ESP32 Audio Analysis Project

Project Overview

This project utilizes an ESP32 microcontroller and an INMP441 microphone to capture and analyze audio signals in real-time. The results are displayed on an OLED screen, providing instant feedback on various audio parameters.

Key Features:

Sound level measurement in decibels
Fundamental frequency detection
Analysis of time period and magnitude
Three-view OLED display controlled by a button

The system is designed for real-time audio analysis, making it versatile for sound monitoring and educational purposes. Users can switch between three views on the OLED display: decibel levels, frequency, and a list of other parameters, providing a comprehensive audio analysis tool.

Circuit Diagram & Source Code

Circuit Diagram

Output Screenshoot in ESP32 Local Host 1

Output Screenshoot in ESP32 Local Host 2

The circuit diagram above illustrates the connections between the ESP32, INMP441 microphone, OLED display, and the button for view switching. This setup allows for efficient audio capture and real-time analysis.
You can find source code here

Project Demo

The video above demonstrates the functionality of our ESP32 Audio Analysis project. You can see the real-time analysis of audio signals, including decibel levels, frequency detection, and other parameters displayed on the OLED screen.