An adaptive speech analysis system. - Hiroyoshi Morikawa; Hiroya Fujisaki (ICASSP, 1976)

Acoustic characteristics and the underlying rules of intonation of the common Japanese used by radio and television announcers. - Hiroya Fujisaki; Keikichi Hirose; Noboru Takahashi; Hiroyoshi Morikawa (ICASSP, 1986)

A speech analysis-synthesis system based on the ARMA model and its evaluation. - Hiroyoshi Morikawa; Hiroya Fujisaki (ICASSP, 1986)

Adaptive estimation of time-varying model order in the ARMA speech analysis. - Hiroyoshi Morikawa (IEEE Trans. Acoust. Speech Signal Process., 1990)