I found that sometimes when using Zoom and other apps like Screenflow etc - that somehow my MacBook microphone input level - had for some reason been set very low.
So, I made this very simple keyboard maestro macro that automatically Opens System settings (on Mac Ventura) - then clicks the sound tab - then clicks the input tab - and then clicks the microphone input level to something quite high.
Of course you may need tweak the settings if needed - but it is a very quick way to make sure my Mac microphone level is set correctly.
You can also do this with AppleScript, setting the input volume to anything from 0 to 100:
set volume input volume 75
Here's a macro that will set the input volume to 75% when triggered with ⌃⌘I -- if you add ⇧ it will increase the current input volume by 10%, while adding ⌥ will lower it 10% instead:
It only adjusts the currently-selected input source, so if you want to change the source you'll need to poke the UI -- which is where your macro shines.
