Disable PulseAudio flat volumes to prevent it from pushing volume level to max

[Thomas Daede]

In the case of Youtube, you shouldn't be having any issues because
Mozilla switched to using a soft mixer internal to Firefox:

https://bugzilla.mozilla.org/show_bug.cgi?id=1046814

If you still have issues, you should report them upstream.

(note that this means all website volume sliders are designed to behave
as a mixer, not as flat volumes)

On 09/21/2015 04:59 PM, Michael Catanzaro wrote:
> That's definitely not correct. With flat volumes, applications can and
> do set the system volume to 100%. I've received numerous complaints
> about this. It's particularly frustrating when watching YouTube videos,
> since YouTube sets the system volume to 1 when starting a video. We are
> still waiting for some promised "browsers API" in PulseAudio to fix
> this easily.