ROLAND - e-4 - AIRA Compact - Voice Tweeker
Press and move to zoom.
Mouse over image to zoom.

ROLAND - e-4 - AIRA Compact - Voice Tweeker

Product Code: E-4

Fun, go-everywhere instruments that put Roland’s legendary creative magic in the palm of your hand.

AIRA Compact puts Roland’s legendary creative magic in the palm of your hand. Jam, perform, and develop ideas anywhere with genre-defining sounds. Chain AIRA Compact instruments together to extend your palette or connect with MIDI gear, computers, and music apps to expand your existing rig. Fun, affordable, and easy to learn, AIRA Compact brings serious musical power to creators on the move.

Jam instantly :
AIRA Compact invites you to start making music the instant you power up. With friendly controls, inspiring sounds, and loads of creative tools, you can quickly turn simple ideas into off-the-cuff masterpieces.

Uncommon versatility :
However and wherever you make music, AIRA Compact instruments are there for you. Stow one in a pocket or backpack and compose on the go. Mix and match them for busking, club performing, and livestreams. Or use them as high-quality sound generators and input devices for larger-scale performances and computer music production.

Renowned sonic DNA :
Driven by the advanced Analog Circuit Behavior (ACB) technology found in our top-line instruments, AIRA Compact delivers the real-deal sounds behind decades of hit music. Create with the authentic voices of Roland icons, including TR rhythms, TB basses, JUNO synths, VT effects, and more.

Class-leading connectivity :
AIRA Compact provides ample I/O to interface with everything in your musical world. Synchronize and monitor multiple AIRA Compact instruments from one unit, connect with stereo audio and MIDI devices, and communicate with computers and mobile music apps via USB-C.

Small and mighty :
AIRA Compact strikes the perfect balance between portability and power. Each model is small enough to slip in a pocket and features a tactile panel to jump-start your creative flow. Onboard lithium-ion batteries provide hours of continuous fun per charge. And with Roland’s famous build quality, your AIRA Compact is ready for years of musical exploration.

E-4 Voice Tweaker :

A vocalist’s best friend :

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

The 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 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 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 (good or evil is up to you). There’s also a powerful vocoder, which you can drive from a large pool of onboard synth waveforms, the 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 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 :
The 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.


-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
-¼-inch mic input with wide-ranging gain control
-Headphones output with support for an inline mic
-Comprehensive connectivity with audio, MIDI, and sync I/O plus AIRA
-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



Maximum Recording Time : 24 SECONDS

Display : 7 segments, 4 characters (LED)

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
Obtained via USB port (USB bus power)

Current Draw : 500mA

Expected battery life under continuous use : Approx. 3.5 hours

Expected battery charging time : Approx. 3 hours

Dimensions : 188 (W) x 106.5 (D) x 41.7 (H) mm
7-7/16 (W) x 4-1/4 (D) x 1-11/16 (H) inches

Weight : 290g

Accessories : USB Type-C to USB Type-A cable
CAD $259.99
  • Condition : New
  • Price range : 250$ - 499,99$
  • Availability: In Stock

Recently Viewed

HOSA - USB-306CC - SuperSpeed USB 3.1 (Gen2) Cable
  • CAD $37.99
HOSA - YMM232 - Y Cable - 3.5mm TRS Male to Dual 3.5mm TRS Female
  • CAD $9.49