Convert speech to animated moving lips

Those hard of hearing often rely on being able to read a speaker's lips. Often the speaker is not aware of the listener's handicap and moves too far away, turns away from the listener, cover's their mouth while wiping their face, speaks very softly with little lip movement, etc. I would like to see a cell phone-like device (Iphone app possibly) that would convert speech to lip movements on an animated character's face on a cell phone-like screen. The character's lips would parrot the lip movements of the speaker in detail. The cell phone-like device could also act as a hearing aid and feed sound to the listener's earphone. The device / app could also translate frequencies the listener can't hear the frequencies the listener can hear. See the annotation to jutta's frequency translator idea on the attached link.