates included, with no monthly bill ever. On September 1 it moves to subscription pricing. Lock the one-time founders price now and it is yours for good, a full prep suite for less than a year of most AI tools.
Lock the one-time founders price before it closes August 31. After that, MIXPrep moves to subscription pricing.
Everything that runs on your machine. Drop a folder, get a prepped session. That simple.
Everything in Core, plus the reference engine and the feature that drops your prepped session straight into your DAW.
Want Control Room access, the beta team, or to go all in? See the full founder tiers below.
Here's everything you get inside the app.
Tour the Features →Built by a mix engineer who got tired of prepping sessions the hard way.
TrackSense reads both the filename and the audio content. Vocals categorize especially well, along with kick, snare, room mics, and 33 more categories. Tracks we can't confidently identify get flagged with a NO NAME badge so you can preview, name them in one click, and move on. Every time you correct it, it remembers, so it is sharper on your next session, and the one after that.
Session-Matched Adaptive Ratio Targeting. Your kick, your vocal, and your room mic each get the right amount of headroom for what they are. Not one flat number for everything. Calibrated from real-world mix sessions.
Load a reference mix you love, and MIXPrint captures the per-category balance as a reusable template. Every new session starts at that proven balance, with per-category lock and SMART toggle so you stay in control of every track type. Stop building rough mixes from scratch. Start where your last great mix left off.
"Lead_Vox_bounce_v3_FINAL(2).wav" becomes "Lead Vox" instantly. Pure placeholder names like "Audio_Track_14.wav" stay flagged with a NO NAME badge so you can preview the audio and label them in one click. We don't guess what we don't know.
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Before you open your DAW, MIXBrief reads the whole session and hands you the priorities: a plain-English read, what to tackle first, frequency relationships across tracks, mix approach notes for the genre, and the items worth watching. Export it to Apple Notes as a checklist or to PDF for clients. Part of the Pro layer.
"I'm really impressed with the Session Intel. It goes into detail with incredible precision, almost like looking through a magnifying glass. Being able to export it straight to Apple Notes as a checklist is just brilliant." Ricardo R., Mix Engineer, Brazil
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Stop hunting for the right reference. MIXRef analyzes your session's genre, energy, and sonic profile, then recommends verified professional releases. SonicLens lets you audition references side by side with 30-second previews, then links you straight to Apple Music and the iTunes Store to buy the track and add it to your library. Every pick comes with a confidence score and verified mixer, producer, and mastering credits, plus Grammy, Dove, BET, and Billboard award badges. Part of the Pro layer.
MIXPrep auto-detects key, tempo, key changes, and time signature from the audio itself. Know exactly what you're working with before you open your DAW. No metadata guessing, no manual BPM tapping.
Export a MIDI key map based on detected key and key changes. Load it directly into Auto-Tune, Melodyne, or any pitch correction tool. Skip the manual scale setup entirely.
Sub-frequency analysis flags every track that has unnecessary low-end energy, so you know exactly where to clean up before you even open an EQ plugin.
170+ audio terms in 15+ languages. MIXPrep auto-detects international sessions and translates track names so every track makes sense, no matter where the session originated.
Core processing runs 100% locally on your computer. MIXRef's default reference matching uses metadata and analysis data only, not your audio files. The optional Enhanced Mode (off by default) uploads short audio analysis to Google for deeper matching. For pre-release or major-label sessions under NDA, leave Enhanced Mode off and your audio never leaves your machine.
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Set your own track order and category colors, dial in processing and gain targets, and pick your export and SESSIONPrint defaults. MIXPrep adapts to your workflow, so every session comes out the way you want it, automatically.
I'd rather tell you exactly what's solid and what's still cooking than pretend it's all finished. Engineers can smell vaporware. Here's the honest map.
TrackSense categorization, Clean Names, SMART Gain staging, the full prep and process, and Send to Pro Tools. This is the core, and it does the heavy lifting on real sessions right now.
MIXPrint, MIXRef Pro, MIXBrief Pro, and SessionPrint. They work, and they're good. They're also improving fast, and your feedback shapes where they go next.
PhaseSync, automatic phase alignment for multi-mic'd kits and re-amps.
You're not buying a frozen product. You're locking founder pricing on a tool that improves constantly, with a direct line to me when something's off. macOS 14+ on Apple Silicon is the production build. Intel Mac and Windows are in beta. They work, with a few kinks, and you lock the price for life today.
MIXPrep preps the session. Getting it into your DAW happens one of two ways.
Your prepped, gain-staged session built straight into your open template. No importing.
Your session, injected straight into your Pro Tools template.
A prepped session file your DAW imports, with named, organized, gain-staged tracks.
You get a clean, numbered output folder, ready to drop into any session.
Export uses AAF and DAWproject, the standard session interchange formats. Direct Inject for Reaper is on the way. Pro Tools is in beta now.
MIXPrep gets your session ready. The Control Room is where I help you finish the mix.
It's my full course library, live Control Room sessions and replays, and a community of engineers leveling up together. MIXPrep comes with it, so the tool that preps your session and the place that teaches you to mix it live in the same membership.
MIXPrep gets your session ready. This is what happens when I help you take it the rest of the way, inside the Control Room.
"David Glenn is one of the most talented mix engineers I've worked with. His ability to teach what he does and break it down for others is a rare gift. If you want to get better at mixing, this is where you go."
John James · Former lead singer of Newsboys, multi-platinum recording artist
"I have a degree from Full Sail, and David Glenn's training has given me more workflow clarity and practical mixing skill than my entire formal education."
Tom Camp · Full Sail graduate and mix engineer
"I've made 20 times what I invested in The Mix Academy back in mixing income. The ROI isn't theoretical. It shows up in real client work."
Scott Osterloh · Professional mix engineer
Start with Core at $97. Each tier above includes everything in the tiers below it. Checkout takes Apple Pay, Google Pay, card, Affirm, Klarna, or PayPal. After August 31 the one-time founders price closes and MIXPrep moves to subscription pricing. It stays included in Control Room at $49 a month.
The session-prep grind ends here. Full MIXPrep app, founders pricing locked for life.
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Open your DAW knowing exactly where the mix wants to go.
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Shape v1.5 with us. Control Room access included for a year.
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All in. Control Room for life.
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A real say in what we build. Only 10 spots, and once they're gone, this tier closes for the life of MIXPrep.
Only 10 spots, secure checkout via Kajabi
Already bought in at a lower tier and want to move up? Email support@themixacademy.com and we'll credit what you paid.
If MIXPrep saves you 30 minutes per session and you mix twice a week, that's 52 hours a year. At any billing rate, this pays for itself before you finish your first week.
This is not genre-specific. This is not DAW-specific. If you receive audio files and need to make sense of them before mixing, MIXPrep saves you time on every single session.
xattr -cr /Applications/MIXPrep.app then open normally. One time only. MIXPrep runs entirely on your machine, your audio files never leave your computer.I'm David Glenn. Mix engineer, founder of The Mix Academy. Over 20 years mixing professionally, teaching engineers the whole way. I stepped away for a season, life, health, all of it. When I came back, able to work again, I hit a snag I didn't expect.
The prep tool I'd used on every session for years wouldn't even open. Just dead. And it forced a question I couldn't ignore: why am I still spending the first hour of every mix doing work that doesn't require my ears?
Renaming tracks. Sorting multitracks. Fixing gain staging. Trying to make sense of someone else's session. That's not mixing. But it's where all your best energy goes.
So I started building a small utility, just enough to handle gain staging and mono conversion. That was the plan. Then the hyperfocus kicked in. One fix turned into another, and pretty soon it wasn't a tool anymore. It was a system. Every feature built around one idea: get the grunt work done before the creative decisions start.
Here's the part that still gets me. My very first course, back in 2011, was called "The Mix Prep Series." Gain staging. Session organization. The fundamentals. Fifteen years later, the thing I was teaching became the thing I'm shipping. Same fundamentals, different form. Full circle.
I built this because I needed it. I'm sharing it because I think you need it too.
Drop a folder. Get organized files, category-aware gain staging, and your session's key, tempo, and track breakdown. Start mixing instead of prepping.
macOS 14+ (Apple Silicon) · Intel Mac & Windows in beta · 30-day money-back guarantee · Founders pricing locked for life