Espressif Systems has been doing a good job with their ESP8266 product (of course ... I2S should be workable with only a little bit of datasheet-poking and head-scratching. Of course, you could ...

you could hit up the datasheet. Instead, here we’re looking at the real-life performance of three different modules: the WeMos D1 mini for the ESP8266, the Lolin 32 for the ESP32, and our demo ...