Comment 24 for bug 566381

Just to add, the alsa suggestion of comment 20 is not appearing to work on this laptop (Intel Corporation N10/ICH 7 Family High Definition Audio Controller), and it also is bizarre that you need to specially load the loop-back module from the command line to allow mic mixing in to the audio stream.
Why is that? Due to it not working well enough? It should be a tick-box or similar in the "Sound Preferences..." GUI so non-technical users can do what should be simple & straightforward.