16. The computer-readable storage device of claim 15 , wherein the correction table comprising the alternative character combinations of the speech input is based on similar pronunciations of alphanumeric characters.
16. The computer-readable storage device of claim 15 , wherein the correction table comprising the alternative character combinations of the speech input is based on similar pronunciations of alphanumeric characters. 17. The computer-readable storage device of claim 16 , having additional instructions stored which, when executed by the computing device, cause the computing device to perform operations comprising analyzing a speech recognition error probability to determine an alternative character combination from the correlation table most likely to match the speech input.