Voltage-Controlled Audio DSP Device

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Introduction

We proposed, designed, and built a multi-effect audio processing unit centered around the Teensy microcontroller. Capable of delay, reverb, and tremolo effects, the device features audio DSP processing with minimal latency such that it can be used in real-time while playing an instrument. The device features four knobs: one to switch between algorithms and three other knobs that control algorithm parameters. The device also features an analog compressor and gain staging on both the input and output sides of the Teensy. We designed a PCB and 3D printed enclosure with an attached Teensy, but there were some manufacturing and design errors in the PCB, so we demoed with a breadboard prototype.

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Team