Roland’s Aira Compact series merges the musical magic of decades of innovation with unmatched portability. With the E-4 Voice Tweaker, Sweetwater’s 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.
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.
Specification | Detail |
---|---|
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) |
MIDI I/O | 2 x 1/8" TRS (in, out), USB |
Headphones | 1 x 1/8" |
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. |
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