Today I worked with a customer regarding his different sounds and alerts on his Mac. He came across our app SoundBunny and decided to give it a try. SoundBunny allowed him to control the volume coming from Mail, Mac System Alerts, web browsers and other applications with sound to be controlled separately. If you want to mute a specific App you can do so within SoundBunny. If you want to make it louder you can as well. SoundBunny allows you to customize the volume levels of the system to your taste. This customer wanted to find out how to mute an application and I helped him set that up.
He was pleased with SoundBunny because it allowed him full volume control of his Mac by muting unwanted application volumes and at the same time did not miss a important notification or alarm.