{"repo":"danilogcrf2-oss/ESP32Synth","free":true,"listed":false,"github":"https://github.com/danilogcrf2-oss/ESP32Synth","clone":"git clone https://github.com/danilogcrf2-oss/ESP32Synth.git","description":"Polyphonic synthesizer with up to 350 voices/channels for the ESP32 dual core family, offering high-fidelity audio (48kHz @ 32bit).","language":"C++","stars":308,"topics":["audio","audio-player","audio-processing","esp32","esp32s3","synthesis","synthesizer","diy-electronics","i2s","i2s-audio"],"license":"MIT","category":"media-processing","readme_excerpt":"ESP32Synth v2.4.3 — Highly Optimized Bare-Metal Synth Engine for Embedded Polyphony A high-performance, polyphonic audio synthesis library for the ESP32 series (including S3, S2, C3, C6, etc.). Engineered for extreme bare-metal optimization, low-latency rendering, massive voice density, custom DSP hooks, and direct filesystem/SD-card streaming. Dual-framework support ensures compilation in both Arduino IDE and VS Code (PlatformIO) under either Arduino or native ESP-IDF. --- 📖 Table of Contents 1. Architectural Philosophy: Why 500 Voices? 2. PlatformIO (VS Code) & ESP-IDF Integration 3. Multi-Core & Extended Chip Family Support 4. Core Configuration & Latency Tuning 5. Memory Footprint & Hardware Isolation 6. Unified API Reference 7. The Power of SMODE PWM (LEDC Bare-Metal Audio) 8. Dual-Framework Filesystem Streaming (SD Card) 9. External Protocol Pull Mode (A2DP Bluetooth & Wi-Fi) 10. Fixed-Point Advanced DSP & Custom Synthesis Blocks 11. Development Tools & Advanced Troubleshooting --- 1. Architectural Philosophy: Why 500 Voices? The extreme polyphony achievements of ESP32Synth (300+ voices on classic ESP32 chips, up to 500 on ESP32-S3) are not merely for playback metrics. This density serves as a mathematical proof of efficiency . By eliminating float operations, hardware divisions, and branch instructions from the hot audio rendering path, we achieve extreme CPU headroom. This unused processing power allows developers to build highly complex synthesis blocks, such as: 6-","default_branch":null,"files":null,"tree":[],"storefront":"/r/danilogcrf2-oss","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/danilogcrf2-oss/ESP32Synth/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}