Get _off_ the mic

Just wondering about this LWN story...

  "Even if the binary only does what it is purported
  to do, it can turn on the microphone and upload
  what it hears to a remote site to search for a
  key phrase."

  https://lwn.net/Articles/648392/

Hooray for Debian for catching the immediate problem,
but now I'm wondering: Is there some kind of wrapper
that would prevent a certain application from getting
access to the mic in the first place?  Something like

  nomic /usr/bin/wtf

or some PulseAudio command that would have the same
effect?

-- 
Don Marti <[email protected]>                   
http://zgp.org/~dmarti/
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