http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-input-front-mic.conf
you need add Mic source into the above conf
http:// cgit.freedeskto p.org/pulseaudi o/pulseaudio/ tree/src/ modules/ alsa/mixer/ paths/analog- input-front- mic.conf
you need add Mic source into the above conf