3. The non-transitory computer-readable storage medium of claim 1 , wherein the predicted acoustic model parameters of the second target unit are determined using a statistical model.
3. The non-transitory computer-readable storage medium of claim 1 , wherein the predicted acoustic model parameters of the second target unit are determined using a statistical model. 4. The non-transitory computer-readable storage medium of claim 3 , wherein the statistical model is generated using recorded speech samples corresponding to a corpus of text.