• Online Stock In Stock
  • Updating stores stocks...
Price Match


Roland VT-4 Voice Transformer

Roland VT-4 Voice Transformer is a real-time vocal processor that builds on the success of the VT-3. Designed to craft and shape your own custom vocal sounds, from subtle augmentation to radical transformation. Part of the Aira range, this is designed for adding both classic and futuristic effects to your voice and offers hands-on control and a MIDI input so that you can ‘play it’ from your MIDI keyboard. Smoothly alter the pitch and formant of a voice or add heavily processed vocal effects to your studio work, stage performances, podcasts, web streaming, and more. All controls are conveniently located from the front panel so you can make tweaks as you sing without menu diving or programming. There are dedicated Pitch and Formant sliders, while the central Auto-Pitch knob enables you to quickly dial in your desired amount of hard tuning. You can use multiple effects at the same time and save these setups as presets for later recall.

Create remarkable effects such as harmonizing, vocoding, pitch shifting, hard tuning, and more with the dedicated pitch, formant, balance, and reverb sliders. A center wheel provides auto-pitch features, while the dedicated robot, megaphone, vocoder, and harmony buttons allow you to mix and match effects. Each effect has a selection of one-touch variations, so you can get different vocoder characteristics, various lo-fi effects, multi-part harmonies, and distinct kinds of reverb and delay. Chain your effects, set the controls just how you like them, and then simply hold down a preset button to save that scene for later. Up to eight scenes can be saved for instant recall. Changing presets and tweaking controls is smooth and immediate, with no jarring artifacts, glitches, or dropouts. Dramatically change your entire persona from male to female, big to small, or good to evil. What’s more, the VT-4 can be powered for up to five hours with batteries, making it truly portable.

If you plug in a MIDI keyboard you can use it to control the Auto-Pitch, harmony and vocoder engines. So, your voice can be hard-turned to specific notes as you sing, and you can create harmonies with voicings that follow the chords that you play. The VT-4’s performance-centric workflow means that it’s likely to appeal to live performers, but its USB audio output means that it should also be easy to hook up to your DAW in the studio.



  • Plug and play midi control
  • No menu’s or programming for intuitive playability
  • Chain effects, saving up to 8 presets for instant recall
  • I/O, a rear panel features a combo XLR-1/4″ connector with switchable +48V phantom power for use with your favorite condenser microphone.
  • Outputs are provided by a pair of 1/4″ TRS connectors which can be configured as either mono/stereo or separate wet/dry channels.
  • Built-in USB audio interface with adjustable volume level provides loopback recording to overdub vocals on existing tracks.
  • USB bus powered or via the four included AA batteries.
  • Lightweight
  • No latency
Effect Descriptions:
  • Robot: Produces an expressionless voice with a fixed pitch, evocative of a robot
  • Megaphone: Produces a distorted voice, as though you were using a megaphone
  • Vocoder: Produces a vocoder voice
  • Harmony: Lets you add harmony to the sound
  • Auto Pitch: Pitch-corrects your voice
  • Key: Specifies the key that is used when applying an effect with the Robot button or the Auto Pitch knob
  • Pitch: Adjusts the pitch of the voice
  • Formant: Adjusts the formants of the sound
  • Balance: Adjusts the balance between the normal voice  and the effect-processed voice
  • Reverb: Adjusts the amount of reverb


Connectors: Mic In (Rear): 1 x combo XLR-1/4″ / 6.3 mm

Mic In (Front): 1 x 1/8″ / 3.5 mm TRS (plug-in power)

Phones: 1 x 1/8″ / 3.5 mm TRS

Line Out: 2 x 1/4″ / 6.3 mm

USB Port: 1 x USB Type B

MIDI In: 1 x 5-pin DIN

Phantom Power: +48 V, 10 mA max

USB: Audio

Nominal Input Level Mic In: -40 to -12 dBu (variable)

Input Impedance MIC IN (Rear): 4.4 kOhms

MIC IN (Front): 2.2 kOhms

Nominal Output Level -10 dBu

Output Impedance Out: 1 kOhm

Phones: 24 Ohms

Memory Scene Memory: 8


  • Faders:
    • Pitch
    • Formant
    • Balance
    • Reverb
  • Knobs:
    • Volume
    • Mic Sens
    • Auto Pitch
    • Key
  • Buttons:
    • Robot
    • Megaphone
    • Vocoder
    • Harmony
    • Manual
    • Bypass
    • Memory / Effect Variation x 4

Effect Type:

  • Robot
    • Normal
    • Octave-1
    • Octave+1
    • Feedback
  • Megaphone
    • Megaphone
    • Radio
    • BBD Chorus
    • Strobo
  • Vocoder
    • Advanced
    • VP
    • Talk Box
    • Spell Toy
  • Harmony
    • +5
    • +3
    • +3, -4
    • +3, +5
  • Reverb
    • Reverb
    • Echo
    • Tempo Delay
    • Dub Echo

Indicator Lights: Peak

Signal Processing PC Interface: 24-bits

AD/DA Conversion: 24-bits

Sampling Frequency AD/DA Conversion: 44.1, 48, 96, 192 kHz


  • Power Supply:
    • 4 x Rechargeable Ni-MH battery (AA, HR6)
    • 4 x Alkaline battery (AA, LR6)
  • USB Bus Power: Obtained via USB port
  • Current Draw: 500 mA

Battery Life (approx.):

  • Alkaline Battery (phantom power: Off): Approx. 6 hours
  • Alkaline Battery (phantom power: On): Approx. 4 hours
  • Rechargeable Ni-MH Battery (phantom power: Off): Approx. 7 hours
  • Rechargeable Ni-MH Battery (phantom power: On): Approx. 5.5 hours

Dimensions: 174 x 133 x 58 mm

Weight: 554 g


For more information, please visit the manufacturer's website.