This paper describes an HMM-based speech synthesis system developed by the HTS working group for the Blizzard Challenge 2007. To further explore the potential of HMM-based speech synthesis, we incorporate new features in our conventional system which underpin a speaker-independent approach: speaker adaptation techniques; adaptive training for HSMMs; and full covariance modeling using the CSMAPLR transforms.
Bibliographic reference. Yamagishi, Junichi / Zen, Heiga / Toda, Tomoki / (29, Keiichi Tokuda (2007): "Speaker-independent HMM-based speech synthesis system - HTS-2007 system for the Blizzard Challenge 2007", In BLZ3-2007, paper 008.