There are 3 repositories under polyphonic topic.
A lightweight yet powerful audio-to-MIDI converter with pitch bend detection
A lightweight yet powerful audio-to-MIDI converter with pitch bend detection.
DSP algorithms for chord detection + key estimation
Teensy synth made simple.
Implementation of a paper "Polyphonic Music Generation with Sequence Generative Adversarial Networks" in TensorFlow
Arduino polyphonic synthesizer project (not a Moog) for ESP32 - STM32 - Teensy and more
Code for the Digital Handpan - A project using capacitive touch on the Teensy in conjunction with the Teensy Audio Shield.
Affordable DIY polyphonic hybrid single cycle / analog synthesizer
Port of the Haskell School of Music to Purescript
Some interesting transcription model wrapper
Kicad schematics and PCB layout for an 8 channel ADSR based on CEM3310/AS3310
GliGli based Prophet 600 firmware upgrade
Polyphonic Synthesizer built in React using Web Audio API
16 to 8 channel multiplexer to select waveforms in a polysynth
Subtractive polyphonic synthesizer with MIDI support using minimal libraries - crossplatform
Control board schematics and PCB for my polyphonic synthesizer
Waveshaper Polyphonic Synthesizer for PureData
Polyphonic Sampled Sound Synthesizer Project using a Raspberry Pi
Using the Tone.h library, here is a simple code for a four voice square wave piano.
Polyphonic synthesizer based on Teensy 3.5
Subtractive polyphonic synthesizer made with Tone.js and Vue.js