Application level volume control in OS X? I recently switched from PC to Mac and one thing I miss is Windows' application-level volume control (i.e. mute Firefox, turn up iTunes, turn down Skype etc). How can I achieve the same on a Mac? Or better yet, I want volume settings based on location (using HTTP location API or WiFi network name) and time of day or day of week etc.
A free and open-source solution is BackgroundMusic.
A nicer and paid solution is Rogue Amoeba's SoundSource