Microphone
Audio System Design Tool : https://www.pjrc.com/teensy/gui/index.html?info=AudioOutputI2S
Teensy 3.2 / Microphone SHP0645 / USB
Teensy 3.2 / Microphone SHP0645 / DAC
Audio System Design Tool : https://www.pjrc.com/teensy/gui/index.html?info=AudioOutputI2S