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Does anyone know of any hacks for OSX that will set the mute button to always mute rather than toggle? I would feel much better knowing that when I am hitting the mute button to avoid producing any sound, I will not accidentally be turning the sound back on!

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up vote 2 down vote accepted

I don't think there is any way to do this using the built-in tools in OS X. You can however do this pretty easily in applescript:

$ osascript -e 'set volume output muted true'

There are a few utilities that can execute scripts like these - perhaps you already use Quicksilver or Alfred?

If not, FastScripts is specifically meant to assign keyboard shortcuts to Applescript, so you could basically find F9 to that command above and hit FN+MUTE and it would mute every time.

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