This study examines the difficult task of Speech Activity Detection (SAD) in two hostile environments: AM push-to-talk air traffic control and international telephone conversations with very low SNRs. Due to the poor performance of traditional energy-based SAD, two novel approaches to SAD were developed that specifically target spectral characteristics that typify speech, rather than trying to ...

In this paper, by using the way of weight coecients and technique of real analysis, a multidimensionaldiscrete Hilbert-type inequality with a best possible constant factor is given. The equivalentform, the operator expression with the norm are considered.

The objective of this paper is to establish a complete characterization of multiwavelet packets associated with matrix dilation on general lattices $Gamma$ in $mathbb R^d$ by virtue of time-frequency analysis, matrix theory and operator theory.

this paper presents characterizations of m-fuzzifying matroids bymeans of two kinds of fuzzy operators, called m-fuzzifying derived operatorsand m-fuzzifying difference derived operators.