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iZotope VocalSynth


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iZotope VocalSynth

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iZotope VocalSynth

Vocals, Evolved.

VocalSynth 2 is an immersive vocal experience that adapts and adapts and evolves with your unique style and opens up a world of vocal possibilities. Color and shape vocals with five blendable eccentric-must-haves and stompbox-style studio effects. A one-stop for past, present, and future vocal sounds, VocalSynth 2 features a Vocoder, Compuvox, Polyvox, Talkbox, and Biovox: a brand new effect based on the sonic qualities of the human vocal tract.

iZotope VocalSynth Highlights

The evolution of vocals

Elevate your vocal productions with the music production’s most unique plug-in experience for vocals. Quickly get old school sounds you need or create a new school of vocal sounds. Get lost in layers, textures, effects, blending, and morphing in an experimental vocal playground, and finally find that secret something that makes your vocals stand out. Choose and meld five unique vocal tools or pick from hundreds of presets for quick impact.

Killer sounds out of the box

We’ve completely redesigned iZotope VocalSynth to get you a better sound, faster than ever. Through meticulous design, we’ve made improvements to every aspect of VocalSynth. For example, we expanded the Vocoder for a more faithful sound. We packed more power into Shred. We also optimized the CPU. In addition, we added more control within each module. Indeed, there’s much more. We’ve also added brand new presets that take full advantage of all VocalSynth has to offer, so you can get up and running right out of the box.

Biovox: Vocals down to a science

Create and manipulate your biological imprint with a brand-new vocal effect. Using scientific modeling of a human vocal tract, adjust human vocal characteristics like nasality and vowel shapes. In addition, it formats for a smooth, textural vocal treatment to any audio signal. Use surgically to adapt takes to better fit your production. Or, apply it as a creative effect to make a vocal more present, breathy, or totally mangle it!

Stompbox playground

Further enhance your production with a custom drag-and-drop vocal effects chain featuring seven experimental effects including a new and improved Shred, Ring Mod, Chorus, Distort, Filter, Transform, and Delay. Add a little extra something special for a perfect cocktail of vocal effects.

Three ways to play

VocalSynth 2 is built to be flexible, giving you three ways to interact and create. In Auto mode, get up and running on any track and apply effects and presets instantly. Then, in MIDI mode, play and automate your production’s effects, harmonies, and other parameters with MIDI input or from any MIDI controller. Finally, in Sidechain mode, use any audio signal to drive VocalSynth 2 effects to expand creative horizons.

Inter-plugin communication

VocalSynth 2 works within the ecosystem of iZotope products. Like Neutron, Ozone, and Tonal Balance Control, VocalSynth 2 features inter-plugin communication. This allows for seamless integration with essential tools for music production and analysis. VocalSynth 2 can be seen within Neutron 2’s Visual Mixer and Masking Meter. In addition, find it within Tonal Balance Control. To explain, this allows you to interact and get visual feedback in real-time.

iZotope VocalSynth Key features

  • Biovox: Using scientific modeling of a human vocal tract, adjust human vocal characteristics like nasality, vowel shapes, and formants for a smooth, textural vocal treatment to any audio signal.
  • Stompbox-style effects: VocalSynth 2’s effects include two brand new pedal-style effects: Chorus and Ring Mod with a unique tremolo effect. Now drag to re-order all seven effects. This includes an improved Shred with sequencer as well as Distort, Filter, Transform, and Delay.
  • 3 ways to play: Built to be flexible, giving you three ways to interact and create with Auto Mode, MIDI Mode, and Sidechain Mode.
  • Inter-plugin communication: Use VocalSynth 2 within Neutron 2’s Visual Mixer and Masking Meter, as well as Tonal Balance Control for a bird’s eye view of your music production at all times.
  • Extensive sonic enhancements to the Vocoder module as well as Talkbox, Polyvox, and Compuvox that improve usability, CPU utilization, and sound quality.
  • Reimagined interface with deep control: VocalSynth 2 includes a brand new, modern interface and the addition of advanced synthesizer controls for each individual module.  Paired with a fluid, evolving visualization, get hours of creativity with you at the helm with iZotope VocalSynth.


Help Docs

VocalSynth Comparison Chart

   VocalSynth 1   VocalSynth 2
NEW! Biovox Module
Vocal tract modeling
Vowel matrix control
Advanced synth controls
Module synth presets
Filter and Pan Control
Vocoder Module
Vocoder module
Access to module synth controls
Access to Vocoder band controls
Per band control
Module synth presets
Filter and Pan Control
Improved sound
Compuvox Module
Compuvox module
Expanded access to synth controls
Filter and Pan Control
Module synth presets
Improved sound
Talkbox Module
Talkbox module
Expanded access to synth controls
Filter and Pan Control
Module synth presets
Improved sound
Polyvox Module
Filter and Pan Control
Advanced Voicing Controls
Creative Effects
Drag to reorder effects [NEW]
Ring Mod [NEW]
Chorus [NEW]
Shred [*IMPROVED in V2]
NEW! Inter-plugin Communication
Visual Mixer Support
Masking Meter Support
Tonal Balance Control Support
I/O and Other
CPU performance improvements
Anemone Visual interactive visualization
Auto, MIDI, and Sidechain Modes
Wave Meter visualization
X/Y Pad control
Global Gate, Pan, and Width controls
Pitch and Voicing controls
Parallel module processing
Professionally designed presets


VocalSynth runs as a plug-in within your digital audio workstation. VocalSynth is not a standalone application.

Supported Operating systems

  • Windows: Win 7–Win 10
  • Mac OS X 10.8.5 Mountain Lion–macOS 10.15 Catalina

Plugin Formats:

AAX (64–bit), AU, RTAS (32–bit), VST, VST3

Supported Hosts:

Logic Pro X, Ableton Live 9–10, Pro Tools 10-2018, Cubase 9.5, FL Studio 12, Studio One 3-4, Reason 10, Reaper 5, Bitwig Studio 2

If you are running Mac OSX 10.15 (Catalina) please read our knowledge base article before installing – Learn More

Version 2.6.1 released September 14, 2023

Bug Fixes

  • FIXED Existing authorization is not recognized for some users after updating to version 2.6.0 from version 2.5.0.

Version 2.5.0 released April 28, 2022

Updates & Improvements

  • Added native support for Apple silicon Macs (Apple M1 chips).
    • Note: VST2 instances of VocalSynth 2 are only available in DAWs or NLEs opened using Rosetta on Apple silicon Macs.
  • Added support for macOS Monterey (12.3.x).
  • Added support for Windows 11.

Bug Fixes

  • Fixed hang that could occur when loading a saved session containing multiple instances of VocalSynth.
  • Fixed error message or blank plug-in UI that could appear in Logic on Apple silicon-based Macs upon closing and reopening the plug-in window after certain interactions.
  • Fixed filter instability when processing at low sample rates that could cause failures during AU validation.

Version 2.4.1 released December 14, 2021

Bug Fixes

  • Fixes a hang that could occur when interacting with the VocalSynth 2 UI on macOS High Sierra (10.13).

Version 2.4.0 released October 29, 2021

Operating System Support Changes

  • Added support for Rosetta on Apple Silicon ARM-based Macs running macOS Big Sur.

Bug Fixes

  • Fixed possible AU validation failure on Apple Silicon ARM-based Macs running macOS Big Sur.
  • Fixed crash that could occur when VocalSynth was added to sessions alongside certain 3rd party plug-ins (MAAT, InaGRM, Sonnox, etc…).
  • Fixed invisible inline edit text field boxes in AAX instances within Pro Tools on Big Sur (Intel & Apple Silicon Rosetta).
  • Fixed inability to delete presets when running VocalSynth as an out-of-process AU plug-in on Apple Silicon ARM-based Macs running macOS Big Sur.
  • Fixed missing setup help images when running VocalSynth as an out-of-process AU plug-in in certain DAWs on Apple Silicon ARM-based Macs running macOS Big Sur.
  • Fixed display issue that could occur after opening an inline edit field in Logic Pro on macOS Catalina.
  • Various additional bug fixes.

General Updates

  • Updated preset system to install factory presets to a root level directory and save custom presets to the user documents directory.

Version 2.2.0a released October 19, 2020

Bugs & Fixes:

  • Windows installer: Fixed cleanup behavior when a customized installation is aborted.

Version 2.2.0 released September 2, 2020

Bugs & Fixes:

  • Various bugfixes
  • Improved animation on Windows
  • Fixed an issue where coarse slider adjustment via a keyboard modifier did not function properly

Version 2.1.0 released June 11, 2020

Bugs & Fixes:

  • Fixed crash in Logic Pro X 10.5
  • Improved support for macOS Catalina
  • Fixed an issue where the uninstaller would not first run when re-installing or upgrading on Windows
  • Update installation path to 64-bit Program Files directory on Windows
  • Added Japanese translation of help documentation
  • Performance improvements
  • Display enharmonic names of root notes in Pitch module

Version 2.01n released December 17, 2019

General Compatibility Updates:

  • Support for installation on macOS 10.15 (Catalina)

Version 2.0 released May 23, 2018

General Compatibility Updates:

  • VocalSynth 2 & Insight 2 Compatibility:Added ability to select VocalSynth 2 instances as IPC sources in the Insight 2 Spectrogram meter.
  • Installer update: Updated installer to fix optimization error message that would appear on macOS High Sierra (10.13) and macOS Mojave (10.14).
  • Operating system support: Added support for macOS Mojave (10.14).
  • Plug-in host application support: Added support for Presonus Studio One 4.
iZotope VocalSynth

Using VocalSynth and DDLY on Vocals

Want your vocals to sound like they came from outerspace? Learn how to shape your tracks with VocalSynth as well as use the DDLY plug-in to give the vocals a club-ready feel.


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