source https://github.com/evancohen/smart-mirror
I installed it in order but the microphone is not recognized.

pi@raspberrypi:~/smart-mirror $ npm start

smart-mirror@0.0.25 start /home/pi/smart-mirror
electron main.js

Remote listening on http://192.168.XXX.XXX.:8080

pi@raspberrypi:~/smart-mirror $ npm run sonus

smart-mirror@0.0.25 sonus /home/pi/smart-mirror
node sonus.js

pi@raspberrypi:~/smart-mirror $

Raspberry pi 3 B+, node 8.16.2, npm 6.4.1 / OS 2018 ?? ?? Stretch