If you use a Mac, chances are you regularly adjust the volume using your keyboard’s volume keys. They’re handy enough, but the volume increment is pretty large.

There are at least two hidden options that people are not often aware of.

1) Fine tune volume in OS X by holding down Alt(Option)+Shift then pressing the volume adjuster buttons. Also if you hit the volume down button till it shows the mute sign then hit the mute key it will play very quietly.

2) Shift+ Volume Adjusters allows you change the volume setting, without playing the “tweet” sound. This way you can lower the volume, without anyone realizing it…

3) Option – Hitting Option + Volume Adjusters will bring up the sound control panel, without having to have System Preferences startup & switching to it.