Roland AIRA Compact E-4 Voice Tweaker

  • Item # 1569769
  • Model # E-4

The Roland AIRA Compact E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops and glitches your voice and anything else you feed it. Flip through hands… Learn More


Reserve Now! This item is backordered but it is available to reserve now. You will not be charged until the item ships.

Ship to Store

2-7 business days

Vocalize and jam with powerful voice transformation tools, high-quality effects and an onboard looper.

The Roland AIRA Compact E-4 Voice Tweaker is an outrageously jammable box of fun that harmonizes, auto-pitches, vocodes, loops and glitches your voice and anything else you feed it. Flip through hands-on controls to manipulate the sound, and chain in AIRA Compacts and other electronic instruments, and let them ride in perfect sync. Inspiring Roland Vocal Processing The AIRA Compact E-4 combines powerful voice transformer tools and standard vocal effects with a tactile interface that’s meant to be played. This lean, mean machine puts a treasure trove of top-quality processing in a go-everywhere gadget that’s endlessly enjoyable and amazingly affordable. Perform With Sound By working the Compact E-4’s inviting panel, you can go from traditional vocal enhancements to punchy beatboxed grooves to striking alien soundscapes—all in a single performance. Select different sonic shapers, trigger looper controls, cycle through Scatter effects, and tweak pitch, formant and more in the flow. Harmonic Explorer Take your singing to the next level with automatic harmony effects. Set the key and chord voicing on the fly and bring head-turning flair to any song. And with Auto Pitch, you can dial in everything from subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks. Channel Your Inner Robot Use direct-access tools to instantly change your vocal gender, conjure sounds from outer space or transform yourself into a mechanical persona. There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the AIRA Compact E-4’s pitch functions or an external MIDI keyboard for an endless variety of textures. Loop and Scatter Turn one voice into an entire orchestra using the 24-second looper. Overdub layer after layer with the AIRA Compact E-4's effects to create wild, vocal-driven rides. Then slice and dice with the expressive Scatter knob, which chops your sound into colorful bits that you control with a twist. Link Up and Go Connect a handheld mic to the front input for performing, or use a gaming headset or the inline mic on your earbuds to bring fresh vocal fun to your next livestream or podcast. Sync with other AIRA Compacts like the T-8 Beat Machine and J-6 Chord Synthesizer to expand your range. Or, interface with computer DAWs, mobile music apps and hardware instruments via USB-C or MIDI. Everywhere at once Roland's AIRA Compact E-4 creatively accentuates vocals anytime and anywhere. The lithium-ion battery provides up to 3.5 hours of power per charge, and the rugged Roland build will support inspired magic and mayhem for a long, long time. Order the AIRA Compact E-4 Voice Tweaker now.


  • Vocal performance tool with powerful voice transformer effects
  • Instantly shape the sound with pitch and formant sliders
  • Advanced vocal effects including Auto Pitch, harmony and vocoder
  • Dial up unique rhythmic effects with the Scatter knob
  • Process the sound output with high-quality reverb, echo, tempo delay and chorus effects
  • Low-cut filter and noise gate to eliminate unwanted sounds
  • 24-second looper with unlimited overdubbing, undo/redo and automatic BPM detection
  • Supports external MIDI control of pitch, harmony and vocoder functions
  • 1/4" mic input with wide-ranging gain control
  • Headphone output with support for an inline mic
  • Comprehensive connectivity with audio, MIDI and sync I/O plus AIRA Link
  • Class-compliant USB-C audio/MIDI interface—no drivers needed
  • Lithium-ion battery with up to 3.5 hours of operation per charge
  • Sturdy construction and robust controls
  • Connect to other AIRA Compacts and standard MIDI devices with optional BOSS TRS MIDI cables

Technical Specification

Roland AIRA Compact E-4 Voice Tweaker


  • Maximum recording time: Approx. 24 seconds
  • Display: 7 segments, 4 characters (LED)
  • Effect Types
  • Connectors
  • SYNC (IN, OUT) jacks: Miniature phone type
  • MIX (IN, OUT) / HEADSET jacks: Stereo miniature phone type (Stereo, CTIA)
  • MIDI (IN, OUT) jacks: Stereo miniature phone type
  • MIC IN jack: Stereo phone type
  • USB port: USB Type-C (audio, MIDI)


  • Power supply: Rechargeable lithium-ion battery, via USB power
  • Current draw: 500mA
  • Expected battery life under continuous use: Approx. 3.5 hours (these figures will vary depending on conditions of use)
  • Expected battery charging time: Approx. 3 hours
  • *To charge the unit, use a USB port of a computer or a USB power supply adaptor (5V, 500mA or higher)
  • Dimensions and Weight
  • Dimensions (WxDxH): 7-7/16" x 4-1/4" x 1-11/16"
  • Weight (including batteries): 11 oz.


  • Leaflet
  • USB Type-C to USB Type-A cable