Zhengqing Chen

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Recently, the modulation spectrum has been proposed and found to be a useful source of speech information. The modulation spectrum represents longer term variations in the spectrum and thus implicitly requires features extracted from much longer speech segments compared to MFCCs and their delta terms. In this paper, a Discrete Cosine Transform (DCT)(More)
This study investigates the topographically bound low-level, easterly jet surrounding Antarctica. This jet is modeled as a balanced flow that obeys the potential vorticity invertibility principle. This invertibility principle is expressed in isentropic coordinates, using local linear balance as the balance condition in the spherical coordinate formulation(More)
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