ESP32 Audio Project - Part II: Bluetooth Receiver Add-on - Hackster.io
ESP32 D1 Mini
10] DIY DSP Bluetooth Speaker with ESP32 - YouTube
GitHub - pschatzmann/ESP32-A2DP: A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF
Using a ESP32-C3 with my Arduino Audio Tools Library - Phil Schatzmann