1. A computer-implemented method for dynamically generating a speech recognition grammar, the method comprising: determining a target entry; accessing a plurality of potential distractors; selecting at least one distractor from the plurality of potential distractors, wherein the selected at least one distractor is selected based upon an acoustic dissimilarity between the distractor and the target entry; and generating, by at least one processor, a speech recognition grammar that includes the target entry and the at least one distractor.
1. A computer-implemented method for dynamically generating a speech recognition grammar, the method comprising: determining a target entry; accessing a plurality of potential distractors; selecting at least one distractor from the plurality of potential distractors, wherein the selected at least one distractor is selected based upon an acoustic dissimilarity between the distractor and the target entry; and generating, by at least one processor, a speech recognition grammar that includes the target entry and the at least one distractor. 6. The method of claim 1 , wherein the target entry is a character string comprising letters of a pre-selected alphabet, wherein the plurality of potential distractors comprises the pre-selected alphabet, and wherein the step of selecting at least one distractor comprises iteratively selecting for each character of the character string every letter of the pre-selected alphabet that is acoustically dissimilar to a particular character of the character string.