Some apps have too generic names

[johnhoran]

Some applications, mainly games, rely on audio middleware. In this case, the name presented to pulseaudio is generic and doesn't reflect the name of the application actually making sound. Similarly if you watch video through a flash player, the application name is alsa container rather than the name of the browser. In both of these cases it should be possible to get the name and icon from the window instead, most of the time.

[ghost]

This is more of upstream issues, we can collect links to original bugreports here. For example GNOME Web has many of WebKitWebProcess, of which only one outputs any sound.

[ghost]

https://github.com/scottt/AdvancedVolumeMixer does this, so maybe I'm wrong.