/usr/share/pulseaudio/ is in pulseaudio 1:1.1-0ubuntu15.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pulseaudio/alsa-mixer/
/usr/share/pulseaudio/alsa-mixer/paths/
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-aux.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-dock-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-fm.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-front-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-internal-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-linein.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic-line.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-rear-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-tvtuner.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-video.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-desktop-speaker.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones-2.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-lfe-on-mono.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-mono.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-speaker.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-0.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-1.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-2.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-3.conf
/usr/share/pulseaudio/alsa-mixer/paths/iec958-stereo-output.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/
/usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/extra-hdmi.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/kinect-audio.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/maudio-fasttrack-pro.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-audio4dj.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-audio8dj.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-korecontroller.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-traktor-audio10.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-traktor-audio6.conf
/usr/share/pulseaudio/alsa-mixer/profile-sets/native-instruments-traktorkontrol-s4.conf