Here described steps to record audio to file and play it using linux arecord and aplay utilities.
You have to stick WM8960 audio module to NetSoM development board. Then plug some audio speakers or headphones to audio module. That audio module has onboard microphones so no need to use headphones with microphone. Then just power up development board and connect via SSH.
Audio file might be recorded using arecord utility:
To play previously recorded audio file use aplay utility:
That is it. pretty simple: