Does any kind of "dynamic mixer" exist for alsa sound? I want something that will monitor the sound level and increase the volume when it is too low and decrease it when it is too high automagically. A lot of media player applications have such a feature, but it only works in that player. I'd like to be able to enable the same effect on a global level, regardless of where the sound is coming from. (Yes, I know it will destroy the purity of beautiful audio tracks that are intended to have a wide dynamic range - I don't care - I'll disable it when I'm feeling artistic, but for normal use I want to be able to hear stuff without being blasted out of my chair when something loud comes along :-).
