Collection of links which talks about how to control system volume via command line in various oses.
- https://github.com/Siot/PaWebControl
- https://github.com/LinusU/node-loudness
- https://github.com/afrantz/remote-volume-controller
- https://github.com/texasflood/Alsa-Mixer
- http://askubuntu.com/questions/97936/terminal-command-to-set-audio-volume
- http://unix.stackexchange.com/questions/32206/set-volume-from-terminal
- http://unix.stackexchange.com/questions/21089/how-to-use-command-line-to-change-volume
- http://xahlee.info/linux/linux_command_line_volume_control.html
- http://superuser.com/questions/42039/change-windows-sound-volume-via-the-command-line
- http://www.nirsoft.net/utils/nircmd.html
- http://superuser.com/questions/82229/how-to-control-master-volume-in-windows-7/86227#86227
- http://stackoverflow.com/questions/4640106/get-the-current-system-volume-in-windows-7/21056089#21056089
- http://stackoverflow.com/questions/3249550/is-there-a-way-in-java-jna-to-set-the-master-system-volume-reliably-in-xpv/7550110#7550110
- https://gist.github.com/rdp/8363580
- http://stackoverflow.com/questions/4640106/get-the-current-system-volume-in-windows-7
- http://superuser.com/questions/394956/how-can-i-access-volume-levels-from-the-command-line-on-windows-7