9. A system comprising: a processor; a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising: overgenerating potential pronunciations based on symbolic input by converting portions of the symbolic input into a number of possible lexical pronunciation variants based on an established set of conversion rules, wherein the symbolic input comprises labeled speech data; identifying potential pronunciations in a speech recognition context to yield identified potential pronunciations; and storing the identified potential pronunciations in a lexicon.
9. A system comprising: a processor; a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising: overgenerating potential pronunciations based on symbolic input by converting portions of the symbolic input into a number of possible lexical pronunciation variants based on an established set of conversion rules, wherein the symbolic input comprises labeled speech data; identifying potential pronunciations in a speech recognition context to yield identified potential pronunciations; and storing the identified potential pronunciations in a lexicon. 10. The system of claim 9 , wherein the symbolic input comprises multiple instances of a same spoken word.