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Links to tools
The tools you need to do research on speech synthesis are mostly available as free open source software.
- HTS toolkit from Nagoya Institute of Technology
- The Festival speech synthesis system from the University of Edinburgh
- The Festvox voice building tools from Carnegie Mellon University
- SPTK signal processing toolkit
- The STRAIGHT high-quality vocoder
- hts_engine for standalone speech synthesis without HTS or HTK
