Have you ever faced an issue of tinny sound on certain laptop models, and wished that you could increase sound levels a little bit further than provided by the maximum levels in system? To increase volume by 10%:

pactl -- set-sink-volume 0 +10%

To set volume to 110%:

pactl -- set-sink-volume 0 110%

By using these commands, you can often sound volume to a level that is not provided by the default system widgets.