The increasing usage of voiceprint analysis leaves a person wanting privacy with some concerns. Anonymity is a pillar of free speech. The equivalent of a mask is needed.

This device would strap on to one's head from the bottom and onto one's shoulders. It would then either press the head down or pull it up to a random degree. The resulting change in effective vocal cord length would change one's voiceprint.
-- Voice, Oct 22 2014

The permanent version of this Idea is thoroughly baked. https://www.google....kYKoDw&ved=0CCwQsAQ
But as a temporary thing, this Idea may be new. [Vernon, Oct 22 2014]

random, halfbakery