Eventide Quadravox
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Manufacturer Information
Eventide
https://www.eventide.com
support@eventide.com
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What Quadravox Is For
Quadravox is a composition and sound design plugin that transforms an incoming signal into up to four harmonized voices according to a chosen key and scale. It is useful both for writing (chord ideas, counter-melodies, melodic movements) and producing (harmonic doubling, stereo widening, synchronized melodic delays). Whether you work in electronic, pop, rock, or ambient music, it allows you to generate clean and inspiring harmonies from a vocal, a guitar, a mono lead, and even percussive elements for original rhythmic sequences.
Main Features
4 independent voices for custom harmonies
Each Quadravox voice can be adjusted separately: pitch (with choice of musical interval type), level, pan, as well as a delay with feedback. This layered approach makes it easy to create a synthetic choir, a controlled stack of intervals, or precise stereo widening without losing mix clarity.
"Musical" notation grid and rhythmic programming
The Notation Grid displays pitches on a traditional staff and offers a quantized grid to place notes in time. This allows you to program harmonic movements and rhythmic responses intuitively. Visual cues help you mix quickly: color and brightness represent pan and level of each voice respectively.
Instant creativity: locks, presets, and natural character
Quadravox includes MixLock to preserve the wet/dry setting when changing presets or snapshots, and KeyLock to lock the key and scale during exploration. The result: you can audition ideas without losing your mix balance or harmonic context. The Randomize function adds micro pitch variations to simulate a more organic character and subtly differentiate the 4 voices.
Suitable for mono, rhythmic sources, and stacking
Optimized for use in multiple instances, Quadravox encourages interactions between tracks (crossed harmonies, call-and-response patterns, animated pads). The pitch-tracking off mode emphasizes musicality of shifts and sequences, particularly useful on polyphonic or rhythmic sounds when you want a more creative effect than strict pitch tracking.
Technical specifications
| Type | Full software |
| Downloadable | Yes |
| Mac | macOS 10.14 or higher, Intel and Apple Silicon |
| Windows | Windows 10 or higher |
| Per-voice settings | level, pan, delay, feedback, pitch, and interval type |
| Notation Grid | traditional staff + quantized grid for note placement in time |
| Visual indication | color and brightness represent pan and level |
| MixLock | preserves wet/dry when changing presets or snapshots |
| KeyLock | preserves key and scale when changing presets or snapshots |
| Randomize | micro pitch shift for a more natural feel across the 4 voices |
Questions frequently asked
Can Eventide Quadravox create four-part harmonies?
Up to four harmonized voices can be generated from an input signal, depending on the selected key and scale. Each voice has separate controls for pitch, level, pan, delay, and feedback.
Is Quadravox compatible with Mac Apple Silicon and Windows 10?
Compatibility is ensured on macOS 10.14 or later, running on Intel and Apple Silicon processors. Windows 10 or later is also supported.
How to program rhythmic harmonies with the Notation Grid?
The Notation Grid combines a traditional staff with a quantized grid for placing notes in time. Color indicates the panning of each voice, while brightness represents its level. This visualization simplifies the programming of counter-melodies and rhythmic call-and-response.
Are mix settings retained when changing presets?
MixLock preserves the wet/dry setting during preset or snapshot loading. KeyLock simultaneously maintains the selected key and scale.
Does the plugin work on polyphonic or percussive sounds?
The pitch-tracking off mode is designed for polyphonic and rhythmic sources, favoring pitch shifts and sequences. The Randomize function applies slight pitch variations to the four voices for a more organic result.
