In this paper, we propose a Bark-scale shift based piecewise nonlinear warping function for speaker normalization, and a joint frequency discontinuity and energy attenuation detection algorithm to estimate the second subglottal resonance (Sg2). We then apply Sg2 for rapid speaker normalization. Experimental results on children’s speech recognition show that the proposed nonlinear warping functi...

Abstract To study the damage of shock vibration generated by ship hull to internal equipment under secondary explosion impact, a three-dimensional simulation model BE rubber isolator was established. The signal impact load loaded AUTODYN software. And relationship between primary and frequency, amplitude, attenuation loading found. It is revealed that law curve conforms rational function. Based...

Self-diffusion in polymer solutions studied with pulsed-field gradient nuclear magnetic resonance (PFG NMR) is typically based either on a single self-diffusion coefficient, or a log-normal distribution of self-diffusion coefficients, or in some cases mixtures of these. Experimental data on polyethylene glycol (PEG) solutions and simulations were used to compare a model based on a gamma distrib...

The underlying premise of temporal large eddy simulation (TLES) is that the attenuation high-frequency content also attenuates high-wavenumber content. Yet, to date, effect in wavenumber space removing oscillations by time-domain filtering not well understood. In this work, we numerically investigate relationship between frequency and with particular attention role residual-stress TLES. Moreove...

Time-dependent changes of the wind speed, as for example in Hera Campus (East Timor), are analysed by statistical and autocorrelation function time domain frequency spectrum (frequency domain) using Fast Fourier Transform (FFT). The speed can be modelled Weibull distribution function. shows roughly a non-exponential decay with periodicity. power two peaks nearly 1/f nature at high frequencies, ...

Most reconstruction algorithms used in photoacoustic tomography do not account for the effects of acoustic attenuation on the recorded signals. For experimental measurements made in biological tissue, the frequency dependent acoustic attenuation causes high frequency components of the propagating photoacoustic waves to be significantly reduced. This signal loss manifests as a depth dependent ma...

The concept of dynamic permeability is reviewed. Modeling of seismic wave propagation using dynamic permeability is important for analyzing data as a function of frequency. In those systems where the intrinsic attenuation of the wave is caused in large part by viscous losses due to the presence of fluids, the dynamic permeability provides a very convenient and surprisingly universal model of th...

A variable step-size control by error power was proposed to improve the performance of adaptive constant modulus blind equalization algorithm based on the analysis of the cost function. In the Constant Modulus Algorithm (CMA), large step-size can achieve faster convergence rate, but the steady-state residual error is big, on the contrary, small step-size can achieve higher convergence precision...

In order to solve the amplitude attenuation of electric fast transient (EFT) generator operating in high frequency, the charging and discharging process of energy storage capacitor in EFT generator are analyzed, the main circuit voltage variation mathematical model is established, the parameters of main loop circuit and the parameters of switch driving waveform which affect burst amplitude are ...

Experiments show that waves propagating through the earth’s crust experience frequency-dependent attenuation. Three regimes have been identified with specific attenuation properties: the low-, mid-, and high-frequency regimes with attenuation in general increasing with frequency. This paper shows how the observed behavior can be explained via theory for waves in random media. It considers multi...