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.
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
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.
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.
Maximum Recording Time
Approximately 24 seconds
7 segments, 4 characters (LED)
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)
Rechargeable lithium-ion battery
Obtained via USB port (USB bus power)
Expected battery life under continuous useApprox. 3.5 hours
* These figures will vary depending on the actual conditions of use.
Expected battery charging timeApprox. 3 hours
* To charge the unit, use the USB port of a computer or a commercially available USB power supply adaptor (5 V, 500 mA or higher).
Leaflet ”Read Me First”
USB Type-C to USB Type-A cable
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