outcoldplayer does not play music loud in background

This is feature Windows 8 feature. It change level for all applications in background when some other application takes control in foreground.

The strange thing, that sometimes when you don't use any applications in foreground which can use sound system - you still can experience this issue. This is a bug, in Windows or other applications (sometimes it can be Skype). You can try to find this application and restart it. Or just restart the Windows itself. 

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