Music Rebalance - RX 9 Help

Module & Plug-in Table of Contents Music Rebalance leverages a machine learning algorithm trained to identify and separate the following elements in a mix: Vocals, Bass, and Percussion. Any content that is not otherwise identified as Vocals, Bass or Percussion will be categorized as Other. This typically includes all the melodic instruments. The level of

Module & Plug-in

Table of Contents

Overview

Music Rebalance leverages a machine learning algorithm trained to identify and separate the following elements in a mix: Vocals, Bass, and Percussion. Any content that is not otherwise identified as Vocals, Bass or Percussion will be categorized as Other. This typically includes all the melodic instruments. The level of each mix element can be independently adjusted after separation.

Music Rebalance can be useful for adjusting the level of a particular mix element when the original tracks or stems are not available as an alternative solution. In some cases, it can also be used to isolate a single mix element (e.g. the lead vocal) by reducing the level of the other three mix elements. It is available as a module in the RX 9 Audio Editor and as an Audiosuite plug-in in Pro Tools.

Controls

  • VOCALS: Gain adjusts the level (in dB) of vocal signals.
  • BASS: Gain adjusts the level (in dB) of bass signals.
  • PERCUSSION: Gain adjusts the level (in dB) of drums and percussion signals.
  • OTHER: Gain adjusts the level (in dB) of melodic instruments.
  • SOLO BUTTON: Below each of the separation sliders is a solo button for auditioning the separated stem in isolation.
  • QUALITY: There are three separation algorithms to choose from in Music Rebalance: Good, Better and Best. Good is the fastest mode and returns separation results faster than real time. Better and Best are significantly slower than Good, providing two additional levels of higher quality results. Both Better and Best take significantly longer than real time to render.
  • SEPARATION: This determines the percentage of separation between Vocals, Bass, Percussion and Other. The zero end of the slider provides the most natural sounding results, but offers the least isolation between the stems, delivering higher bleed and lower artifacts. Moving towards 100% provides the best isolation and the least bleed, but may introduce artifacts.

Note about Music Rebalance Audiosuite Plug-in

The RX 9 Music Rebalance Audiosuite plug-in does not include the ability to preview processing before rendering.

Separate

Separate automatically splits your selected audio into four distinct stems (Vocals, Bass, Percussion, Other), delivering each stem to its own tab. This process ignores the Gain settings for individual stems and always assumes 0 dB of gain. Once the stems are separated, you can process and export each stem as an independent audio file.

Getting started with Music Rebalance in Logic

Music Rebalance can now be used in Logic as an ARA 2.0 plug-in. In order to initialize the ARA version of Music Rebalance, please follow the following steps:

  • Update to the latest version of Logic Pro*
  • Add the RX 9 Music Rebalance plug-in to a track
  • Close and reopen Logic
  • Add RX 9 Music Rebalance (ARA) as the first insert
  • *Update to the latest version in order to get the best compatibility with the ARA plug-in format in Logic. There are known issues in versions prior to Logic Pro 10.5.1.

    Music Rebalance ARA Tip

    Still not seeing RX 9 Music Rebalance (ARA) appear after restarting? Make sure you are adding it as the first insert on your track. Then try closing Logic and deleting your AudioUnits cache here: ~/Library/Caches/AudioUnitCache, and repeat the steps above.

    Using Music Rebalance (ARA) in Logic

    Now that you have Music Rebalance (ARA) on your track, you’re ready to go. Start playback to have Music Rebalance analyze your audio. Once playback is started, you can pause playback and analysis will continue.

    Note: ARA plug-ins are updated when playback is started. If you make a change to your audio, it will not be reflected until you’ve stopped and started playback again.

    Once you have analyzed you’re audio, you’ll have access to the controls:

    Move the sliders to rebalance your music in real time.The ARA plug-in uses the Good quality mode. If you need even higher quality, use Music Rebalance in the RX 9 standalone editor.

    Using Multiple Instances

    When using multiple instances of the plug-in, the Music Rebalance window will follow the selected track. The track name is shown at the bottom of the window.

    If you select a track that doesn’t contain Music Rebalance ARA, the plug-in will remember the last selected track that contains an instance of Music Rebalance ARA.

    If you have multiple Music Rebalance ARA plug-in windows open, they will all show the controls and settings for the last selected track with Music Rebalance ARA.

    Music Rebalance (ARA) Requirements & Limitations

    • Music Rebalance (ARA) must be the first plug-in on a track.
    • Music Rebalance (ARA) cannot be added to a software instrument track or bus.
    • Music Rebalance (ARA) is not supported by Selection Based Processing.
    • Host presets are not supported by Music Rebalance (ARA).
    • Automation is not supported by Music Rebalance (ARA).
    • Playback must be started to gather audio data.
      • After editing, playback must be stopped and started again to update data.
    • Music Rebalance (ARA) cannot process Apple Loops, compressed audio, flex audio, or reversed regions.
      • These regions can be bounced in place in order to be processed by Music Rebalance (ARA).

    RX 9.3.0

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