Trained on JSUT dataset by Shinnosuke Takamichi. See
https://sites.google.com/site/shinnosuketakamichi/publication/jsut for their term of use.
Ryosuke Sonobe, Shinnosuke Takamichi and Hiroshi Saruwatari, "JSUT corpus: free large-scale Japanese speech corpus for end-to-end speech synthesis," arXiv preprint, 1711.00354, 2017.