Electric guitars howl, drum machines crumble, and suddenly you’re sculpting a living wall of sound that never quite sits still. Audrey II turns feedback into an instrument in its own right, inviting you to play the edge between tonal resonance and beautifully broken noise.
Deaftone Audio’s stereo feedback generator is built around a Karplus Strong string model, using a digital string-waveguide at its core to set the rough fundamental pitch via a delay line frequency control. Instead of the usual pluck or burst of noise, Audrey II continually feeds the model with inaudible white noise, staying silent until you wake it up with the feedback intensity control. Once engaged, the signal cycles through soft-clipping distortion, reverb, gentle lowpass and highpass EQ, and a longer body delay before returning to the string model, turning each adjustment into shifts in timbre, overtones, and intensity.
A tape-style delay with a long maximum time and dedicated repeat control lets you push sounds into infinitely growing, saturating echoes that warp and wobble in stereo. The feedback-character joystick places frequency on its horizontal axis and body on its vertical axis, while separate left and right outputs and USB-C power complete Deaftone Audio’s distinctive desktop form factor. Its open-source digital engine originated with Infrasonic Audio for Synthux Academy, but this tactile enclosure gives the design a clearly different performance identity.
