Show that audio is being captured, or at least facilitate mike test

[lcreid]

At a minimum, make it easy to pull up the audio input tool so the user can check if audio is being capture. More advanced would be to somehow actually monitor sound level for the recording.

[lcreid]

There is a gem for pulseaudio: https://rubygems.org/gems/pulseaudio.

[lcreid]

The gem for pulseaudio says it uses pactl, the command line program. It doesn't get me the volume info in real time.

http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Clients/WritingVolumeControlUIs/ is a good introduction to volume with PulseAudio. If I knew how to get at the low-level PulseAudio stuff in Ruby, I'd go back to the above link.

http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Clients/ApplicationProperties/ talks about properties to set up that allow PulseAudio to better know who's talking to it.

[lcreid]

To run the gnome applet to control volume, etc:

/usr/bin/gnome-control-center sound

[lcreid]

There's no stock icon for a volume control. I implemented a button to call up the gnome applet.

[lcreid]

Add a button to bring up the sound control. Will open another issue for actual sound monitoring.