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Studio Vocal Suite Anywhere You Need It

Roland’s Aira Compact series merges the musical magic of decades of innovation with unmatched portability. With the E-4 Voice Tweaker, sound experts agree that the only thing “compact” is its size. This on-the-go vocal processor draws from Roland’s robust repertoire to deliver a host of FX in a battery-powered, pocket-sized module. Boasting satisfying tactility, the E-4's streamlined interface encourages exploration of its Auto Pitch, harmony, and vocoder functions, alongside a host of FX and processing modes, with no shortage of I/O options. Rock it on its own or plug it into your system — whichever route you choose, the techno-wizardry of this sleek system lets you construct the perfect vocal visage.

Powerful, portable play

The E-4’s deceptively simple interface hides a world of vocal opportunity. Auto Pitch, harmony, and vocoder effects are just the beginning. Reverb, tempo, delay, and chorus effects are freely available throughout the looper’s 24-second recording space, all in real time. The Scatter knob yields compelling rhythmic flares, situated alongside pitch, formant, and reverb sliders, dealing a satisfying user experience. Shape your output with the onboard low-cut filter and noise gate, with unlimited overdubbing, undo/redo, and automatic bpm detection. Craft everything from serene vocal vistas to volatile soundscapes, thanks to the E-4’s intuitive integration that is comprised of a 1/4-inch mic input and audio, MIDI, and sync I/O. Class-compliant USB-C/MIDI interfacing requires no additional drivers, and the onboard pitch and vocoder’s melodic parameters can be controlled externally.

Roland Aira Compact E-4 Voice Tweaker Features:

  • Lightweight and compact design means portability without sacrificing power
  • Vocoder, Auto Pitch, and harmony modes deliver studio-ready fine-tuning
  • Straightforward formfactor ensures accurate, satisfying tactility
  • Hit the Scatter knob to take your vocals on a wild rhythmic ride
  • Robust range of processing and FX allow for limitless vocal modulation
  • Historic Roland synth waveforms let you craft unique vocoder patterns
  • Onboard MIDI, audio, and synch I/O, as well as USB-C, provide endless interoperative potential with DAWs, controller interfaces, and even additional Aira Compact devices
  • Construct a symphony of sounds with the unlimited overdubbing capabilities in the 24-second looping window
  • Rechargeable lithium-ion battery means 3.5 hours of studio-ready FX, all on the go
  • Weight: 11 oz.
  • Dimensions: 188 (W) x 106.5 (D) x 41.7 (H) mm / 7.4 (W) x 4.25 (D) x 1.7 (H) inches

Tech Specs

  • Processor Type:Vocal Processor
  • Number of Channels:1
  • Form:Desktop
  • Looper:24 seconds
  • Effects:Auto Pitch, Harmony, Vocoder, Pitch, Formant, Scatter, Reverb
  • Analog Inputs:1 x 1/4" (mic), 1 x 1/8"
  • Analog Outputs:1 x 1/8" (mix out/headphones)
  • MIDI I/O:2 x 1/8" TRS (in, out), USB
  • Other I/O:2 x 1/8" (sync in/out)
  • USB:1 x USB-C
  • Computer Connectivity:USB
  • Power Source:Rechargeable Lithium-ion battery / USB bus power
  • Power Usage:500mA
  • Height:1.64"
  • Width:7.40"
  • Depth:4.19"
  • Weight:0.63 lbs.
  • Manufacturer Part Number:E-4
Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST.

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