Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32

Play mp3 files from SD via I2S

Very Tiny Palmtop Vector Network Analyzer

Various HDL (Verilog) IP Cores

esp32 version of Ka-Radio (https://github.com/karawin/Ka-Radio) by jp Cocatrix

RFID-controlled musicplayer powered by ESP32

Sound Level Meter with ESP32 and I2S MEMS microphone

Examples for I2S support on microcontrollers that run MicroPython

all-in-one audio board, works specially well with LogitechMediaServer

ESP32 Sound recorder with simple code in arduino-esp32. (I2S interface)

USB Hi-Res Stereo Audio DAC using STM32F411 / 401 "Black Pill" development board and Texas Instruments PCM5102A / Philips UDA1334ATS DAC modules

Using an I2S MEMS microphone on an ESP32

《FPGA应用开发和仿真》（机械工业出版社2018年第1版 ISBN:9787111582786）的源码。Source Code of the book FPGA Application Development and Simulation(CHS).

An Arduino audio DSP library for the Espressif ESP32 and probably other 32 bit machines

Bluetooth Visual Speaker | 藍牙視效音響 | 基於ESP32的音樂全彩光立方視覺效果控制器

Audio controller (I2S, SPDIF, DAC)

low noise low cost stm32 usb-audio dac with optional level meter

tips, tricks, and examples of using CircuitPython synthio

32bit I2S DAC library for Raspberry Pi Pico

ESP32 Music Player with simple code in arduino-esp32 (I2S interface)