RFID-controlled musicplayer powered by ESP32

Sound Level Meter with ESP32 and I2S MEMS microphone

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

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

ESP32 application to change a voice to be eg stormtrooper or dalek sounding, either in real time for cosplay or as a recording. Recordings can be downloaded to the browser as a WAV file for playback on a media player

Speak to your ESP32 and it speaks back! Your new personal assistance is tiny, highly intelligent, and ready to be built from your home.

A simple MEMS I2S microphone and audio processing library for ESP32.

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

An Internet web radio based to ESP32

Basic DX9-inspired FM synth Arduino Library for Raspberry Pico RP2040 and RP2350.

ESP32-based voice device for chatting with multiple custom AI bots. Recording questions with I2S microphone, transcribing via ElevenLabs or Deepgram STT, creating response with Groq or Open AI LLM. TTS audio output with custom AI voices via I2S & speaker. Supporting ongoing dialogues, calling bots ‘by name’, real-time web search via keyword.

Code snippets showing how to record I2S audio and store as .wav file on ESP32 with SD card, how to transcribe pre-recorded audio via Deepgram SpeechToText (STT) API, how to generate audio from text via TextToSpeech (TTS) API from OpenAI a/o SpeechGen a/o Google TTS. Triggering ESP32 actions via Voice.

Audio visualization based on an M5StickC (ESP32), i2s microphone, FFT and RGB LED strip.

Heavy compiler (hvcc) sources running on ESP32-DevKitC powered eurorack module

Simple project for live audio streaming and recording from an I2S MEMS microphone (INMP441) over UDP, using an ESP8266 (NodeMCU). The ESP8266 reads stereo 16-bit samples from the microphone via I2S and transmits them as raw UDP packets to a listener PC on the local network.

Stereo digital 2-way crossover filters processing I2S audio (16bit or 24bit) streams

ESP32 sound meter with multiple INMP441 MEMS microphones

Simple project for live audio streaming and recording from an I2S MEMS microphone (INMP441) over UDP, using an ESP32 DevKit C V2. The ESP32 reads audio samples from the microphone via I2S and transmits them as raw UDP packets to a listener PC on the local network.

A spectrum analyzer display for HUB75 RGB LED panels and I2S microphones

esp32 sound recorder trough a pcm1808 adc chip