Analysis-Synthesis of Connected Speech in Terms of Orthogonalized Exponentially Damped Sinusoids
Harold J. Manley · The Journal of the Acoustical Society of America · 1963
A continuous speech sample of six seconds' duration is pitch synchronously analyzed and resynthesized in terms of a series of orthonormal functions. The series used is obtained from a set of sixteen exponentially damped sinusoidal base functions with fixed frequencies and fixed damping at each frequency. Both the computations of the orthonormal function set and the speech analysis-synthesis operations were carried out using digital computers. The results are compared by means of listening tests, curve plots, and sound spectrograms. The major difference between the input and resynthesized speech that is evidenced in all three comparisons due to discontinuities in the resynthesized waveform at the boundaries between pitch periods.