“I recently have updated “ESP WiFi Microphone” project to rev 1.3 and now the revision 1.4 is available which is stronger and more stable than rev 1.3.
This project is compatible with both of ESP8266 and ESP32 modules and you can simply upload it on NodeMCU, ESP32 DEVKIT and other similar boards.
In the latest revision I have increased the audio bit-rate of ESP32 up to 192Kbps and ESP8266 up to 110Kbps.
ESP32 works in 16KHz sample rate with 12 bit resolution and ESP8266 works in 11KHz/10bit.
Also there was a bug in secure link and I have fixed this bug too.”