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Head-to-head · AI Harmony Generators

Echelon Audio VOICES vs OpenVoxTuner

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Echelon Audio VOICES #3 in AI Harmony Generators 6.6/10 From $17.99/mo · 7-day trial ✓ 2 of 5 features Visit Echelon Audio
Higher score OpenVoxTuner #7 in AI Harmony Generators 7.2/10 Free plan Free plan✓ 3 of 5 features Visit OpenVoxTuner

Echelon Audio VOICES leads on 1 check, OpenVoxTuner on 2, and 3 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOpenVoxTuner · 7.2/10
  • Free planonly OpenVoxTuner
  • Most featuresOpenVoxTuner · 3 of 5

OpenVoxTuner scores higher on our rubric for ai harmony generators: 7.2 against 6.6 out of 10; our editors rank them #7 and #3.

OpenVoxTuner offers free plan; Echelon Audio VOICES doesn't. Echelon Audio VOICES leads on maximum harmony voices: 8 voices versus 4 voices. OpenVoxTuner offers live processing; Echelon Audio VOICES doesn't publish it.

Echelon Audio VOICES is the better fit for DAW users who need up to eight live voices. OpenVoxTuner is the better fit for budget-conscious desktop users wanting live harmony.

  • Echelon Audio VOICES fits best

    DAW users who need up to eight live voices

  • OpenVoxTuner fits best

    Budget-conscious desktop users wanting live harmony

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Side by side

Feature Echelon Audio VOICES 6.6/10 Visit ↗ OpenVoxTuner 7.2/10 Visit ↗
At a glance
Editor score 6.6 7.2
Ranking #3 in AI Harmony Generators #7 in AI Harmony Generators
Best for DAW users who need up to eight live voices Budget-conscious desktop users wanting live harmony
Pricing model Paid Free
Starting price $17.99/mo Not published
Free plan — ✓ (best)
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS Windows, macOS
Support Email, Tickets, Docs Community, Docs
Built for Solo, Small business Solo, Small business
Features Echelon Audio VOICES 2/5 · OpenVoxTuner 3/5
Key/scale detection ✓ ✓
Humanisation controls ✓ ✓
Web app — Not published
Live processing Not published ✓ (best)
Harmony stem export Not published Not published
Specs
Maximum harmony voices 8 voices (best) 4 voices
Plugin formats AU, VST3, AAX VST3, AU, Standalone, ARA2
Our review
Pros
  • Up to eight simultaneous, humanized harmony voices
  • Per-voice stereo spread, tightness and vibrato controls
  • AU, VST3 and AAX support across macOS and Windows
  • Automatic key detection supports scale-aware pitch correction.
  • Up to four live harmony voices have individual controls.
  • ARA2 synchronization, MIDI output, and a graphical pitch editor.
Cons
  • No free plan; the trial lasts seven days
  • Requires a compatible desktop DAW and iLok licensing
  • Perpetual license costs $149, above lower-cost alternatives
  • Runs on Windows and macOS, not other listed platforms.
  • Support is through community channels and documentation.
  • AGPLv3 licensing may not suit every project or workflow.
Our verdict

Echelon Audio VOICES is a vocal-harmony audio plug-in for music producers and engineers working in compatible digital audio workstations. It reads the song key and generates scale-aware harmony parts in real time, stacking up to eight…

Read the review →

OpenVoxTuner is a free, open-source vocal production plugin for desktop users who want real-time pitch correction and harmony generation. It runs on Windows and macOS in VST3, AU, standalone, and ARA2 formats. Automatic key detection can…

Read the review →
  1. Echelon Audio VOICESAI Harmony Generators 6.6From $17.99/mo · 7-day trial
  2. OpenVoxTunerAI Harmony Generators 7.2Free plan

Strengths and trade-offs

  • Echelon Audio VOICES — where it wins

    • Up to eight simultaneous, humanized harmony voices
    • Per-voice stereo spread, tightness and vibrato controls
    • AU, VST3 and AAX support across macOS and Windows

    Where it doesn't

    • No free plan; the trial lasts seven days
    • Requires a compatible desktop DAW and iLok licensing
    • Perpetual license costs $149, above lower-cost alternatives
  • OpenVoxTuner — where it wins

    • Automatic key detection supports scale-aware pitch correction.
    • Up to four live harmony voices have individual controls.
    • ARA2 synchronization, MIDI output, and a graphical pitch editor.

    Where it doesn't

    • Runs on Windows and macOS, not other listed platforms.
    • Support is through community channels and documentation.
    • AGPLv3 licensing may not suit every project or workflow.

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026