I always thought Volume Protection activated whenever playback was stopped and then restarted. Which is what it is doing for me at the moment. But maybe it is supposed to only cut in if nothing has played for 30 minutes.
From the
Wiki:
Volume Protection
Volume Protection is a feature to prevent unexpectedly loud output. It is useful in cases where you connect Media Center to a high-gain amplifier where unexpected output at full volume could damage equipment or your ears.
Volume protection does the following:
- Makes it so that it isn't possible to increase the volume by more than 5% at a time (so accidentally clicking 100% on the slider will not go to 100%)
- Makes it so that the volume can not be increased by more than 20% a second
- Makes it so that starting playback if nothing has played for 30 minutes sets the volume to 20% (unless the volume is already lower)
I don't see Volume Protection resetting the volume back to 20% between tracks on a stand-alone MC installation though. I suspect what is happening there is if a separate Control Point is being used, something is sending a Stop between tracks, and then a Play, so that with the current Volume Protection functionality, Volume Protection cuts in for every track.
So Kolia with your setup;
- BubbleUpnp server last rev, sound like you are using this as your DLNA Server.
- Using Kazoo ot Lumin as an external control point, so this is your DLNA Control Point
- External DAC USB connected to the HPTC where MC sits, so this is your DLNA Renderer? I wouldn't have thought so. Maybe MC is acting as a DLNA Renderer in this case.
Regardless, that is a bit of a strange setup. It could be that a Stop-Play sequence is being generated somewhere in that setup.
Someone may have been a bit over zealous with this fix:
23.0.85 (11/27/2017)
4. Fixed: When you started up and played a file with Volume Protection enabled, it wouldn't always switch the volume to 20%.
Could everyone with the problem confirm exactly which version they are using? i.e. MC23.0.91.
I am with you that MC shouldn't set the volume to 20% after a Stop-Play combination, and should only do it after 30 minutes as per the Wiki. This sounds like a programming error, rather than a bug.