Github: https://github.com/raulchen/alfred-volume-control

#Usage

  - vol: show current volume   - vol $num: set volume to a specified number.   - vol mute/unmute: mute or unmute.   - vol up [$num]: increase the volume by a specified number. The default value is 10% if the $num parameter is not present. And you can hold cmd to double the increasement.   - vol down [$num]: similar to above.   - vol max: set volume to 100%.   - vol low: set volume to 25%.   - vol mid: set volume to 50%.   - vol high: set volume to 75%.

> All the above commands is searchable.    > And you can use first letters of a command, e.g. `vol u 20` means `vol up 20`, `vol mu` means `vol mute`.