rumpsound lets us use audio devices on the Hurd. There is an experimental/basic hurd rump audio translator that exists. The translator runs at /dev/audio, which is somehow similiar to a Solaris audio device. Any application that supports pulseaudio, can play through this device.

Some Hurd developers, believe that pulseaudio may not be the best choice for supporting sound on the Hurd. Damien Zammit has several ideas how to get proper sound support on the Hurd. The audio page has more information.