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  equo install paprefs pavucontrol paman padevchooser pavumeter

The installation of these tools automatically creates the following icons in the Kickoff > Applications > Multimedia menu:

Capture Volume Meter PulseAudio Volume Meter (Capture)

Device Chooser PulseAudio Device Chooser

Playback Volume Meter PulseAudio Volume Meter (Playback)

PulseAudio Manager

Volume Control PulseAudio Volume Control

I launched the last of these, Volume Control, and clicked on the Output Devices tab. I selected Show All Output Devices, and on my laptop there are two devices shown: dmix:0 and Internal Audio Analog Stereo. I made sure that none of the output devices was muted (clicking on the speaker icon toggles muting on/off). Then I clicked on the down arrow next to the 'Lock channels together' button for dmix:0, and ticked Default.

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