Long-term feature averaging for speaker recognitionMarkel, J.; Oshika, B.; Gray, A., Jr. · 1977

A linear prediction vocoder simulation based upon the autocorrelation methodMarkel, J.; Gray, A., Jr. · 1974

Least squares glottal inverse filtering from the acoustic speech waveformWong, D.; Markel, J.; Gray, A., Jr. · 1979

Implementation and comparison of two transformed reflection coefficient scalar quantization methodsMarkel, J.; Gray, A., Jr. · 1980

Fixed-point truncation arithmetic implementation of a linear prediction autocorrelation vocoderMarkel, J.; Gray, A., Jr. · 1974

Fixed-point implementation algorithms for a class of orthogonal polynominal filter structuresMarkel, J.; Gray, A., Jr. · 1975