Mukul Bhatnagar

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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 (NDs) at normal incidence. It was observed that, when increasing the flux in the range of 1014-1015 ions cm-2 s-1, the lateral dimension and root mean square (RMS) roughness(More)
Sustained ventricular tachycardia (VT) is a life-threatening condition which requires immediate intervention. We report a case of unusual etiology of sustained VT in a 42-year-old male after a wasp bite in the absence of anaphylaxis. The patient was treated with amiodarone and improved within 48 h. Thus, wasp stings can lead to serious tachyarrhythmias(More)
Background The Himachal Pradesh state acute coronary syndrome registry recorded a median delay of 13 h between the time of onset of pain to the time of making the diagnosis and giving treatment for acute coronary syndrome. We conducted a pilot study on providing 24-h tele-electrocardiography (Tele-ECG) services in the district Kangra of Himachal Pradesh,(More)
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