Audio Streamer / Webradio

First planned as Webradio, this is now a audio streamer with a powerful DSP chain, line in and multiple use cases.

Webradio Streams with online database, enter your own stream urls.
Save every stream as favourite.

Extremely powerful DSP processing chain with Automatic Gain Controls, Ducker, EQ, Compressor/Limiter, Multiband Compressor and Crossover.

Input and Output via I2S DAC and ADC modules.

REST API to control volume, source and favourites via any webbrowser or home automation system. Also returns a huge status update.

Needs a ESP32-S2 with PSRAM requried!

Use the supplied flash tool - it also takes account of the needed partitions!

Pinout:
I2S_MCLK GPIO18
I2S_BCLK GPIO15
I2S_LRCK GPIO16
I2S_DOUT GPIO17
I2S_DIN GPIO38