Roland E-4 AIRA Compact Voice Tweaker

The Roland E-4 is a Voice Tweaker that 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.

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Roland E-4 AIRA Compact Voice Tweaker

The Roland E-4 is a Voice Tweaker. It harmonizes, auto-pitches, vocodes, loops, and glitches your voice and anything else you feed it.

Any noise you feed E-4 can effectively be

  • harmonized
  • auto-pitched
  • vocoded
  • looped
  • glitched

 

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.

Perform With Sound

With the E-4’s inviting panel, you can go from traditional vocal enhancements to punchy beatboxed grooves to striking alien soundscapes. And you can do this all in a single performance!

Furthermore, Select different sonic shapers, trigger looper controls, cycle through Scatter effects, and tweak pitch and formant in the flow.

E-4, a Harmonic Explorer

Furthermore, 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.  Above all, with Auto Pitch, you can dial in everything! This includes subtle tuning fixes to the hard-tuned sounds heard in mainstream pop tracks.

Channel Your Inner Robot with E-4

Also, 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 with E-4

What’s more, you can 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. Additionally, interface with computer DAWS, mobile music apps, and hardware instruments via USB-C or MIDI.

Everywhere At Once

Finally, the E-4 creatively accentuates vocals anytime and anywhere. Furthermore, the lithium-ion battery provides up to 3.5 hours of power per charge. Additionally, 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 functions
  • 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 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

Effect Type: AUTOPITCH, HARMONY, VOCODER, PITCH, FORMANT, SCATTER, REVERB & LOOPER

Maximum Recording Time: Approximately 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

Weight: 290g

Accessories: Leaflet, USB Type-C to USB Type-A cable

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