Roland AIRA Compact E-4 Voice Tweaker Sound Module (E-4)

The Roland AIRA Compact E-4 Voice Tweaker is a compact vocal effects and sound-processing module designed for creative live performance, music production, streaming, and experimentation. It combines harmonizing, pitch shifting, vocoding, looping, and glitch-style effects in a hands-on format that makes real-time sound manipulation easy and expressive.

The E-4 features intuitive controls for shaping vocals and other audio sources, allowing you to create everything from enhanced natural vocals and beatboxed rhythms to robotic voices and futuristic soundscapes. Its built-in 24-second looper supports overdubbing, while the Scatter effect can chop and transform sounds for rhythmic and glitch-inspired performances.

Features

• Compact vocal effects and sound-processing module
• Harmonizer, auto-pitch, vocoder, looper, and Scatter effects
• 24-second looper with overdubbing capability
• Hands-on controls for pitch, formant, effects, and sound manipulation
• Vocoder with onboard synthesizer waveforms
• Supports external MIDI keyboards for expanded vocoder control
• Front microphone input for vocal performances
• Compatible with gaming headsets and inline earbud microphones
• Syncs with other AIRA Compact instruments
• USB-C and MIDI connectivity for computers, mobile apps, and external hardware
• Built-in rechargeable lithium-ion battery
• Up to 3.5 hours of operation per charge
• Rugged and portable Roland construction