So, I've launched the game, and had it blast my ears off, because a few minutes before I had to crank up the volume for something else. No big deal, let me just... uh... yeah. The volume dial doesn't work while I'm ingame.

I've got the Soundblaster Katana Soundbar, connected via USB, and usually control the volume level using my Logitech G910 keyboard volume wheel. No response, and the issue only exists within Metro. Even using the Soundbars remote as a workaround... the volume level shows up and "changes" on the soundbar LEDs, but it does not actually do anything (as the soundbar "instructs" windows to change the volume rather than have its own volume). I could turn it up to 30, without anything actually getting louder - or down to 1, without it getting quieter. As soon as I hit muteor lower it to 0 (only by using the remote), it's muted - but that's all I can do. Mute button on my keyboard's unresponsive, too.

What gives?! That's never happened before with any game or program. It seems like Metro prevents my input devices from changing the system volume level.

Any help or workaround to this?