linuxmint volume not loud enough

The audio on my Linuxmint laptop was not loud enough, even though the volume control app was set to 100%.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Linuxmint
Description: Linux Mint 20
Release: 20
Codename: ulyana

Looking around, I found the solution in this page: https://forums.linuxmint.com/viewtopic.php?t=203209

I experimented a little, and found that this command sets my output volume to my desired level:

$ /usr/bin/pactl set-sink-volume 0 150%

and, to reset to the normal range,

$ /usr/bin/pactl set-sink-volume 0 100% 

However, having to run these commands from a terminal window was getting a little bit inconvenient.

What if I could add two shortcuts to take care of this?

So I added Ctrl-VolUp and Ctrl-VolDown shortcuts:



This is working great for me.