The esp8266 is quite powerful for audio applications with a CPU frequency of 160MHz and 4MB flash and easily outperforms the Volca Sample with a WiFi/Web GUI.

The goal for this blog series is to build synthesizers on the esp8266 platform so we will also go through adding MIDI, Sync24 and trigger inputs.

And use the WiFi for easy uploading and editing of samples.

But the PDM DAC also works for webradio and other audio streaming applications.

We will use the Wemos D1 Mini board with the Arduino IDE and all the source will be available.”