[et-mgmt-tools] sound configuration

[Bob Tennent]

An earlier message

http://www.redhat.com/archives/et-mgmt-tools/2007-June/msg00021.html

says

  Audio devices are on the radar but there's no support yet. For the
  moment you'll have to manually modify the guest config.

Could I see an example of a sound configuration in a guest.xml file? I
can see in documentation examples what the command-line options look
like but I don't know where the XML format is documented.

Bob T.