5. The method of claim 1 wherein step (c) includes: (c1) outputting the synthesized speech to the user via the loudspeaker; and (c2) receiving an indication from the user that the synthesized speech is not intelligible.
5. The method of claim 1 wherein step (c) includes: (c1) outputting the synthesized speech to the user via the loudspeaker; and (c2) receiving an indication from the user that the synthesized speech is not intelligible. 6. The method of claim 5 wherein in step (d) the subsequent synthesized speech is simpler than the synthesized speech.