Microphone mute hotkey on macOS.md

1. Open Automator.app
2. Create new Quick Action
3. Select Run AppleScript
4. Add this:

set inputVolume to input volume of (get volume settings)
if inputVolume = 0 then
	set inputVolume to 100
	display notification "Volume set to 100" with title "✅ Microphone is on"
else
	set inputVolume to 0
	display notification "Volume set to 0" with title "❌ Microphone is off"
end if
set volume input volume inputVolume

5. Save as mute-microphone
6. Go to System Preferences -> Keyboard -> Shortcuts -> Services -> General
7. Find the mute-microphone service and set the hotkey (e.g. control-cmd-option M)

I added a ding!
Inspired by the mute unmute ding meets / some headphones have.

if input volume of (get volume settings) = 0 then
	set volume input volume 100
	do shell script "afplay /System/Library/Sounds/Morse.aiff"
else
	set volume input volume 0 without output muted
	do shell script "afplay /System/Library/Sounds/Ping.aiff"
end if

Sequoia 15.1 (24B2082)

I tried to make this a little more friendly and do things like return to previous volume level for sanity. I've also just consolidated optional sounds and notifications:

-- Use ~/.mic_volume to store previous volume level
set micVolumeFile to (POSIX path of (path to home folder)) & ".mic_volume"
-- Get current mic volume
set currentInputVolume to input volume of (get volume settings)

if currentInputVolume > 0 then
	-- We're currently unmuted
	-- Save current volume level to file
	do shell script "echo " & currentInputVolume & " > " & micVolumeFile
	-- Set volume level to 0
	set volume input volume 0
	-- Optional: Play mute sound. Uncomment as necessary
	-- do shell script "afplay /System/Library/Sounds/Bottle.aiff"
	-- Optional: show notification. Uncomment as necessary
	-- display notification "❌ Mic muted" with title "Mic Toggle"
else
	-- We're currently muted
	try
		-- Get previous volume level from file
		set previousVolume to (do shell script "cat " & micVolumeFile)
		set previousVolume to previousVolume as integer
	on error
		-- Set volume level to default of 50 if no existing file
		set previousVolume to 50
	end try
	-- Unmute, return to previous volume level or default 50
	set volume input volume previousVolume
	-- Optional: Play unmute sound. Uncomment as necessary
	-- do shell script "afplay /System/Library/Sounds/Pop.aiff"
	-- Optional: show notification. Uncomment as necessary
	-- display notification "✅ Mic unmuted" with title "Mic Toggle"
end if

I tried to make this a little more friendly and do things like return to previous volume level for sanity. I've also just consolidated optional sounds and notifications:

-- Use ~/.mic_volume to store previous volume level
set micVolumeFile to (POSIX path of (path to home folder)) & ".mic_volume"
-- Get current mic volume
set currentInputVolume to input volume of (get volume settings)

if currentInputVolume > 0 then
	-- We're currently unmuted
	-- Save current volume level to file
	do shell script "echo " & currentInputVolume & " > " & micVolumeFile
	-- Set volume level to 0
	set volume input volume 0
	-- Optional: Play mute sound. Uncomment as necessary
	-- do shell script "afplay /System/Library/Sounds/Bottle.aiff"
	-- Optional: show notification. Uncomment as necessary
	-- display notification "❌ Mic muted" with title "Mic Toggle"
else
	-- We're currently muted
	try
		-- Get previous volume level from file
		set previousVolume to (do shell script "cat " & micVolumeFile)
		set previousVolume to previousVolume as integer
	on error
		-- Set volume level to default of 50 if no existing file
		set previousVolume to 50
	end try
	-- Unmute, return to previous volume level or default 50
	set volume input volume previousVolume
	-- Optional: Play unmute sound. Uncomment as necessary
	-- do shell script "afplay /System/Library/Sounds/Pop.aiff"
	-- Optional: show notification. Uncomment as necessary
	-- display notification "✅ Mic unmuted" with title "Mic Toggle"
end if

This is great, thanks.
Now we need to have Apple make this a default thing for MacOS, with an option to have the mic icon on the menu bar as well, haha, I'm probably asking too much.

Now we need to have Apple make this a default thing for MacOS, with an option to have the mic icon on the menu bar as well

I meant to follow up on this gist tbh, but in the end I ended up building a whole Hammerspoon script: https://github.com/chessmango/SimpleMicMute.spoon

I wanted a bit more out of it and speed was an issue for me, so fitting into a known-good framework for this type of thing felt more fitting. I've been using it since just before my last commit successfully, with a nice menubar indicator.