41. A computer-readable storage medium storing computer-executable instructions which, when executed, cause a data processing system to perform a method comprising: storing pronunciation data for an out-of-vocabulary word, the pronunciation data comprising phoneme sub-strings selected from candidate phoneme strings having pronunciation data associated with orthographic anchors that are close to a vector representation of the out-of-vocabulary word in an orthographical space defined by a dictionary; and transmitting the pronunciation data for the out-of-vocabulary word as an audible signal.
41. A computer-readable storage medium storing computer-executable instructions which, when executed, cause a data processing system to perform a method comprising: storing pronunciation data for an out-of-vocabulary word, the pronunciation data comprising phoneme sub-strings selected from candidate phoneme strings having pronunciation data associated with orthographic anchors that are close to a vector representation of the out-of-vocabulary word in an orthographical space defined by a dictionary; and transmitting the pronunciation data for the out-of-vocabulary word as an audible signal. 44. The computer-readable storage medium of claim 41 , wherein the dictionary comprises phoneme strings for in-vocabulary words.