Before compiling, some edits are needed in the Audio Library (Program Files\Arduino\hardware\teensy\avr\libraries\Audio)
- in input_i2s.h & output_i2s.h comment out the begin function, it will look like this:
{}//begin(); }
- in control_AK4588.h change PIN_PDN to pin 17
#define PIN_PDN 17
- in control_AK4588.cpp, line 133 & 135, there is an hardcoded digitalWrite, change it to
PIN_PDN