Improvement of the ELS-based time-varying complex speech analysis
نویسنده
چکیده
We have already proposed novel robust parameter estimation algorithms of time-varying complex AR (TV-CAR) model for analytic speech signal, which are based on GLS (Generalized Least Square) and its modification of ELS (Extended Least Square). The ELS method is more sophisticated method that can be derived by matrix inversion theorem. We have shown that the methods can achieve robust speech spectrum estimation against additive white Gaussian. However, these methods suffer from spectral gaps between adjacent analysis frames. This paper proposes improved ELS-based TV-CAR speech analysis using forward and backward linear prediction. The experiment with natural speech demonstrates that the improved method can estimate more smooth time-varying speech spectrum.
منابع مشابه
On evaluation of the f0 estimation based on time-varying complex speech analysis
We have already proposed a robust fundamental frequency (F0) estimation based on robust ELS (Extended Least Square) timevarying complex-valued speech analysis for an analytic speech signal. It has been reported that the method performs better for IRS filtered speech corrupted by white Gauss noise or pink noise since speech spectrum can be accurately estimated in low frequencies. However, the ev...
متن کاملA time-varying complex AR speech analysis based on GLS and ELS method
We have already developed three kinds of time-varying complex AR (TV-CAR) parameter estimation algorithms for analytic speech signal, which are based on minimizing mean square error (MMSE), Huber's robust Mestimation and Instrumental Variable (IV) method. This paper presents novel robust TV-CAR model parameter estimation algorithms on the basis of a Generalized Least Square (GLS) and Extended L...
متن کاملRobust Controller Design Based-on Aerodynamic Load Simulator Identification Driven by PMSM for Hardware-in-the-Loop Simulations
Aerodynamic load simulators generate the required time varying load to test the actuator’s performance in the laboratory. Electric Load Simulator (ELS) as one of variety of the dynamic load simulators should follows the rotation of the Under Test Actuator (UTA) and applies the desired torque to UTA’s rotor at the same time. In such a situation, a very large torque is imposed to the ELS from the...
متن کاملSynchronization criteria for T-S fuzzy singular complex dynamical networks with Markovian jumping parameters and mixed time-varying delays using pinning control
In this paper, we are discuss about the issue of synchronization for singular complex dynamical networks with Markovian jumping parameters and additive time-varying delays through pinning control by Takagi-Sugeno (T-S) fuzzy theory.The complex dynamical systems consist of m nodes and the systems switch from one mode to another, a Markovian chain with glorious transition probabili...
متن کاملF0 estimation based on robust ELS complex speech analysis
A robust fundamental frequency (F0) estimation algorithm based on robust ELS (Extended Least Square) complexvalued speech analysis for an analytic speech signal is proposed in this paper. Speech spectrum can be accurately estimated in low frequencies since the analytic signal provides spectrum only over positive frequencies. The remarkable feature makes it possible to realize more accurate F0 e...
متن کامل