1. Speech analysis and synthesis using a phase equalizing sound source. Tech Rep IEICE 1989;SP89-124.
2. Code-excited linear prediction (CELP): High-quality speech at very low bit rates. Proc ICASSP 1985, p 937-940.
3. A study on short-time phase and multipulse LPC. Proc ICASSP 1984, p 10.3.1-10.3.4.
4. Phase compensation in all-pole speech analysis. Proc ICASSP 1988, p 339-342.