End Boost – Mixing Made Easy

Save time and improve your video’s audio quality with End Boost.
Now available as stand-alone software for video editors.

End Boost updates to v1.5.0: A.I. Voice De-noising, GUI Overhauls, and More!
Info about the update: New features and improvements

Your Videos With Great Sound

Video production takes a lot of effort as it is.

Let End Boost take over audio mixing, giving you more time for the story, visuals, or a break 😄 .

Audio Skills Not Needed

Don’t worry about audio details like EQ, dB, Hz and LUFS.
End Boost takes over audio work for you based on your easy-to-understand preset choices.

Alex Audio Butler’s Algorithms

End Boost contains all A.I.-algorithms and audio presets of Alex Audio Butler.
Because it’s now in a stand-alone app form-factor: expect more stability, predictability, control, and in the future more mixing tools.

Main Features

  • 25+ Smart Preset Combos for Every Use Case
    Automatically get the right style audio mix for your video.
    For any combination of Voice, Music and Sound Effects.
  • Alex Audio Butler’s Algorithms Inside
    The A.I. engine makes use of Alex Audio Butler’s mixing code.
  • AI De-noising & Mastering
    Clean up your recordings, and create the perfect mix for your video.
  • Windows and macOS desktop app
    Supports every NLE using wav-file import and export:
    Premiere Pro, DaVinci Resolve, Final Cut Pro X, Magix Vegas and more.

Mixing Made Easy

Import your audio into End Boost from any NLE or DAW and let our software automatically mix your voice, music and sound effects tracks.
End Boost will apply custom volume curves, compression, limiting and ducking by listening to your audio and provide you with a great overall mix.
Ready to be used in your next video project!

End Boost creates the same audio results as the Alex Audio Butler plug-in. The main difference is that End Boost is a stand-alone application. This gives it a lot more stable, powerful & predictable user experience right now. And we will add a lot more features! Read more about Alex Audio Butler’s future.

End Boost has a Subscription based price model to enable our goal of continuously releasing improvements to the software, and lowering the threshold to get started.

Get Started with End Boost now!

  • Automatic Mixing & Improvements for Voice, Music, SoundFX
  • 25+ Preset Combos for Every Use Case
  • Windows & macOS desktop app
  • Every NLE supported, including Premiere Pro, DaVinci Resolve, Final Cut Pro X, Magix Vegas and more.


$79 $49/mo


37% Introduction Discount
Subscribe now to secure this discount.
Even after new versions release!


5 months free per year!

$549 $339/y


38% Introduction Discount
Subscribe now to secure this discount.
Even after new versions release!

  • VAT will be added on check-out if applicable.
  • Subscription can be cancelled at any time, End Boost will be usable until the end of the billing period.
  • License is per user. It can be authorized on multiple computers simultaneously, but only used on 1 at a time.
  • Larger teams, enterprises please get in touch with sales at info@alexaudiobutler.com for options.

We support major Credit Cards or PayPal
Currency (USD/EUR) shown is based on an estimation of your location, if you need to pay in a different currency please contact support.

Get involved early!

We want End Boost to be used in real-world scenario’s as early as possible to gather feedback, and steer development to the most important things.

This version is:

  • Fully usable in professional workflows.
  • On feature par with Alex Audio Butler.
    • And more: Denoising, EBU R128!
  • 37% discounted for your whole subscription.
  • First to receive new features and updates.

We’re still actively working on adding new workflow improvements, and new algorithms and presets.

Contact Customer Support & Demo Requests

If you’re having doubts if End Boosts works for you: the 7-day trial is free and fully functional and can be cancelled any time. If you need more time to decide contact us.

After filling out this support form you will immediately receive a confirmation in your email, if you don’t see it check your spam folder. If you don’t see anything after an hour please e-mail us directly at support@alexaudiobutler.com, so we are sure our answers reach you.

System Requirements

End Boost is tested on:

    • Windows 10 & 11 64-bit.
    • macOS 11+ (Intel & Apple Silicon/M1).
    • We also expect End Boost to work on macOS 10.14+

CPU, GPU, RAM etc:

    • Any computer that can be used to edit video should run End Boost fine. 

End Boost Usage Guide

Download as PDF: End Boost Usage Manual

Download & Install
    1. After you buy End Boost or request a demo, you will get an email with a download link.
    2. Download the files and extract the zipped folder.
    3. Run the installer for your computer (Windows or macOS) and follow instructions.
    4. End Boost can now be run from
      • macOS: the Application Folder.
      • Windows: the Start Menu.
    5. On the first run you will have to activate your license with your email address.
End Boost Usage Guide

⚠️ Before you start End Boost make sure you have exported your audio tracks from your video editor (see “Prepare Track Files”). 

Open End Boost:

    1. Build the sequence
      1. Click “New Project” and select your audio track files.
      2. For every track select between Voice, Music or Sound FX based on the type of audio (the title of the track matches the filename).
      3. Optionally also load a Preview Video that will be played back with the audio for better previewing.
    2. Choose Presets
      1. End Boost has started analyzing in the background already.
      2. Once the analysis is done you can preview the result using the “Play Preview” button, or pressing [SPACE].
      3. You can change the Alex Audio Butler presets for each track in the track headers. In the Mix section there you can choose a Mastering preset, and a Delivery Target that controls the final loudness.
        • Most of the time this will trigger a re-analysis. That needs to finish before you can preview again.
    3. Export
      1. Click “Export” and specify a filename (ending in “.wav”), and wait for the progress bar to finish.
      2. The fully mixed and mastered audio is now ready for usage.
        • You can remove or mute the original audio in your video editor, replace it with the Export result, and make your final video export.

If you want to mix a new project or update your stems, go back to step 1.

Prepare Track Files
    1. Open your video project in your editor (Premiere Pro, DaVinci Resolve, Final Cut Pro X, Magix Vegas, …).
    2. Disable/bypass audio effects that will clash with End Boost like gain/compression/dynamics/limiter plug-ins.
      • EQ, stylistic crossfades/fade-ins/fade-outs and other artistic audio effects are not handled by End Boost right now so can be kept activated.
    3. Use the audio track solo buttons one by one to make an audio-only export of each track. Take care to give useful names (ie track numbers).
      • See an example of the workflow for Premiere here (the step with Ableton Live is not necessary): Quick Tutorial on Exporting Individual Audio Channels in Premiere Pro↗️. 
      • The same workflow can be translated to DaVinci Resolve using the Fairlight Tab for solo-ing tracks, and choosing Audio Only in the Render Tab.
      • For best result export to 48kHz uncompressed stereo wav file. In any case all files need to have the same sample rate and channel configuration.

Specific workflows for DaVinci Resolve and Premiere Pro are described in the full Manual: End Boost Usage Manual.