I'm working on a suite of around 25 interface sounds for a Facebook game, and wondering what kind of level to bounce the sounds out. There is no musical or ambient bed to mix the sounds against, so I'm setting the standard myself.
I usually mix music, and if I'm mastering my tracks, I'll place a limiter on the master channel and push it to 0db digital. (Let's not get into a loudness war argument here!)
In the case of the game, let's say I take what I consider to be the most important sound - the one that needs to be loudest in relation to all the other sounds - what level should this sound come out as? Should I go for full scale digital to maximise loudness, mixing the others lower in relation to this high point, or should I choose lower levels for everything so I won't risk the sounds being alarmingly loud?