26. A method as set forth in claim 25, further including modifying the digital characters representative of the printed data prior to the search of the allophone rules to include stress code data therein identifying portions of the digital characters corresponding to syllables in the printed data which are to be stressed such that the allophonic code signal corresponding to the matched digital character set will reflect the stress code data therein.
27. The method of claim 26 further including selectively smoothing the transition between the digital signals representative of allophone-defining speech parameters identifying adjacent allophones after the concatenation of the digital signals.