The Roland VT-4 is a standalone hardware voice transformer that lets you radically shape, alter, and mangle your vocals in real-time without the need for a computer. It is a popular tool for vocalists, DJs, electronic musicians, and content creators.

Key Features

• Hands-On Control: No menu diving required. Everything is controlled via physical faders, knobs, and buttons on the faceplate.
• Pitch and Formant Faders: Dedicated sliders let you adjust the pitch and formant of your voice instantly to alter gender or create alien-sounding tones. [1]
• Four Core Effect Engines:
• • Robot: Produces expressionless robotic or pitched voices.
  • Megaphone: Creates lo-fi distortion and radio static effects.
  • Vocoder: Generates classic vocoder textures (VP-style).
  • Harmony: Adds real-time 3rd or 5th harmonies.
• Auto-Pitch: Applies subtle real-time pitch correction or hard-tuned "autotune" effects, with a manual key-selection knob.
• Ambience Effects: Dedicated fader for adding high-quality Reverb and Echo/Delay presets.
• Scene Memory: Save up to 8 of your favorite custom effect setups for quick recall during a live set.

I/O and Connectivity

• Inputs: Rear combo jack (XLR / 1/4-inch) with switchable +48V Phantom Power for studio condenser mics, plus a front-panel 3.5mm (1/8-inch) jack designed for headset mics or portable lavaliers.
• Outputs: Stereo/mono Line Outputs (1/4-inch jacks) and a dedicated 3.5mm headphone jack. Outputs can be configured to split wet/dry channels.
• MIDI In: Connect a MIDI keyboard to lock the Harmony and Vocoder engines to your specific musical chords.
• USB Audio Interface: Connect to your computer or mobile device for streaming or recording, carrying both audio and power on a single cable.

Power Specs & Portability

• Power Sources: Can be powered via 4x AA batteries (for roughly 4 to 7 hours of life, depending on phantom power usage) or via USB bus power.
• Form Factor: Compact, lightweight, and highly portable, measuring roughly 174 mm x 133 mm x 58 mm and weighing just over 500 grams.