Voice and emotional expression transformation based on statistics of vowel parameters in an emotional speech database. - Toru Takahashi 004; Takeshi Fujii; Masashi Nishi; Hideki Banno; Toshio Irino; Hideki Kawahara (INTERSPEECH, 2005)

Automatic assignment of anchoring points on vowel templates for defining correspondence between time-frequency representations of speech samples. - Toru Takahashi 004; Masashi Nishi; Toshio Irino; Hideki Kawahara (INTERSPEECH, 2006)