A 16kbps APC codec using digital signal processors. - S. Tanaka; Y. Wake; Takashi Araseki; T. Sato; K. Kage (ICASSP, 1984)

A multi-pulse LPC speech codec using digital signal processors. - Y. Wake; S. Tanaka; Kazunori Ozawa; Takashi Araseki (ICASSP, 1985)