We present a probabilistic description of the Harmonic plus Noise Model (HNM) for speech signals. This probabilistic formulation permits Maximum Likelihood (ML) parameter estimation and speech synthesis becomes a straightforward sampling from a distribution. It also permits development of a Kalman filter that tracks model parameters such as pitch, harmonic amplitudes, and autoregressive coeffic...

Although voiced speech signals are physical which approximately harmonic and electric power true harmonic, the algorithms used for analysis in systems can be successfully processing, including enhancement, noise reduction, speaker recognition, hearing aids. The discrete Fourier transform (DFT), has been widely as a phasor estimator due to its simplicity, led development of new DFT-based because...

I INTRODUCTION Advancement in technology of semiconductor devices has led to a revolution in electronic technology over the past decade. However rise in the power quality (PQ) problem is due to power equipments which include adjustable-speed motor drives (ASDs), electronic power supplies, direct current (DC) motor drives, battery chargers, electronic ballasts. The distortion in current is due t...

A novel filter configuration for the analysis of harmonic musical signals is proposed. The method is based on inverse comb filtering that allows for the extraction of selected harmonic components or the background noise component between the harmonic spectral components. A highly accurate delay required in the inverse comb filter is implemented with a high-order allpass filter. The paper shows ...

We present theoretical and experimental studies on quantum path interferences in high-order harmonic generation. Simulations of the single-atom response allow us to calculate the different quantum paths contributions; their relative phases and the resulting interferences can be finely controlled through the laser intensity that provides an efficient means for controlling the electron trajectori...

In power distribution networks, nonlinear loads produce harmonic currents that can pass through other sensitive locations in the power system and eventually back to the source. Harmonic currents can produce a variety of effects that are harmful to a power system structure. Consequentially, the deployment of new cost and energy efficient passive, active and hybrid filtering techniques is importa...

Antti Tarkiainen Power quality improving with virtual flux-based voltage source line converter Lappeenranta 2005 140 p. Acta Universitatis Lappeenrantaensis 206 Diss. Lappeenranta University of Technology ISBN 952–214–011–2, ISBN 952–214–012–0 (PDF), ISSN 1456–4491 Line converters have become an attractive AC/DC power conversion solution in industrial applications. Line converters are based on ...