Mojave - How can I lower the lowest volume?
8139
Lowest volume is still too loud—how can I make it even lower?
133700
Low output volume
44941
How can I lower the TouchBar brightness level?
26322
Microphone volume at maximum yet too quiet
132850
how to suppress "Underfull \vbox (badness 10000) ... while \output is active"?
23187
Is there a way to set app-specific volume?
130646
How can I limit the headphone max volume on OS X?
80278
How to keep VLC player in minimized mode?
153213
Reduce minimum in call volume
149864
Controlling Volume Mixer
91839
How to disable the Windows8 volume On-Screen-Display?
8983
How can I easily switch audio output in Ubuntu 17.10 and later with GNOME?
47851
How to keep sound from muting while using dictation?
38072
Is it possible to use "negative sound waves" to "cancel out" a sound to create silence?
13057
How can I remap the volume buttons for custom use?
32751
How do I disable microphone volume auto-adjusting?
87561
How do I individually mute audio per tab in Chrome or Firefox?