Decrease the volume on a source by 5%

A simple command-line mixer for PulseAudio.
More information: <https://github.com/cdemoulins/pamixer>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

pamixer --decrease {{5}} --source {{ID}}

click the source code to copy install pamixer on any operating system with command-not-found.com