3. The method of claim 2 further comprising, between steps (c) and (d): (f) adapting a model used in conjunction with step (d).
3. The method of claim 2 further comprising, between steps (c) and (d): (f) adapting a model used in conjunction with step (d). 4. The method of claim 3 further comprising, after step (e): (g) predicting intelligibility of the subsequent synthesized speech; (h) determining whether the predicted intelligibility from step (g) is lower than the minimum threshold; (i) outputting the subsequent synthesized speech to the user via the loudspeaker if the predicted intelligibility is determined to be not lower than the minimum threshold in step (h); and, otherwise (j) repeating steps (f) through (j).