<p><br>
><br>
> If we expose this information, UIs can use this to make better<br>
> decisions about what icon to display.<br>
><br>
> Related bug: <a href="https://bugzilla.gnome.org/show_bug.cgi?id=689635">https://bugzilla.gnome.org/show_bug.cgi?id=689635</a></p>
<p>does pulseaudio need to differentiate </p>
<p>1)Analog speaker and optical / coaxial digital<br>
2) mic , headset mic and line in<br>
</p>