refer to virtualox 5.0.2 user manual
[--audionone|null|dsound|solaudio|oss|alsa|pulse| oss|pulse|coreaudio] [--audiocontrollerac97|hda|sb16] [--audiocodecstac9700|ad1980|stac9221|sb16]
refer to virtualox 5.0.2 user manual
[--audionone| null|dsound| solaudio| oss|alsa| pulse| oss|pulse| coreaudio] llerac97| hda|sb16] ac9700| ad1980| stac9221| sb16]
[--audiocontro
[--audiocodecst