I was looking for some good code to steal, and I ran across QasMixer (http://xwmw.org/qasmixer/). It is an ALSA mixer application very much like the CLI `alsamixer`. My favorite feature is that it allows you to browse and manipulate /all/ of the cards on your machine at the same time. (In contrast, with alsamixer you have to start another process with something like `-c 1` for your other sound cards.) QasMixer used to be called Alsamixer-Qt4. I have absolutely no affiliation with QasMixer, I just think it's a very useful and well-done application. -gabriel