Adaptive ARMA lattice modeling for speech processing

Multichannel ARMA modeling by least squares circular lattice filtering

This paper makes an attempt to develop least squares lattice algorithms for the ARMA modeling of a linear, slowly time-varying, multichannel system employing scalar computations only. Using an equivalent scalar, periodic ARMA model and a circular delay operator, the signal set for each channel is defined in terms of circularly delayed input and output vectors corresponding to that channel. The ...

Pdf of lattice filter for adaptive processing

Adaptive Nonlinear Modeling for Ultrasonic Signal Processing

The purpose of this presentation is to introduce to the NDE community an empirical modeling technique which has been under development during the past thirteen years and applied particularly to many problem areas in the last five. The application of interest to today's audience is that of classification of flaw geometry from ultrasonic signals. Disciplines Materials Science and Engineering | St...

Modified realizable frequency warped ARMA modeling and its application in synthesis structures for voiced speech

Synthesis filters are of major concern in many speech applications. In this paper these filters are designed so as to track the natural variations, parameterize the perceptually relevant aspects of the pole and zero characteristics and their dynamics, and achieve reliable estimates of the filter coefficients. In this paper this is attained integrating three basic points of view in a general fra...

A recursive procedure for ARMA modeling

This paper presents a two-part fast recursive algorithm for ARMA modeling. The algorithm first obtains estimates of the p autoregressive coefficients from a set of p extended Yule-Walker equations. An exact recursive lattice algorithm for this estimator is then derived. The 4 + 1 numerator spectrum coefficients are then obtained by using one of the output data sequences of this lattice algorith...