<machine name="bongo_sound" sourcefile="galaxian/galaxian_a.cpp" isdevice="yes" runnable="no" isbios="no" ismechanical="no">
  <description>Bongo Custom Sound</description>
  <device_ref tag=":_tmp:discrete" name="discrete" />
  <chip type="audio" tag=":discrete" name="Discrete Sound" />
  <sound channels="0" />
</machine>