A real-time high quality joint-excitation linear predictive coder at 8 kbps. - K. W. Law; O. Y. Wong; C. F. Chan (EUROSPEECH, 1991)

A new coded excitation model using multifrequency decomposition. - Shu Hung Leung; K. L. Lai; O. Y. Wong; Andrew Luk (EUROSPEECH, 1991)

Decomposition of the LPC excitation using wavelet functions. - S. H. Leung 001; O. Y. Wong; K. L. Lai (EUROSPEECH, 1991)