http://www.reuters.com/article/healthNews/idUSTRE53000Z20090401Karrie Karahalios can show a child with Asperger's Syndrome when he's lost in a conversational riff or a taciturn spouse when he doesn't speak very much.
Their voice appears on a computer terminal as vibrant colors -- red, yellow, blue, green -- the image growing in size if the voice gets louder, overlapping another color as it interrupts or abruptly narrowing with silence.
They are talking in color.
I think this would be incredibly useful, not only by helping visualize conversation input/equality, but also as something interesting to focus on rather than the stress of the conversation itself.
