As a continuation of previous audio feedback and instrumental prototyping projects, this analog audio feedback system generates a Helmholtz-like standing wave inside a resonant semi-sphere. The electronic configuration is based on a generic bullhorn circuit (with an electret mic and two 4ohm transducers) and is filtered through a passive RC low-pass filter. Few components are required and the circuitry can be easily embedded into a variety of hardware interface designs.

> Jason Cress, Graduate Student Researcher

> Video

Additional Project Images
2018