Rational filter design with special reference to speech synthesis
A. Arcese, A. J. Goldberg · The Journal of the Acoustical Society of America · 1979
In this paper we consider the design of filters with a rational function z transform. This pole-zero representation corresponds to an autoregressive moving average in the time domain. Two methods based on least squares and a third method based on a bounded error constraint are given. Numerical results for speech waveforms are presented.