1. At work use papref to "Enable network access to local sound devices"and restart computer.
2. Copy pulse cookie from work to home: ~/.config/pulse/cookie so that work and home computer share same secret (cookie).
3. At work start: sudo start-pulseaudio-x11
4. At work open reverse tunnel for pulseadio: ssh -X -R 9998:localhost:4713 home
5. At work use vnc to connect to home.
6. Once connected using vnc to home, start firefox (for example) at home computer using: PULSE_SERVER=localhost:9998 firefox
The instructions are based on this: http://psung.blogspot.com/2011/09/network-audio-with-pulseaudio-made.html