Quadravox by Eventide pitch shifter plugin interface with Notation Grid

Quadravox: Harmony and Rhythmic Pitch Shifter Plugin by Eventide Free Download

Rated 4.5/5 on Plugin Boutique (6,099 ratings)

Quadravox is a four-voice pitch shifter plugin from Eventide that generates harmonies and rhythmic sequences from any incoming tone, including drums, based on a chosen key and timing interval.

VST3VST2AUAAXWindowsmacOS64-bit

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Free trial available from the developer

01Overview

Eventide's Quadravox is an effects plugin built around harmony and rhythm. It takes an incoming sound and generates up to four voices, each set by musical interval, level, panning, delay time with feedback and pitch. The plugin is designed to run in several instances at once, so tracks can interact through stacked harmonies and sequenced patterns. It comes with more than 60 presets for electronic music, singer-songwriter and guitar work.

Best for

Vocal harmony stacks
Synth monophonic harmonies
Guitar harmony layers
Rhythmic melodic delays
Drum pitch sequences

Developer: Eventide
Category: Pitch Shifters
Store: Plugin Boutique

02Key features

What you get

Four independently controlled voices with level, pan, delay and pitch
Notation Grid with quantized note placement on a musical staff
Color and brightness show pan and level for each voice
Delay time with feedback, syncable to DAW tempo
MixLock and KeyLock for stable wet/dry mix and key settings
Randomize function for micro pitch shift on each voice
Pitch-tracking off mode for polyphonic and rhythmic sounds
More than 60 included presets

03In depth

Harmony and Sequencing Workflow

Quadravox's Notation Grid shows pitches on a traditional music staff, with a quantized grid for placing notes over time. Color and brightness indicate pan position and level for each voice, which makes the four voices easier to read at a glance.

KeyLock and MixLock help keep your setup stable. KeyLock holds the Key and Scale while you audition options, and MixLock keeps the wet/dry balance fixed as you scroll through presets or your own snapshots.

Each voice has its own delay time with feedback, and the effect can be synced to your DAW tempo for melodic, rhythmic delays.

Sound Character and Use Cases

A Randomize function applies a small amount of micro pitch shift to each of the four voices. Eventide describes this as a way to simulate natural character, which can loosen up stacked parts that sound too rigid.

Pitch tracking can be switched off, and Eventide says this mode suits polyphonic and rhythmic sources. The plugin is also suited to monophonic synths, guitar and vocals, according to the developer's description of its strengths.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Eventide
Type	Plugin
Category	Pitch Shifter
Formats	VST3, VST2, AU, AAX
Operating systems	Windows, macOS
Architecture	64-bit
Free trial	Yes

05FAQ

Questions, answered

What is Quadravox used for?

Quadravox generates up to four harmony voices from any incoming tone, including drums, based on a chosen key and timing interval. It is also used for stacking harmonies and creating rhythmic pitch sequences.

Which formats and operating systems does Quadravox support?

Quadravox is available in VST3, VST2, AU and AAX formats. It runs on Windows 10 and later, including Windows 11, and on macOS 10.14 and later, with Intel and Apple Silicon supported. Both platforms are 64-bit only.

What do I need to use Quadravox?

Quadravox runs inside a compatible host application. Eventide says it tests the plugin in Ableton Live, Cubase, FL Studio, Logic Pro, Pro Tools and Studio One. No iLok dongle is required, but a free iLok account is needed for authorization.