Teensy Polyphonic Chord Synthesizer

Embedded polyphonic synth with real-time audio generation + sensor input.

EmbeddedDSPHardware
Teensy Polyphonic Chord Synthesizer

Gallery

I2C Mapping
I2C Mapping
Audio Adaptor Pins
Audio Adaptor Pins

Overview

A Teensy-based instrument that generates chords in real time while reading physical inputs and producing immediate feedback.

Built to practice embedded architecture, real-time constraints, and signal pipelines from input → processing → output.

How it works

  • Inputs are sampled and debounced.
  • Chord selection maps inputs to note frequencies.
  • Audio callback generates waveforms and mixes voices (polyphony).
  • Output is streamed with low latency; UI provides feedback.

What I learned

  • Interrupt/audio callback design and avoiding blocking work.
  • State machines for robust UI input handling.
  • Managing polyphony and CPU budget on a microcontroller.
  • Hardware/software integration and debugging workflow.