Git to help you setup pulse audio as a system wide service. this has been tested and found to work on Raspberry Pi
sudo
should be used only where indicated.sudo apt-get update
sudo apt-get install git
cd /home/${USER}/
git clone https://github.com/shivasiddharth/PulseAudio-System-Wide
cd ./PulseAudio-System-Wide/
sudo cp ./pulseaudio.service /etc/systemd/system/pulseaudio.service
systemctl --system enable pulseaudio.service
systemctl --system start pulseaudio.service
sudo cp ./client.conf /etc/pulse/client.conf
sudo sed -i '/^pulse-access:/ s/$/root,pi/' /etc/group
All done. Now you should have PulseAudio as a system service.