10. The system of claim 9 , wherein the pre-recorded speech assets include values for a plurality of phonetic context trees, said phonetic context trees including a pitch context tree, a duration context tree, and a power context tree.
9. A system for creating a concatenative TTS voice comprising: a speech recognizer configured to generate a plurality of speech assets from audio recordings containing speech, wherein said speech recognizer receives pre-recorded audio and generates pre-recorded speech assets; a reduced script construction engine configured to determine, from the pre-recorded speech assets and reference speech assets that provide full phonetic coverage of the concatenative TTS voice, unfulfilled speech assets and to construct from the unfulfilled speech assets a reduced script for reading by a voice talent to provide a reduced recording, wherein the reduced recording is processed to provide the unfulfilled speech assets.