ESP32 Sound to a Web Browser

Published by pschatzmann on

I was wondering what the easiest way would be to provide sound generated on a ESP32 to a Web Browser: I got distracted when I googled the topic “music streaming” and everything suddenly turned out to be very complicated.

So I got back to my original idea: Just change the Server from the examples directory to return something that a Web Browser would recognize: The simplest audio file format for this purpose is WAV. It’s basically just raw audio data prefixed with a header.

Quite some time ago I started with my implementation for a simple WAV encoder and decoder and I finally managed to get it into a shape where things are usable and to my surprise this approach is working pretty well…

You can find the examples on Github.

see also:

  1. Docker and Treafik – A Comprehensive Tutorial
  2. PWM Audio Output support for the “arduino-audio-tools” Arduino Library
  3. Audio Streaming – The Opus Codec
  4. Implementing a Synthesizer for the Raspberry PI and the ESP32 – Introduction
  5. Simple HTTP Requests on Arduino Microcontrollers
  6. The Synthesis Toolkit (STK) Library for the Arduino ESP32 – Getting rid of Files
  7. An MP3 Encoder for Arduino ?
  8. Audio Encoders and Decoders for Microcontrollers
  9. The Most Beautiful Radio Music Player for the ESP32
  10. Bluetooth A2DP – Streaming of Files on a SD card
Categories: ArduinoMachine Sound
Tags:

2 Comments

Anonymous · 13. July 2022 at 4:57

Hi, can you update the GitHub address? The above address already shows 404

Reply

    pschatzmann · 22. July 2022 at 10:54

    Done

    Reply

Leave a Reply

Avatar placeholder

Your email address will not be published. Required fields are marked *

Related Posts

Arduino

Arduino Audio Tools: Introducing Pipelines

Currently it is already possible in the Arduino AudioTools Library to define some processing chains: Audio Objects are connected to other objects e.g. by adding the dependent object as parameter in the constructor. Since the Read more…

Arduino

ESP32-A2DP: Redesigning the I2S output

I am providing a Bluetooth A2DP audio library for the ESP32, which can receive audio from a Bluetooth Source (e.g. a mobile phone) and play it via the I2S API provided by the IDF framework. Read more…

Arduino

Arduino Audio Tools: Using Tasks

So far I have always used the Arduino loop to do the audio processing with the hint, that there must not be any longer delay added to the processing. If you have some blocking functions Read more…