From Puffer Coat to Personal Subwoofer
Vollebak’s Sonic Jacket reimagines what wearable speakers can be, transforming a white, puffer-style coat into a full-body sound system. Instead of hiding tech inside a discreet shell, the jacket flaunts it: black housings for mini drivers dot the exterior while yellow wires snake across the surface, making it look closer to a sci‑fi costume than everyday outerwear. Built in collaboration with Hollywood special-effects studio FBFX, the design embraces its experimental nature. Vollebak describes it as the world’s first piece of “sonic clothing,” positioned between immersive wearable tech, conceptual fashion and a live‑in science experiment. Rather than placing headphones on your ears or a subwoofer beside you, the Sonic Jacket aims to zip you entirely inside the sound field, turning your torso, arms and even your head into part of the playback system. The result is less about subtlety and more about becoming the bassline.
180 Inward-Facing Speakers and a 4–20,000 Hz Sound Field
At the core of the Sonic Jacket is a dense array of 180 inward-facing speakers, each only 32mm wide and 10mm deep. Mounted in laser-cut holes across the body, arms and hood, these miniature drivers aim their output directly into the wearer rather than broadcasting outward. They cover a wide band from 4 Hz to 20,000 Hz, spanning sub-perceptual low frequencies up to the upper limit of human hearing. To simulate ultra-low ranges that tiny speakers typically cannot reproduce, the control unit can play two slightly different tones—say 100 Hz and 104 Hz—so the body perceives the 4 Hz difference as a beat frequency. This approach turns the wearer into a living resonance chamber, an unconventional speaker enclosure that blends body vibration audio with acoustic playback. Instead of simply hearing music, you become the medium through which the sound field is formed and felt.
Haptic Audio Technology and Mood-Modulating Frequencies
The Sonic Jacket is built around haptic audio technology—the idea that sound can be experienced as both hearing and touch. Vollebak draws on research linking brainwave bands to different mental states: alpha waves (around 8–12 Hz) are associated with relaxation and inward focus, theta waves (4–8 Hz) with deep meditation and sleep, and gamma waves (30–100 Hz) with heightened attention. By routing specific frequency patterns into the body, the jacket aims to nudge mood from calm to highly stimulated, turning audio into a somatic experience rather than background noise. Vibrational cues ripple through the fabric and into the wearer’s skin, blurring the divide between sound therapy experiment and immersive wearable tech. Vollebak leans into this ambiguity, suggesting the jacket could provoke everything from introspection to euphoria, underscoring how tightly haptic sound and physical sensation can intertwine when the body itself acts as the output device.
Controls, Presets and a Library of Frequencies
Instead of pairing with conventional headphones, the Sonic Jacket ships with a dedicated control unit built into the garment. An integrated MP3 player offers 10 preset frequencies, giving wearers a guided introduction to different vibrational patterns. A large physical dial lets users sweep through the spectrum to discover personal sweet spots, from barely there pulses to more intense resonance. For deeper experimentation, a Micro SD reader can store up to 1,000 preset frequencies, effectively turning the jacket into a programmable body vibration audio library. Vollebak is also developing a Bluetooth-connected app, which would allow smartphones to serve as the content hub for future sonic sessions. Rather than just streaming playlists, the interface is designed to let people sculpt frequency experiences, moving wearable speakers away from simple audio playback toward tailored, somatic soundscapes that can be adjusted on the fly.
A Paradigm Shift in Wearable Speakers
Viewed as a piece of audio engineering, the Sonic Jacket is less a novelty and more a prototype for a new kind of listening. Traditional speakers project sound into shared space; even most wearable speakers still treat the human as an external listener. Vollebak’s design flips this model, using the wearer’s body as an acoustic resonance chamber and positioning sound as an inward, intimate phenomenon. That shift raises provocative questions: if audio can be felt as clearly as it is heard, does music become a physical therapy tool, a performance enhancement aid, or simply a more intense form of entertainment? For now, the Sonic Jacket sits firmly in concept territory—price on application and far from commuter-ready—but it hints at where immersive wearable tech could go next. In this emerging landscape, a jacket is not just clothing; it’s a programmable, full-body haptic audio interface.
