Summary of factors to consider when choosing synthetic speech rather than human voice narration:
- User acceptance of synthetic speech
- Frequency of publication (e.g., production of a daily newspaper would be almost impossible to sustain with human voice narration)
- How quickly the materials are needed
- Quality of speech synthesizing program/system
- Complexity of vocabulary and/or multiple languages in the source document
- Importance of completely accurate pronunciation (e.g., readers might rely on a glossary to learn how to pronounce new vocabulary)