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Most speech enhancement techniques do not perform very well in correlated or colored noise, as they assume that noise and speech are not correlated. In this paper, we propose a method, based on spectral subtraction, which takes into account possible correlation between noise and speech. Objective measures showed that the proposed method outperformed the(More)
Figure 3.1: Plots of the values of power spectra of speech and noise along with the cross-term of speech and noise, over a 20 ms window. Figure 3.2: Plots of the values of power spectra of speech and noise along with the cross-term of speech and noise, over a 20 ms window.
In this study, a bottom-up approach of ion irradiation from hot cathode DC discharge plasma was used to investigate the role of energetic ion flux on the self-assembly of GaSb nanodots (ND) at normal incidence. It is observed that increasing the flux in the range of 1014 to 1015 ions cm-2 s-1, the lateral dimension and the RMS roughness of ND reduces even(More)
A large plasma fireball is formed using a reverse biased planar sputter magnetron source. The magnetic field considerably reduces the contact area of the anode with the plasma and results in the formation of the fireball. Ions are extracted from the fireball using a large voltage cathode sheath of the grounded sample holder. The physical mechanism for the(More)
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